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Vuhard

Submitted by raushan on
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Johnson Cook Plasticity Model

hello

i am using modified JC model for the simulation of segmented chip formation in machining of Ti64 alloy and i wrote a VUHARD subroutine for that,but two problem arises,

1.the simulation stops at higher value of frictional co-efficient and

2.the feed force is under predicted

since i didn't use dyieldDeqps,is it necessary?

plz help!

thanx a ton in advance!!

Do you care about the impact factor of the journal when you submit your article??

Submitted by yp on
research
Journal impact factor

just a friendly question to all of you....

what is your opinion on the journal impact factor...

i personally think is very superficial and skin deep beauty. but i want to know your opinion.

thanks 

About Intergration Points in Eulerian Element (pls help)

Submitted by sujan on
research

Hi!

Good Day.

Please note that I am doing Coupled Eulerian lagrangian(CEL) Analysis using ABAQUS. In this technique, mesh is fixed and material will flow through fixed mesh.

 My question is:

1.Are integration points for Eulerian elements are fixed with mesh?

2.If it is fixed, how integration point captured the material behavior (as material is moving through fixed mesh)?

Thanks in advance.

Look forward for your kind reply.

Sincerely-

Sujan.

crack-tip stress field

Submitted by s.r.ranganatha on
research

I am a post graduate student in mechanical engineering,
as  a part of curriculum  I am doing my thesis  work on fracture mechanics. My thesis title
is “ STUDIES ON CRACK-TIP STRESS FIELDS IN HOMOGENEOUS SOLIDS”.I  have modeled crack-tip using modified
boundary  layer. I have analysed  S22 (tangential stress) for T/σ=0, T/σ=0.34
&  T/σ=+1.my values are matching with
N.P.O’DOWD and C.F.SHIH for T/σ=0 and T/σ=0.34. But for T/σ=+1 the values of
S22 are coming for less than HRR
values.

jacobian

Submitted by kapornith on
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jacobian in fea

Dear Experts,

I have a bit of confusion regarding jacobian interpretation in finite element analysis.What does Jacobian signifies here? Is this just a transformation matrix between two sets of co-ordinate systems or is it a measure of the deforamtion (streching/shearing) of a mesh element?

Any particlar citation for reference?

Regards

Kapil Sharma

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