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Viscoplasticity (Anand's Model in ABAQUS CAE 6.8)

Submitted by luvsharma11 on
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viscoplasticity
ABAQUS/CAE

Hi,

I am trying to model a double lap shear in ABAQUS. In Abaqus version
6.7 and above, Anand's model can be invoked by editing keywords and
adding necessary data lines  in keyword editor. I am facing some
prblems in running the job analysis and since I am new to working with
ABAQUS, I am not able to solve the problem. The problem is, when I
submit the job the status keeps on showing "Running" without showing
any error or warnings. I have tried all both coarse and finner meshes
so i think there is no problem with convergence. 

I have quesstion in abaqus.I want to have elastic and plastic part in material curve

Submitted by sara.behforutan on
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I have quesstion in abaqus.I want to have elastic and plastic part in material curve and have ultimate stress and when the stress higher than ultimate stess,that material fail. How could I do this? Please help me.
 

Elastic material in abaqus

Submitted by HussamNasreddin on
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Materials Forum
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Free Tags
concrete
Abaqus; Strain; Umat;

Dear all,

I am using Abaqus to model concrete as an elastic material. However, the failure criteria available in the software is only for 2D elements and are dominated by a maximum normal stress (fail stress option) or normal strain (fail strain option) value.

I was wondering if anyone would know how to model concrete as an elastic material following "theory of elasticity" and failing by a maximum TENSILE strain value in any of the three directions given a material's point.

It would also be perfect if deleting elemnts option can be used in this case.

Lithium-assisted plastic deformation of silicon electrodes in lithium-ion batteries: a first-principles theoretical study

Submitted by Kejie Zhao on
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suo group research
Plasticity
lithium-ion battery

Silicon can host a large amount of lithium, making it a promising electrode for high-capacity lithium-ion batteries.  Recent experiments indicate that silicon experiences large plastic deformation upon Li absorption, which can significantly decrease the stresses induced by lithiation and thus mitigate fracture failure of electrodes. These issues become especially relevant in nanostructured electrodes with confined geometries.

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