What are the parameters max principal stress and fracture energy in analysis XFEM with Abaqus?

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Which element is usable for simulating a pre-twisted blade in ansys?

I want to model a twisted blade in ansys and nonlinear dynamic analyses, but solid element is not match with beam element and they are very different result. Now I don't know I select which...

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How can i writing a paper for ISI journals?

As you can see, my English language is poor specially in writing. i want writing a paper. i writed that fully but i have so wrongs in writing. are there any software that help me? what can i do...

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why plastic zone in Abaqus is low?

whenisimulate my CT specimen in Abaquse with Elastic-Plastic propertic my plastic zone in crack tip is lower than experimentall. i obtaine true stress and true strain from tensile test with this...

06 July 2014 6,019 6 View

Why can my XFEM method in Abaqus not predict crack grows?

When I use the XFEM method in Abaqus to predict fracture of my materials, Abaqus gives good results about crack initiate and maximum load, but it can't predict crack grows. In Abaqus, after...

06 July 2014 4,076 19 View

How can I find the coefficient for fitting a curve in MATLAB?

I fit my data in MATLAB with a function and I can see the results and coefficients in the command window. I need this coefficient in order to continue with my codes, but I can't input this...

05 June 2014 827 10 View

Why is this error in abaqus XFEM method: too many attempts for this increment?

I simulate crack grows for a specimen in abaqus and use XFEM method. When my crack initiates and grows a bit and before full break the specimen I faced this error: too many attempt for this increment.

02 March 2014 4,078 31 View

Does anyone have experience with damage when using XEFM methods?

When I simulate my specimen with XFEM method I have faced an increment error. But when I decrease displacement or decrease the element of mesh the error disappears. I don't want to decrease the...

01 February 2014 2,312 1 View

Can I determine fracture toughness of a material with Abaqus?

I want use the data of tensile test of a material to determine fracture toughness of a material. What information do I need? Is it possible?

01 February 2014 7,474 12 View

How much crack should be grown in multi specimen method?

I want to fracture test RTPMMA. I use the elastic plastic method for determin-integral. Do you know how much I let the crack grow?

01 February 2014 330 0 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

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

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

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