How can I link the programs to write a subroutine for ABAQUS 6-14 in windows 64 bit?

11 December 2015 5,550 9 View

I wonder how ABAQUS can predict the Necking phenomenon using Stress wave propagation theorem?

11 December 2014 1,503 9 View

How can I calculate the thickness strain in the plane stress using VUMAT?

I have written a simple plane stress code in the VUMAT format but unfortunately the third strain (StrainInc(k,3)) is zero and I need to calculate it by myself. the problem is that, by the...

08 September 2014 7,274 2 View

Does anybody have a brief but clear reference or note for shell elements?

I need to know the exact formulation for quadratic shell elements, but can not find very simply explained references. All of them are complicated and confusing.

04 May 2014 763 0 View

Can we ignore C13, C23,... for plane stress conditions using shell elements?

Can we ignore C13, C23,... parameters and anything related to the third axis of the orthotropic material in the Hook's law implementing the model to the FEM using shell elements? There are some...

03 April 2014 2,483 1 View

What is the simplest Combined Hardening Model that can be implemented in numerical codes?

I am trying to compare combined hardening with other types of the hardening, but don't want to struggle with the hard models like Yashida. Can anybody give an opinion? Thanks.

01 February 2014 8,370 3 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 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

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

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 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

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How can I verify my centrifugal fan design for electric motor cooling?

I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...

23 February 2021 2,390 3 View