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Questions tagged [abaqus]

70 questions
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How do I model a longitudinal tensile strain in a laminate composite using Abaqus software?

I want to be able to measure the strain response in a material composed of 2 lamina, bottom one (0) top one half (0) half (90), and see the differences in the unidirectional versus the bidirectional area. I've been trying with the Lamina function,…
LDPC
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What are exact location of Integration Points in STRI3 element in ABAQUS?

Introduction I have a file with .rpt extension from ABAQUS which is output of a model. This .rpt contains stresses of elements and displacements of nodes in plane text format. There is an item with this file which i was not able to find in ABAQUS…
epsi1on
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What is the difference between implicit and explicit analysis in ABAQUS?

How can I choose between Implicit or Explicit Analysis in ABAQUS for a simple rectangular composite structure with 2 layers of unidirectional lamina? I am trying to do a linear-static analysis to capture the tensile strain for the specimen.
Willis
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How quadrilateral elements represented in most FEA solvers for structural mechanics problems?

How quadrilateral elements represented in most FEA solvers for structural mechanics problems? I know that Nastran-95 represent quadrilaterals for membrane and bending elements as a set of triangles: At the same time there are a lot of literature…
Евгений Павлов
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Abaqus Failure for I-Beam Section in Major direction only

For my 4th year dissertation in Civil Engineering I've got to investigate the difference between BS5950, Eurocode 3 and ABAQUS failures. The only thing is, in the BS5950 and Eurocode 3 the failure can only include Major OR Minor axis which is what I…
Alex
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How to join two beams rigidly?

Hi I am making a beam model using Abaqus. There are two beams created. I wanted to join two beams rigidly in the connection to transfer moments between beams. However, I do not know what connector or constraint should be used to complete such a…
HSChan
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How to calculate residual strength of a corroded structure from their stress values?

Currently, I have an actual entire corroded bridge model in the FEM analysis in Abaqus I want to estimate the residual strength of this bridge due to corrosion from the output results in the Abaqus, I can have stress and strain values but I was…
Cindy.Karina9
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How does Abaqus calculate reaction force?

I wrote a UEL for one element and compared to a reference UEL (FEM), where the results agreed satisfactorily, except the reaction force. The stress, strain, strain energy all were pretty accurate. I am unable to understand this, how does Abaqus…
Schneider
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ABAQUS Analysis: Difference between assigning Section as Plane stress/strain vs. Element type?

In ABAQUS, there are multiple ways to specif your part is in plane stress/strain. 1. When assigning the section, one can specify that it is a generalized plane strain section. 2. When assigning the section, one can specify that the section is…
User2341
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Abaqus Milling Simulation

I'm creating a simulation in abaqus of a endmill removing material from and aluminium plate. The simulation is almost working, but only the surface level element are being removed from the plate. The interior elements are not interacting with the…
Phil Young
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How the amount of bolt's preload in a single lap joint can change the natural frequencies?

Few days ago someone told me that the amount of bolt's preload in a single lap joint can influence the natural frequency of the beam. So to test that out I modeled a 3D single lap joint in ABAQUS and defined bolt load for it. I realized that the…
Omid Fadaei
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FRF based material constant optimization

I need advice on how to optimize a finite element model of a transversely isotropic material. I have modeled the material with 5 nominal moduli in Abaqus and performed an eigenvalue extraction. Additionally I have done a modal analysis of the…
Jeff Gist
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Is there a specific way to simulate porous structures?

I tried to simulate an axial compression test for a lattice (porous) structure but It takes too much time and it doesn't give me the right answer (when I compare with experimental results). So, I was wondering if there are another methods to…
Goli
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Abaqus vcct fatigue consistently underpredicts disbond growth rate

I'm modelling a fatigue disbond using abaqus. I've understood the disbond growth rate is equal to: $$\dfrac{\partial a}{\partial N} = c_3 \Delta G^{c_4}$$ I've set up an analysis with MMB specimen. I've set $c_3 = 5.59\times 10^{-20}$ and $c_4 =…
Nathan
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Abaqus XFEM crack propagation

I'm trying to run a simulation about crack progation using XFEM. In particular, I have a 2D case where I'm representing a composite material composed of matrix plus a single fiber. I would like to underline the crack propagation path derived by the…
federico
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