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09 October 2019 4,700 2 View

Why different meshes give total different results in Abaqus model?

I am studying a 2D model for ideal plastic case.I am confused why different element size gives different results,I know that more elements give better results but at least the results should be...

08 September 2019 6,307 6 View

How to deal with locality problems in ccNUMA architectures?

I'm studying Locality optimizations on ccNUMA architecture.I've started reading the book Introduction to high performance computing for scientists and engineers but there is a something that i...

05 June 2019 9,411 1 View

How to derive the shape functions for a serenditipity 2D element?

How to derive shape functions from a serendipity 2d element with nodes placed on arbitrary positions?

02 March 2019 8,359 3 View

Why full integration FE elements are over stiff?

Why full integration FE elements are over stiff desping reduced ones?

01 February 2019 5,386 4 View

Does the order of shape functions affect the continuity of stress field in linear fem?

If we use higher order shape functions (for example in a truss element) does this increase the continuity of stress field or the stress will remain discontinuous?

01 February 2019 3,837 4 View

Does hourglass instabilities exists in a Q4 elements with 2 Gaus points?

Does hourglass instabilities exists in a Q4 elements with reduce integration using 2 Gaus points?

01 February 2019 3,994 8 View

How to increase continuity in FEM?

My question is how to increase the continuity of displacements in case of truss or plane elements. For example from C0 continuity to C1.Is this possible?

31 December 2018 302 5 View

How to solve thermomechanical problem?

I am new in abaqus and I have a problem in order to solve a thermomechanical problem.Can you please tell how to define the refference temperature in my model? I tried to but I think my results...

31 December 2018 8,283 8 View

Why Abaqus uses only Serendipity elements for meshing?

As far as I know(correct me if I am wrong) abaqus uses only serendipity elements.Why is this happen?Can I use lagrange elements too? Also can you please tell the cases when serendipity elements...

31 December 2018 5,666 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

High aspect ratio hexahedral mesh optimization solver?

I am interested in evaluating mesh optimization solvers that converge to high aspect ratio unstructured hexahedral grids. In other words, I am interested in a solver that optimizes warpage,...

26 February 2021 7,279 2 View