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Elastic VUMAT: Simplest Abaqus VUMAT Subroutine for Beginners
This video guides you step-by-step on how to write your very first VUMAT subroutine. To start, we will introduce the VUMAT interface and its arguments, followed by a detailed explanation of an isotropic elastic VUMAT, the simplest material behavior.
You can find elastic and plastic UMAT or VUMAT subroutines, related CAE files, and more educational videos about plastic VUMAT on our website:
www.engssoft.com.
มุมมอง: 353

วีดีโอ

Understanding Abaqus Dynamic Explicit Algorithm
มุมมอง 372หลายเดือนก่อน
In this video, we dive into the core algorithm of Abaqus Dynamic. We’ll solve a simple bar compression example using the explicit method, covering key topics like node mass, mass matrix, velocity, displacement, strain, stress, and high-speed problem modeling. By the end, explaining the total algorithm, you'll have a clear understanding of how the explicit solver works and why it’s ideal for com...
ABAQUS Step Settings: initial, minimum and maximum increment size
มุมมอง 4672 หลายเดือนก่อน
Welcome to this video on setting up a static general step in Abaqus. This video shares 13 essential tips to help you optimize your settings and achieve convergence. If you're working with the static general solver, stay tuned-these tips will make a huge difference! Tips are about Five key parameters in step setting of Abaqus standard solver: 1. Time period 2. Maximum number of increments 3. Siz...
VUMAT vs UMAT: 6 Key Differences You Must Know!
มุมมอง 2742 หลายเดือนก่อน
In this video, we explore the 6 key differences between UMAT and VUMAT subroutines in Abaqus. If you're transitioning from writing a UMAT to VUMAT or working on your first VUMAT subroutine, this guide will help you navigate the crucial distinctions, including naming conventions, shear strain definitions, tensor ordering, and more. Understanding these differences can save you time and improve yo...
Guide to ABAQUS Step Settings Basic Tab: Nlgeom, Time Period, Stabilization, Adiabatic!
มุมมอง 3182 หลายเดือนก่อน
When setting up a static general step in Abaqus, there are four key settings in the Basic tab including Time Period, Nlgeom (Nonlinear Geometry), Automatic Stabilization, and Adiabatic Heating. In this video, we'll explain each of them in detail, so if you're using the static general solver, be sure to follow along!
How Abaqus/standard (implicit) algorithm works
มุมมอง 1.9K6 หลายเดือนก่อน
This video gives an introductory explanation on how ABAQUS standard solver algorithm, generally known as implicit solver, works in ABAQUS software. We also explain what step, increment, iteration and frame are.
What are representative volume element (RVE) and unit cell (UC)
มุมมอง 4326 หลายเดือนก่อน
Representative Volume Elements or RVE and Unit cells or UC are being used as methods to bridge between different length scales. They are getting attention as useful tools for multiscale modelling in heterogeneous and porous materials. In this video, we will talk about: When to use RVE or UC, What are RVE and UC, What is the difference between RVE and UC. Related video and products: www.engssoft...
Modeling 3D random RVE of unidirectional composite: Abaqus Plug-in
มุมมอง 4877 หลายเดือนก่อน
In this video, we will discuss about a unique plug-in for creating 3D random RVE of unidirectional fiber reinforced composite materials. This plug-in is capable of creating an RVE with high volume fraction up to 80 percent through combining three fiber placement algorithms, creating an RVE using embedded region, merge or voxel-based methods, considering the periodicity of the RVE, assigning mat...
Abaqus: embedded region technique, Merge or Voxel approaches
มุมมอง 6048 หลายเดือนก่อน
In this video, we will compare the advantage and disadvantage of the embedded region and merge techniques, which are mostly used in finite element simulation of fiber reinforced composites, reinforced concrete, particle reinforced composites, foam-filled lattice structures and similar structures. In addition, in this video we have a glance on the voxel-based finite element analysis approach. By...
Metal forming (Bulge test) by ABAQUS standard: beginner tutorial
มุมมอง 7678 หลายเดือนก่อน
In this video, we want to simulate the bulge forming process in ABAQUS software. Every step is explained in details so this video is suitable for beginners to start modeling metal forming by Abaqus software. In this video, we will cover: a basic introduction to the bulge forming process, a basic introduction to axisymmetric modeling, demonstrating a simple bulge forming problem, step by step si...
Embedded element technique (region constraint) in ABAQUS
มุมมอง 7468 หลายเดือนก่อน
In this video we presented the correct way of defining embedded region constraint or embedded technique in ABAQUS software. Embedded region constraint is a useful technique while simulating fiber reinforced polymer composite materials, steel rods reinforced concrete, foam-filled lattice structures and similar ones. However, care must be taken to use it correctly, otherwise the structure will be...
5 tips on mesh size and generating high quality mesh
มุมมอง 1.1K9 หลายเดือนก่อน
In this video we discussed some tips on how to generate mesh with high quality on part. Mesh quality affect the accuracy of the final results and also computational cost. We discussed mesh distortion, mesh dependency study, mesh size for bending and meshing holes, variable mesh size generation. 00.00,00.43 Introduction 00.43,03.34 Tips on mesh generation You can watch these videos for more info...
RVE of unidirectional composites or circular inclusions by Abaqus Plug-in
มุมมอง 7239 หลายเดือนก่อน
EngSoft_UD2D_V1 This Abaqus Plug-in creates two dimensional (2D) representative volume element (RVE) of circular inclusions or fibers in a rectangular matrix. The plug-in is best suited for 2D meso scale modeling of unidirectional composites, concrete, metal matrix composite, and particle reinforced polymers with high or low volume fraction. Plug-in considers all possible options for easy model...
Low density foam model in ABAQUS, Theory and parameters
มุมมอง 55510 หลายเดือนก่อน
Low density foam model is one of the available built-in model in ABAQUS software for simulating foam materials and similar ones. You must perform uniaxial tensile and compression tests on foam at different strain rate and then import the data to ABAQUS software. In this session, a tutorial on how to specify required parameters for defining low density foam model is presented. 00.00,00.47 Introd...
Indentation of an elastomeric foam with Hyperfoam model in ABAQUS
มุมมอง 65410 หลายเดือนก่อน
Hyperfoam model is one of the available built-in model in ABAQUS software for simulating foam materials and similar ones. In this example, a cylindrical specimen of an elastomeric foam, indented by a rough, rigid, hemispherical punch was considered. This problem illustrates a typical application of elastomeric foam materials when used in energy absorption devices. The hyperfoam model is defined...
Hyperfoam model in ABAQUS, Theory and Parameters
มุมมอง 83710 หลายเดือนก่อน
Hyperfoam model in ABAQUS, Theory and Parameters
Understanding Foam behavior and related material models in Abaqus
มุมมอง 1.3K10 หลายเดือนก่อน
Understanding Foam behavior and related material models in Abaqus
Abaqus Plug-in to apply periodic boundary condition (PBC) to RVE of 3D problems
มุมมอง 1.7K11 หลายเดือนก่อน
Abaqus Plug-in to apply periodic boundary condition (PBC) to RVE of 3D problems
Abaqus UMAT for damage of three dimensional (3D) fiber reinforced composites
มุมมอง 2.2K11 หลายเดือนก่อน
Abaqus UMAT for damage of three dimensional (3D) fiber reinforced composites
Find and import input file (*.inp) from ABAQUS documentation
มุมมอง 1.5Kปีที่แล้ว
Find and import input file (*.inp) from ABAQUS documentation
Abaqus Plug-in for periodic boundary condition (PBC) of 2D problems RVE
มุมมอง 745ปีที่แล้ว
Abaqus Plug-in for periodic boundary condition (PBC) of 2D problems RVE
ABAQUS plug-in for 2D RVE of random fibers discontinuous composite, EngSoft_RandRec_V1
มุมมอง 587ปีที่แล้ว
ABAQUS plug-in for 2D RVE of random fibers discontinuous composite, EngSoft_RandRec_V1
Abaqus plugin to model elliptical inclusions RVE: EngSoft_RandElli_V1
มุมมอง 826ปีที่แล้ว
Abaqus plugin to model elliptical inclusions RVE: EngSoft_RandElli_V1
Introduction to fracture mechanics: Griffith model, surface energy.
มุมมอง 3.5Kปีที่แล้ว
Introduction to fracture mechanics: Griffith model, surface energy.
Embedded element technique in Abaqus: Description
มุมมอง 2.7Kปีที่แล้ว
Embedded element technique in Abaqus: Description
Stress Triaxiality in damage models of Abaqus
มุมมอง 7K2 ปีที่แล้ว
Stress Triaxiality in damage models of Abaqus
Plastic UMAT for Abaqus
มุมมอง 8K2 ปีที่แล้ว
Plastic UMAT for Abaqus
UMAT: Jacobian Matrix for elastic and plastic materials
มุมมอง 5K2 ปีที่แล้ว
UMAT: Jacobian Matrix for elastic and plastic materials
Computational Plasticity (Algorithm for Mises UMAT)
มุมมอง 9K2 ปีที่แล้ว
Computational Plasticity (Algorithm for Mises UMAT)
Understanding plasticity theory (for Mises UMAT)
มุมมอง 18K2 ปีที่แล้ว
Understanding plasticity theory (for Mises UMAT)

ความคิดเห็น

  • @HaiNguyen-sf3mv
    @HaiNguyen-sf3mv 3 ชั่วโมงที่ผ่านมา

    I am doing research on this subject. Can you send me this cae file for reference?

  • @simoneceron1915
    @simoneceron1915 12 ชั่วโมงที่ผ่านมา

    I recive the error too many attempts made for this increment the instant before the crack should start to propagate. nay suggestion?

  • @anaghasajath4322
    @anaghasajath4322 4 วันที่ผ่านมา

    Can you please share the journal title..it will be very helpful to do my project

  • @محمداسحاقی-ط3و
    @محمداسحاقی-ط3و 6 วันที่ผ่านมา

    Hello, thanks for making this video. Could you please explain how we can obtain stiffness matrix for this composite?

  • @محمداسحاقی-ط3و
    @محمداسحاقی-ط3و 7 วันที่ผ่านมา

    Hi, thanks for making this video. Could you please make a video explaining how to derive the final stiffness matrix for a composite like this

  • @VoDoanHung
    @VoDoanHung 8 วันที่ผ่านมา

    Thank you for the excellent tutorial. Could you please let me know which book or paper you referenced for the homogenization formula?

  • @killerx5
    @killerx5 19 วันที่ผ่านมา

    hello sir, thank for this amazing video, it helped me a lot, but im facing a problem, i couldn't do the whole process, once i get to -45 deformation, it gives me an aborted, when i check, i can see visually that the blank go through the holder and stops there, could you help me understand why, thank you for your patience.

  • @maryamgoli-x3w
    @maryamgoli-x3w 20 วันที่ผ่านมา

    Thanks a lot, very helpful.

  • @mahabuburrohoman1367
    @mahabuburrohoman1367 29 วันที่ผ่านมา

    Take love!

  • @kaursingh637
    @kaursingh637 หลายเดือนก่อน

    THE LECTURE IS EXCELLENT -- TOO MUCH INFORMATION IN TOO LITTLE TIME-- PLEASE SPEAK SLOWLY -- PLEASE MAKE MANY SIMPLE LECTURES --THANK U FOR EXCELLENT LECTURE

  • @chadhu5846
    @chadhu5846 หลายเดือนก่อน

    thanks ! help a lot. I thought it is run in the job , now I know the problem , hope can run fast with my 3D model.

  • @AgriMetSoft
    @AgriMetSoft หลายเดือนก่อน

    It was useful! Thanks!

  • @جودیابوت-ص9ش
    @جودیابوت-ص9ش หลายเดือนก่อน

    excellent 👌❤

  • @University-f7q
    @University-f7q หลายเดือนก่อน

    Explained it in 3 minutes. Wonderful Video... Honestly

  • @fatemejafari50
    @fatemejafari50 หลายเดือนก่อน

    Thanks a lot for your sharing your knowledge and experience. 🌹🌹🌹

  • @mgokul005
    @mgokul005 หลายเดือนก่อน

    Excellent video explaining the basic concepts of Explicit analysis. I have seen multiple videos, however, this one is crisp and to the point. I have one suggestion though, @2.47, the E(el2) should not be zero.

    • @engineering_software
      @engineering_software หลายเดือนก่อน

      Thanks for your exact comment. Yes there is a typo about strain in element 2. As mentioned in continue strain and stress are not zero for element one and two at the end of second increment.

  • @alishah-mohammadi-azar1423
    @alishah-mohammadi-azar1423 หลายเดือนก่อน

    ok

  • @dr.samylawaty1281
    @dr.samylawaty1281 2 หลายเดือนก่อน

    it is very useful

  • @fatemejafari50
    @fatemejafari50 2 หลายเดือนก่อน

    Thanks that will really help to start writing a vumat.

  • @daryaforooghi
    @daryaforooghi 2 หลายเดือนก่อน

    Hi, Thank you for sharing. I wanted to know which method is used here to reach an 80% volume fraction?

    • @engineering_software
      @engineering_software 2 หลายเดือนก่อน

      As explained in the video the plug-in uses combination of three methods to create high volume fractions.

  • @fatemejafari50
    @fatemejafari50 2 หลายเดือนก่อน

    ‌ Fantastic!

  • @luizscosta90
    @luizscosta90 2 หลายเดือนก่อน

    Great video! Thank you

  • @mugheesshahidkhan78
    @mugheesshahidkhan78 2 หลายเดือนก่อน

    i found this video useful. thank you sir

  • @edsonrodrigues3147
    @edsonrodrigues3147 3 หลายเดือนก่อน

    Thank you for this excellent video! in 11:31, the derivative of deviatoric stress with respect to stress tensor is the identity matrix? isn't it (2/3)identity?

  • @mustaphachiad
    @mustaphachiad 3 หลายเดือนก่อน

    a helpful vedeo, thanks

  • @张志文-n5s
    @张志文-n5s 3 หลายเดือนก่อน

    Good job! Is this UMAT based on 3D Hashin criteria? Thanks~

    • @engineering_software
      @engineering_software 3 หลายเดือนก่อน

      It is a 3D damage model similar to 3D Hashing model. Please find the free code and more information in our website: www.engssoft.com

  • @siddharthpachori6451
    @siddharthpachori6451 3 หลายเดือนก่อน

    Thank you so much. I wish my professor had explained this way. I have watched your other playlists as well. Keep doing the great work I have so much to learn from you.

  • @ParameswaranPed22d008
    @ParameswaranPed22d008 3 หลายเดือนก่อน

    What is the significance of eigen values and no of eigen valie

  • @mangood3382
    @mangood3382 3 หลายเดือนก่อน

    Thanks a lot, it's very useful ! Will you upload the new video for explaining how to use FEM to evaluate stress triaxiality?

  • @anulekhachakraborty9901
    @anulekhachakraborty9901 3 หลายเดือนก่อน

    I have an imported part so in that I can not assign seam as it says "there are no geometry to assign seam". How to carry out countour integral crack modelling in such case?

    • @AdarshGaurav-t7e
      @AdarshGaurav-t7e หลายเดือนก่อน

      hello anulekha...my work is based on fatigue crack....can u teach me

  • @momon8738
    @momon8738 3 หลายเดือนก่อน

    Hi, can you tell me the reference for the cohesive contact parameter, please?

  • @mohammadjameelzidan9281
    @mohammadjameelzidan9281 3 หลายเดือนก่อน

    May God bless you, my dear friend. Could you please help me with an answer? Thank you for your patience. In the deep drawing simulation, I encountered several issues and need your insights. Why didn't the sheet pull down from the upper edges as shown in your educational video? Thank you!

  • @kahviarmandapurwanto8641
    @kahviarmandapurwanto8641 4 หลายเดือนก่อน

    Hello sir can i get the references for the value of tensile strength and others please?

  • @kibromberihu-c2z
    @kibromberihu-c2z 4 หลายเดือนก่อน

    its supportive thank you👍

  • @danielbc8870
    @danielbc8870 4 หลายเดือนก่อน

    Shouldn't you also create interaction (convection and radiation) at the top surface where the torch works?

  • @kar-dt1hk
    @kar-dt1hk 4 หลายเดือนก่อน

    thank you sir for sharing this helpful video, sir i have modeled hollow sphere subjected to internal radials displacement, and my question is about meshing in Abaqus, i don't know how to create 1 μm × 50 μm at the inner cavity in radial direction and 100 μm × 50 μm at the circumference

    • @engineering_software
      @engineering_software 4 หลายเดือนก่อน

      Please use meshing (seeding) borders. You can use this video: th-cam.com/video/vLQ4H5_QBAc/w-d-xo.htmlsi=cHYuXEN51t8G1hXG

  • @kar-dt1hk
    @kar-dt1hk 4 หลายเดือนก่อน

    Very helpful video,thank you sir for sharing

  • @mohammadjameelzidan9281
    @mohammadjameelzidan9281 4 หลายเดือนก่อน

    Job deepdrawing: Analysis Input File Processor aborted due to errors. Error in job deepdrawing: Analysis Input File Processor exited with an error Job deepdrawing aborted due to errors. This phrase appears when I submit for job.

    • @engineering_software
      @engineering_software 4 หลายเดือนก่อน

      Are you using explicit or implicit solver?

    • @mohammadjameelzidan9281
      @mohammadjameelzidan9281 4 หลายเดือนก่อน

      I am using explicit solver

    • @engineering_software
      @engineering_software 4 หลายเดือนก่อน

      For explicit solver definitely there is a mistake following the steps of the videos. Please check all the step. And if you could not solve the problem please send details of error to me by email.

    • @mohammadjameelzidan9281
      @mohammadjameelzidan9281 4 หลายเดือนก่อน

      Thank you for your kindness ❤❤

  • @AminRahimi-1
    @AminRahimi-1 4 หลายเดือนก่อน

    thanks

  • @mohammadjameelzidan9281
    @mohammadjameelzidan9281 4 หลายเดือนก่อน

    thank you

  • @mohammadjameelzidan9281
    @mohammadjameelzidan9281 4 หลายเดือนก่อน

    thank you, can you complete this work

    • @engineering_software
      @engineering_software 4 หลายเดือนก่อน

      You can find the complete series in the Playlist.

  • @fatemejamshidi7984
    @fatemejamshidi7984 5 หลายเดือนก่อน

    Amazing!

  • @fatemejamshidi7984
    @fatemejamshidi7984 5 หลายเดือนก่อน

    Thank you. It was very helpful.

  • @linghaokong4396
    @linghaokong4396 5 หลายเดือนก่อน

    thanks a lot for the vedio! But in 13:08, it should be subtract sign in stead of add sign in the maternal

  • @ASWATHYG-p9n
    @ASWATHYG-p9n 5 หลายเดือนก่อน

    Hii, I am working on cellular lattice materials 3D modeling with struts in 3 dimensions. will this plugin work for such type of complex structures ie 3D RVE with cylindrical struts??? can i purchase this for my work??

    • @engineering_software
      @engineering_software 5 หลายเดือนก่อน

      Yes it also works for lattice structures. However let's communicate by email for more details. engsofteducation@gmail.com

  • @PhucNguyen-cs7vj
    @PhucNguyen-cs7vj 5 หลายเดือนก่อน

    How do I know the name of HistoryRegion?

  • @ميساء-ز2م
    @ميساء-ز2م 5 หลายเดือนก่อน

    HOW YOU GET THE PLASTIC STRAIN AND THE YIELD STRESS

  • @pma7224
    @pma7224 5 หลายเดือนก่อน

    Hey. I tried to implement it in a matlab code. I want to silmulate a uniaxial tensile Test. After the first plastic step i get a little stress in the 22 and 33 component of the stresstensor. this false components are then go into the new trial stress and over several loops add up to a very false result. what do you think i did wrong?

  • @musedegefe5906
    @musedegefe5906 5 หลายเดือนก่อน

    Hope, you may consider loading/unloading on next video!

    • @engineering_software
      @engineering_software 5 หลายเดือนก่อน

      Unloading was illustrated in this video.

  • @musedegefe5906
    @musedegefe5906 5 หลายเดือนก่อน

    Excellent video!