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DISP.FOR (ABAQUS). Issues with advancement above KSTEP = 1

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Fortran UDF DISP.FOR

Hi

I am trying to use the user-defined subroutine functionality in ABAQUS 6.11. I have set up a simple test case of an object (cube) being displaced harmonically in time (DISP.FOR, Standard Implicit). The subroutine DISP.FOR is shown at the end of the post.

define underwater explosion by incident wave

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hi

i 've modeled a submerged cylinder subjected to underwater explosion.

 

there is an example of this problem in Abaqus Example Documentation.

 

 "9.1.3 RESPONSE OF A SUBMERGED CYLINDER TO AN UNDERWATER EXPLOSION

SHOCK WAVE"

 

i have modeled the problem and analysed  but the U1 Translation Graph for Endcaps is different to original example graph.

 

the velocity of endcaps during explosion is negative , but for my analys its positive !

 

Abaqus fe-safe

Submitted by Hesham Elkanani on
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I'm using Abaqus in analysis of random vibration fatigue. I linked abaqus with fe-safe to calculate the fatigue life. Fe-safe didn't recognize the random load comming from Abaqus correctly, althghou it already recognize the cyclic(normal) load crrectly in one of the tutorial's attached example.

Do any body know how to solve this issue?

Abaqus fe-safe

Submitted by Hesham Elkanani on
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I'm using Abaqus in analysis of random vibration fatigue. I linked abaqus with fe-safe to calculate the fatigue life. Fe-safe didn't recognize the random load comming from Abaqus correctly, althghou it already recognize the cyclic(normal) load crrectly in one of the tutorial's attached example.

Do any body know how to solve this issue?

porous solid modeling in abaqus

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Hello every 1
I must model porous materials in abaqus!!but really i am confused how to create these complex shapes :p:p:p
voids in my models are not arranged but i thinks that i have to model them regular,how ever i need to simulate an configure like bone structure(specially that some wheres in model have more voids or less some thing like bone)
by the way my models are 3D and thickness of trabeculae|(pores wall) in configure is not constant(just like bone!!):cool:

thanksto all:)

abaqus modeling question

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abaqus modeling

Hi
dear.

I
have a question about  abaqus  soil modeling

In
soil abaqus modeling I want know that when I assign a plastic properties(mechanical
plasticity) such as mohr moulomb,in 
cohesion tab we see two data that I don’t know what data I can insert  there.two parameters are  : 
cohesion yield stress   and     abs plastic strain.

Plz
 give me a true data parameters.and  friction angle and dilation angle about one
soil

hi dear

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question about abaqus

Hi
dear.

I
have a question about  abaqus  soil modeling

In
soil abaqus modeling I want know that when I assign a plastic properties(mechanical
plasticity) such as mohr moulomb,in 
cohesion tab we see two data that I don’t know what data I can insert  there.two parameters are  : 
cohesion yield stress   and     abs plastic strain.

Plz
 give me a true data parameters.and  friction angle and dilation angle about one
soil

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