Excessive distortion abaqus however, I get excessive distortion in the elements close to the hole. Thanks 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 ABAQUS收敛控制经验谈（一）——漫谈不收敛的原因,仿真在线提供有限元分析代工代做服务、CAE有限元培训(ansys,abaqus,fluent,cfx,autofrom,Dynaform,designlife,nastran,hfss,Maxwell、actran、iSigh等)、三维软件(solidworks,UG,catia,proe,creo,autoCAD等)培训、CAE二次开发服务，全国服务，解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 I am trying to simulate a mixed mode bending test in Abaqus using cohesive elements. Set DISTORTION CONTROL = YES to activate a constraint that acts to prevent negative element volumes or other excessive distortion for crushable materials. Distortion control cannot be used when the elements are included in an adaptive mesh domain; therefore, if you decide to use hyperelastic or hyperfoam materials in an adaptive mesh domain, you must deactivate distortion control. Nov 1, 2021 #1 Julian2w2w Mechanical. However, when Excessive distortion at a total of 1 integration points in solid (continuum) elements The system matrix has 1 negative eigenvalues. I have applied adaptive ALE to When this option is selected, Abaqus/CAE tapers the offset elements that propagate from sharp corners. 大多数材料的损伤开始时的等效塑性应变随着应力三轴度的增加而下降(这也和实验结果相同)，所以实验得出数据d3为负值，而因为定义不同，在abaqus中d3一般为正。,p为弹塑性力学中的静水压应力，而abaqus中p的公式定义为。和我们拟合公式常用的定义相比多了一个负号，国内常用公式 Hi everybody, I have a couple questions regarding ALE adaptive meshing. 16 is not able to display Abaqus; How do I solve Abaqus errors:"Zero or negative mass in element", "Excessive distortion of element number"& "Abaqus time increment has become negative? Olatunji Oladimeji Ojo @Olatunji-Ojo-2. I consider a cube made of a composite material. So, I am trying adaptive mesh refining techniques in the abaqus to control mesh distortion. ***ERROR: Excessive distortion of element number 1268 of instance PART-1-1 211993 2. They are available for stress, heat transfer, acoustic, coupled thermal-stress, coupled pore fluid-stress, piezoelectric, magnetostatic, electromagnetic, and coupled thermal-electrical analyses (see Choosing the abaqus vumat-excessive distortion. I am trying to simulate a FSSW process but the above/below errors keep on emerging. 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。解决Abaqus报错Excessive distortion网格变形过大的问题 2023-12-20 16:00 lmyuuuu的博客大多数材料的损伤开始时的等效塑性应变随着应力三轴度的增加而下降(这也和实验结果相同)，所以实验得出数据d3为负值，而因为定义不同，在 abaqus 中d3一般为正。, p为弹塑 Raphael Jean Boulbes 在2019年出了一本书，Troubleshooting Finite Element Modelling with Abaqus。这本书介绍了一些abaqus建模时会遇见的问题，以及解决方案。很难得有这样一本书，我想利用平时的时间翻译一些书中的重要内容，供大家交流学习。解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 The elements contained in element set ErrElemExcessDistortion-Step1 have distorted excessively. 007E-01 THE ANALYSIS HAS NOT BEEN COMPLETED Post by musketeer89 just fine without aborting. Please use element distortion control for deformable body. Asked 22 March 2017; Kannaki Pondicherry; The model has 4 static step (i believe static it's right, by reading abaqus documentation): 1- i get contact applying gravity to outer ring ***WARNING: EXCESSIVE DISTORTION AT A TOTAL OF 97 INTEGRATION POINTS IN SOLID (CONTINUUM) ELEMENTS ***NOTE: ELEMENTS ARE DISTORTING EXCESSIVELY. you can let abaqus print out the elements that are The Abaqus model runs well and the force-displacement response is linear, as expected (elastic model, as a reminder). Constraints are enforced by •Adaptive remeshing is performed in ABAQUS/Explicit using the arbitrary Lagrangian-Eulerian (ALE) method. Excessive distortion of elements can very well be a secondary effect to this. Good afternoon All, I am having some trouble with my Abaqus model. thanks a lot 基于 Abaqus 的复材圆管芯材剪切性能分析. The maximum force is ok, the strain gauge measurements are fine. What can I do to avoid this? 使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ ErrElemExcessDistortion ），然而这些信息往往对解决问题并没有解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 "Excessive distortion at a total of # integration points in solid (continuum) elements. I am trying to model soil penetration by a rigid cone. However, the calculation process always prompts that Excessive distortion, with large deformation model Lorentz, Andrew 2013-09-04 09:22:19 UTC. Excessive distortion of element number 5 of instance PART-1-1 15 The number of history output requests in this ABAQUS analysis (>5000)may cause SIGNIFICANT performance problems during analysis and postprocessing输出项太多，恐硬件资源不够。 ABAQUS/Explicit offers distortion control to prevent solid elements from inverting or distorting excessively for these cases. How to deal with excessive element distortion in Abaqus? Question. 1 and every other possible condition of mesh element This parameter applies to Abaqus/Explicit analyses and to solid sections in Abaqus/Standard analyses containing C3D10HS elements. everything below the line came up with the critical step warnin 本节内容：网格变形速度超过材料波速报错，网格过度扭曲造成报错的解决方法。最大变形速度的计算。, 视频播放量 10790、弹幕量 1、点赞数 177、投硬币枚数 114、收藏人数 480、转发人数 48, 视频作者麻瓜15, 作者简介有问题放心大胆问，瓜哥微信：mgua15 接技术指导，仿真调试，相关视频：【Abaqus You would do better to mesh in brick type elements rather than tetrahedral elements. I have written a user subroutine for damage ABAQUS ERROR: Excessive distortion Thread starter Julian2w2w; Start date Nov 1, 2021; Status Not open for further replies. In this cube, there are different spheres, which play the role if the composite fibers and 使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ ErrElemExcessDistortion ），然而这些信息往往对解决问题并没有 Hello everybody please i would like to simulate an hyperelastic material stretching to a stainless steel archwire ( attached picture) i have always execessive distortion can anyone help me to sole this problem. 544E+06 7. Asked 22nd Mar, 2017; Kannaki Pondicherry; and the warning message of 'excessive distortion of certain elements. The constraint method used in Abaqus/Explicit prevents each node on an element from punching inward toward the center of the element past a point where the element would become non-convex. 4 answers. 000E-14 579 2. me/abaqus_asistOur Telegram channel for FFS, Structure Integrity and the analysis of fixed equipment:https 知乎是一个发现问题和答案的平台，帮助用户探索世界背后的意义。 gamertag: I strongly suggest taking 'baby steps'; your statements reveal your 'kitchen-sink' strategy. In such case it would be best to check whether the excessive element distortion occurs when cohesive behavior isn't included in the model. ***warning: convergence judged unlikely. 1 and every other possible condition of mesh element Abaqus/Explicit offers distortion control to prevent solid elements from inverting or distorting excessively for these cases. 16 is not able to display ***warning: excessive distortion at a total of 330 integration points in solid (continuum) elements ***note: elements are distorting excessively. Dear all, I am working on a dynamic study which uses Abaqus/Explicit and I have got a problem with excessive distortion . Even after the work-piece fracture, there are still a few elements When i use mass scaling in Abaqus Explicit, sometimes one or more elements excessively distort and stops the simulation. As for the model, I'm using a symmetric model by and the warning message of 'excessive distortion of certain elements. The constraint method used in Abaqus/Explicit prevents each node on an 1. To get the load-displacement curve, I am trying to implement the Riks method, but getting the following warning To be precise, I was running an Abaqus Explicit nonlinear dynamic analysis of a RC frame and it was resulted into excessive distortion in some elements. 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 This problem encountered in the recent abaqus/explicit simulation. . Pay close attention to these warnings, as they will 使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具 One or more elements have become highly distorted. 基于Abaqus 膜单元的充气囊体结构力学性能研究. Asked 22nd Mar, 2017; Kannaki Pondicherry; 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 Hi, I am fairly inexperienced in Abaqus and am wondering how to fix the following errors in my model: "The elements contained in element set ErrElemExcessDistortion-Step1 have distorted excessively. Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. I had run the same file in one of my other workstations and eventually analysis was 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。. 用 Abaqus、Tosca、Isight 软件的联合优化. 浏览：2056 回答：3. Below is what I get from the msg. It helps you to reduce computational costs. I was experiencing excessive distortion during my Abaqus analysis causing the job to abort. Asked 22nd Jan, 2016; and the warning message of 'excessive distortion of certain elements. You also need a much finer mesh than you have shown. If this is in the start of an analysis my guess is that you have a singular problem i. Permalink. I have a problem like this: ***ERROR: Zero or negative mass in element number. com. Asked 22 March 2017; Kannaki Pondicherry; 当前位置：首页 > 仿真模拟 > 【已解决】abaqus模拟显示：单元过度扭曲，进程被迫终止【已解决】abaqus模拟显示：单元过度扭曲，进程被迫终止作者一触即发 Upon printing the strains, I notice that the strains in the y and z directions (lateral strains) quickly blow up causing excessive distortion. I have to substitute this with a ramp load. com/nitikornAll free Abaqus tutorial: https://bit. Although this doesn't completely eliminate the problem. ABAQUS动力学计算导入初始应力后无法计算，该如何解决？ Abaqus/Explicit will automatically adjust the positions of surfaces to remove any initial overclosures that exist when a contact pair is defined in the first step of a simulation, Excessive distortion of neighboring elements may result if this feature is used to correct for gross errors in the initial geometry, causing the analysis to end Subject: [Abaqus] Excessive Distortion in element Date: Tuesday, 5 January, 2010, 6:52 AM Dear group I modeled a filled hole composite plate loaded in tension. My load is instantaneous,therefore excessive distortion is inevitable. This is the default value for elements with hyperelastic or As Miguel Matos Neves mentions, the double-precision solvers aims to reduce round-off errors but it generally does not help to reduce excessive distortion. One element through the thickness won't be adequate at all. msg) if excessive element distortion is detected during the simulation. I AM WORKING WITH ABAQUS STANDARD. This is the default value for elements with hyperelastic or How to deal with excessive element distortion in Abaqus? Question. Hat jemand von Euch damit Erfahrung und könnte mir helfen? Ich stecke fest. Shutting down socket and terminating all further messages. ,50' and see the result. msg file and it says Solution unlikely to converge. 4mm thick) using cohesive interaction behavior between two parts of a phantom corresponding to the outer diameter of the cutting edges of the needle tip. I've also saw weird distorted elements running a quasi-static analysis in Explicit as well. 2. 载荷不能减小，减小了 I've faced a problem which is a little bit strange. 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 One cause of non-convergence is inadequate boundary conditions. The strain increment has exceeded fifty times the strain to cause first yield at 7 points Excessive distortion at a total of 12 integration points in solid (continuum) elements This parameter applies to Abaqus/Explicit analyses and to solid sections in Abaqus/Standard analyses containing C3D10HS elements. May 26, 2016 #1 mechdrive1 Mechanical. Also consider the behavior of materials, contact pairs My model does not converge because of (I think) excessive distortion. Asked 3rd Nov, 2015; and the warning message of 'excessive distortion of certain elements. On the surface if you make a definition by U2=0 ***WARNING: EXCESSIVE DISTORTION AT A TOTAL OF 65 INTEGRATION POINTS IN SOLID (CONTINUUM) ELEMENTS The solid (or continuum) elements in Abaqus can be used for linear analysis and for complex nonlinear analyses involving contact, plasticity, and large deformations. 楼主哥，abaqus未连接的警报错误(Thereare 2 unconnected regions in the model)，这一块，您解决了吗？ Abaqus/Standard may have trouble with the element calculations because of excessive distortion in large-displacement problems or because of very large plastic strain increments. 网格你细化点，然后检查下有没有非常细小的单元。3. Jun 2, 在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少学习abaqus没多久，发现总是能遇到看似简单奇怪，实则很具有讨论价值的问题，在此分享出来，即使没什么人能够看到，也希望自己能够坚持记录，理清思绪。最近有人问我，如果在模型中叠放两块板，给上面的一块板施加使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ How to deal with excessive element distortion in Abaqus? Question. 7 explicit mode. Asked 22 March 2017; Kannaki Pondicherry; 有做过Abaqus自适应网格重划分的吗？总是出现因网格过度扭曲而终止运算怎么解决？可能的原因： 1. 007E-01 2. Other -> ALE Adaptive Mesh Domain. Jun 2, 2020 17. The resulting elements have a constant nodal offset distance as opposed to a constant distance between the layers of the element faces. ly/NRP_AcademyInterested in FEA consultancy abaqus作业监视器中出现displacement increment for contact is too big,怎么办比较同意楼上。但是，1. I was under the impression that using ALE adaptive meshing would be able to prevent this distortion from occurring. ##Context##Each webpage that matches a Bing search query has three pieces of information displayed on the result page: the url, the title and the snippet. Live Long and Prosper ! How shall i resolve the problem of element distortion in ABAQUS? Question. CONVERGENCE IS JUDGED UNLIKELY. You may need to improve your mesh to obtain elements with better aspect ratios. Thanks "Excessive distortion at a total of 2 integration points in solid (continuum) elements Convergence judged unlikely. I ran with automatic incrementation (in this case abaqus was using 0. ABAQUS/explicit (dynamic,temp-disp,explicit step) EXCESSIVE DISTORTION PROBLEM HELP ABAQUS/explicit (dynamic,temp-disp,explicit step) EXCESSIVE DISTORTION PROBLEM HELP you're correct that I observe excessive distortion in the transition region. ELEMENTS ARE DISTORTING EXCESSIVELY. Although developed for analyses of energy absorbing, volumetrically compacting materials, distortion control can be used with any material model. The model is a concrete beam with steel sleeves on both sides of the beam. png How to deal with excessive element distortion in Abaqus? Question. If this occurs and automatic time incrementation has been chosen, the increment will be attempted again with a time increment of D H times the current time increment DASSAULT: ABAQUS FEA Solver . Distortion control использовал, он не помог, о чем в самом мануале и предупреждают: "Distortion control cannot prevent elements from being distorted due to temporal instabilities, " Написал в support abaqus'а, может чего ответят. The snippet usually contains one or two sentences, capturing the main idea of the webpage and encouraging How shall i resolve the problem of element distortion in ABAQUS? Question. I checked the . •The primary characteristics of the adaptive meshing capability are: Since Abaqus 2019 release, element deletion is possible with CDP model but only in Explicit analyses. ”即警告：系统矩 1. Instead, I would recommend to play with If you like, please support us on our Ko-fi page: https://Ko-fi. The elements contained in element set ErrElemExcessDistortion-Step1 have distorted excessively. [ABAQUS] Convergence problems Thread starter kamcio326; Start date Aug 28, 2016; Status Not open for further replies. " & "The elements in element set ErrElemZeroALEMass-Step1 have zero or negative mass. 00015 sec). 如果你确定接触类型用对了就别改了；2. 写这一专题一开始我是拒绝的，毕竟要回忆起每天抓耳挠腮气急败坏的惨痛经历But，俗话说，前人栽树后人乘凉，只能牺牲一下小 While applying boundary conditions on deformable bodies in ABAQUS, you simply select the regaarding surface of interest and empose the boundary conditions. I am doing a simulation of machining and in order to avoid excessive distortion I am trying to use ALE adaptive mesh in Abaqus 6. You can increase 上一节和大家分享了书籍《Abaqus 有限元分析实例详解》中在ABAQUS中进行弹塑性分析时，如何定义材料弹塑性方法。今天再和大家分享一下一节弹塑性分析中的收敛问题解的几种方法：如果在弹塑性材料上施加的荷载较大时，很可能会造成很大的局部应变（使用点载荷时尤其容易出现此问题），就 As my analysis is based on a crimping step where NLGEOM=on(thus including non-linear effects due to large plastic deformations), the software Abaqus Standard/Explicit 6. 1 and every other possible condition of mesh element How to deal with excessive element distortion in Abaqus? Question. 解决 Excessive distortion 的一般思路在使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形（Excessive Element Distortion）。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元（ErrElemExcessDistortion），然而这些信息往往对解决问题并没有多少帮助。 I am modelling a blanking process using Abaqus / explicit with ALE adaptive mesh to control the high distortion of elements. CONVERGENCE IS Description: By default, ABAQUS/Explicit will activate element distortion control for solid elements modeled with hyperelastic or hyperfoam materials. FORCE 1. 请问大家怎么找具体原 Excessive distortion at a total of 9099 integration points in solid (continuum) elements i attached a txt-file with the warning window. Abaqus/Explicit offers distortion control to prevent solid elements from inverting or distorting excessively for these cases. " Abaqus 可能会提示有些 Elements 出现了过度变形，并提示可以通过 element set ErrElemExcessDistortion 查看。即使该模拟中途因错结束，也可以在输出中查看到这些单元。 Our telegram channel for Abaqus and Q&A: https://t. the step chosen is dynamic, temp-disp, explicit and am stuck at solving distortion of mesh due to the But as soon as I change the number of elements to only two, the analysis gets aborted due to excessive distortion energy. 04347e-05" B系列有一些直接导致计算aborted，那就得仔细分析了，比如： 1 xxxxx is not a valid in ABAQUS/Standard(告诉你这种计算standard不支持了，换别的) 2 missing property 在perperty步检查材料属性是不是都加上了。如果有梁单元，看看梁法向定义对了没有。 Excessive distortion of •Adaptive remeshing is performed in ABAQUS/Explicit using the arbitrary Lagrangian-Eulerian (ALE) method. As my analysis is based on a crimping step where NLGEOM=on(thus including non-linear effects due to large plastic deformations), the software Abaqus Standard/Explicit 6. 9 answers. 在abaqus仿真中，楔块设置了边界载荷，当载荷是汉宁窗调制的正弦信号，在400kHz频率，模型就能正常允许，一旦改变频率就会报错。 Posted by u/heisenberg_yo - 2 votes and 3 comments I'm working on the simulation of needle penetration into a thermoplastic polyurethane foil (0. increment will be attempted again As my analysis is based on a crimping step where NLGEOM=on(thus including non-linear effects due to large plastic deformations), the software Abaqus Standard/Explicit 6. It can be seen that the matrix overlaps with one of the circular particles, which causes this issue. 1 and every other possible condition of mesh element Hello~ 此篇文章为 Abaqus 爬坑指南系列的第四篇，我们来聊一聊Abaqus常见的报错原因和解决方案。. The constraint method used in ABAQUS/Explicit prevents each node on an element from punching inward toward the center of the element past a point where the element would become non-convex. Has anyone encountered similar issues? if so, can you How to deal with excessive element distortion in Abaqus? Question. 2, for details). For instance, ". Another interesting matter is mass scaling. ", "Can I deactivate this element from further analysis?Have you gone If distortion control is used, the energy dissipated by distortion control can be output upon request (see “Abaqus/Explicit output variable identifiers,” Section 4. Try incrementing the load more slowly (increase the number The model has 4 static step (i believe static it's right, by reading abaqus documentation): 1- i get contact applying gravity to outer ring ***WARNING: EXCESSIVE abaqus求解过程中报warning说excesive distortion，如何有效解决？在ABAQUS热分析中，设置了C3D10MT网格，采用正四面体网格进行mesh，最终报告的是增量步太多error Thank you FEA way!! Yes I am using ABAQUS/Explicit with having the impactor to be a rigid body. Red Flag This Post Please let us know here why this post is inappropriate. 在做ABAQUS蠕变分析的时候，出现Excessive distortion at a total of 4 integration points in solid (continuum) elements然后计算停止。如下图，显示在固体(连续体)单元中总共3个积分点的过度畸变。微信截图_20180123223929. Increment will be attempted again with a time increment of 1. 1 and every other possible condition of mesh element Hey I've had issues with element distortion before. The e Our telegram channel for Abaqus and Q&A: https://t. I'm not sure how I can give correct biased meshing, there are two types in it- single and double Excessive distortion of element number 5 of instance PART-1-1 如果有子程序，一般不是材料设置有问题，就是边界条件的问题 14 XML parsing failure for job 1. and the warning message of 'excessive distortion of certain elements. 642E+05 LARGEST RESIDUAL FORCE -1. Excessive distortion at a total of 10 integration points in solid 2. me/abaqus_asistOur Telegram channel for FFS, Structure Integrity and the analysis of fixed equipment:https ABAQUS/Standard may have trouble with the element calculations because of excessive distortion in large-displacement problems or because of very large plastic strain increments. Asked 22 March 2017; Kannaki Pondicherry; ABAQUS ERROR: Excessive distortion Thread starter Julian2w2w; Start date Nov 1, 2021; Status Not open for further replies. Abaqus在动力电池上箱体密封仿真分析中的应用. 2. for some modes of hourglass control. 在使用通用有限元软件（如Abaqus，lsdyna，ansys）进行隐式分析计算（或静力分析，或动力学初始状态求解）时，对于复杂装配体模型，大家或多或少会遇到以下警告信息： “***WARING:THE SYSTEM MATRIX HAS * NEGTIVE EIGENVALUES. Eng-Tips is the largest engineering community on the Internet Intelligent Work Forums for Engineering Professionals Excessive distortion on Abaqus/Explicit Helene D 2007-06-04 13:42:17 UTC. So far, I have been successful in getting the correct results for a cube for both tension and compression with the cube being modeled with just one Also, take a closer look at the location with excessively distorted elements - maybe the mesh should be refined there or there's another reason for the distortion. 03 November 2015 4 9K Report. " How I can fix this error?It is important to note that NLGEO is on. If this occurs and automatic time incrementation has been chosen, the increment will be attempted again with a time increment of times the current time increment, where I'm modeling a welding process in ABAQUS/explicit, and facing the same distortion problem. 16 is not able to display 首页 > 人工智能 > 解决Abaqus报错Excessive distortion网格变形过大的问题内容详情解决Abaqus报错Excessive distortion网格变形过大的问题 The elements contained in element set ErrElemExcessDistortion-Step1 he distorted excessively. B系列有一些直接导致计算aborted，那就得仔细分析了，比如： 1 xxxxx is not a valid in ABAQUS/Standard(告诉你这种计算standard不支持了，换别的) 2 missing property 在perperty步检查材料属性是不是都加上了。如果有梁单元，看看梁法 How to solve the abaqus error: Excessive distortion of element ? Question. probability of software crash due to the excessive distortion of elements. ' In ABAQUS/Explicit it is also used to select a nondefault kinematic formulation for 8-node brick elements, to choose the second-order accurate formulation for solids and shells, to activate distortion control for solid elements, to scale the linear and quadratic bulk viscosities, to specify whether elements must be deleted when they are Excessive distortion at a total of 16 integration points in solid (continuum) elements. The soil is an elastic-perfectly-plastic material using Mohr Coulomb plasticity. something is loose so that you receive "heavy displacements" when applying your load meaning that Abaqus cannot resolve the contacts properly. ' and the warning message of 'excessive distortion of certain elements. I found in the log file that the strains at first step become infinite (NAN). However, when I copy the model and change the rake angle from positive 30 degrees to a 0 degree rake angle or negative it produces excessive element distortion, please see in the picture. Asked 22 March 2017; Kannaki Pondicherry; Warnings During Analysis: Abaqus often issues warning messages in the message file (. convergence is judged unlikely. Hi All. Based on your picture it appears that these distorted elements stick to another part and are abaqus 存在distorted excessively，如何解决？ 20. A Tie constrain is adopted between the steel sleeve and the beam (when the concrete is actually poured, the steel sleeve is embedded in the concrete). The material properties being Neo-Hookean. Excessive distortion at a total of 252 integration points in solid (continuum) elements Excessive distortion at a total of 18 integration points in solid (continuum) elements "Excessive distortion at a total of # integration points in solid (continuum) elements. I am trying to implement a composite material model in vumat. I know in ABAQUS Standard, you can mitigate the distortion (and the lack of convergence) using *section controls. e. However, when I run the case, a warning message like this appears: DISTORTION CONTROL PARAMETER FOR THE *SECTION CONTROLS OPTION IN Abaqus/Standard IS VALID ONLY FOR C3D10I ELEMENTS AND WILL BE IGNORED FOR ALL OTHER ELEMENT TYPES IN ABAQUS模拟出现问题，都需要去monitor，msg文件中查看原因，如何分析这些信息呢？ Excessive distortion of element number 5 of instance PART-1-1；如果有子程序，一般不是材料设置有问题，就是边界条件的问题。各位大神，我在做齿轮接触分析的时候提示Excessive distortion at a total of 1257 integration points in solid (continuum) elements ，在第一步就不收敛，请问这是什么原因造成的，谢谢各位回答！ Excessive distortion can be resulted by several reasons, including contact problem, abrupt change in stiffness due to large increment size, large mesh size, insufficient boundary conditions, or ABAQUS分析错误. At higher loads (say > 10 N), when the linear displacement of the indenter begins, the job gets aborted due to Excessive element distortion. You can also reduce element distortion by using a larger element size in the location of the concave The main problem is excessive deformation which causes mesh distortion. Sat, 2009-05-16 09:26 - pani3882. 283E+04 AT ABAQUS 中EXCESSIVE DISTORTION OR EXCESSIVE ROTATION OG THE NORMAL IN 4 SHELL ELEMENTS <br>这个是划分网格时，选择的单元有问题吗？各位前辈，本人刚开始接触Abaqus。谢谢 <br> 问题是这样的：提交作业运算一定时间后，警告框中连续出现以下几句话：“Excessive distortion at a total of 3 integration points in solid (continuum) elements Excessive distortion at a . 007E-01 00:29:01 1. 642E+05 TIME AVG. The LS-Dyna model however, is modelled similarly but of course the contact It is too high so for high initial velocity displacement of nodes for each increment is to high. A model can also be over or under constrained. ' I have tried to use enhanced hourglass control, distortion control as 0. For mass scaling factor, if the ratio of the kinetic energy to the internal energy is less than 10%, it is OK. The warning is always - 'Excessive distortion on some solid (continuum) elements' and usually after 5 times of Us the solution failed. Unreasonable boundary conditions can lead to local extreme deformations. meine Abaqus-Simulation bringt mir die Warnung: "***WARNING: EXCESSIVE DISTORTION AT A TOTAL OF 6 INTEGRATION POINTS IN SOLID (CONTINUUM) ELEMENTS" und ich habe die Befürchtung, dass das mein Ergebnis verfälscht (Simulation läuft anstandslos durch). In addition, please put 'Frequency = 1' and 'Remeshing sweeps per increment = 15,20,25,. 1 answer. file Please advise me how can I overcome this issue EQUILIBRIUM ITERATION 2 AVERAGE FORCE 1. 466E+04 INSTANCE WITH CRITICAL ELEMENT: PART-1-1 A special ODB Field Frame with all relevant variables was written at 2. Abaqus对某中速机主轴承横拉螺栓螺母压痕分析 The Abaqus user manual describes it as follows: Abaqus/Explicit offers distortion control to prevent solid elements from inverting or distorting excessively for these cases. Try incrementing the load more slowly (increase the number of substeps or decrease the time step size). I have used in-bulit hashin failure criteria. prompt_template = """You are an expert human annotator working for the search engine Bing. I am doing the simulation of simple shear of a square using quadrilateral element type for the mesh. I have selected C3D4 elements and deactivated the distortion control. It seems that I have finally understood what my problem is. All my units are consistent. •The primary characteristics of the adaptive meshing capability are: How do I solve Abaqus errors:"Zero or negative mass in element", "Excessive distortion of element number"& "Abaqus time increment has become negative? Question. research. You can switch the option on in "Step" module. ABAQUS/explicit (dynamic,temp-disp,explicit step) EXCESSIVE DISTORTION PROBLEM HELP Thread starter mechdrive1; Start date May 26, 2016; Status Not open for further replies. Asked 7 October 2022; Yuting Chen; I am using abaqus/Exiplict to simulate metal plastic deformation. ***note: severe contact overclosures exist. So the mesh cannot be a problem. Increasing frequency also helps to prevent distortion as far as I have understood. uyrify wrbjk uuypn vwtgpeh qghld sdvotyf nieekkjw sbazg gkhonqu hiy orprc twgug ymbbb vow pjwv

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