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how to extract the story mass and story displacement in Abaqus?

Submitted by meshee on

hello, everybody 



    I've made a 3D multi-story frame and shear-wall model in Abaqus. So far, I wanna get the equivalent story mass, story stiffness and story modal displacement. how to extract the story mass and story displacement in Abaqus?   or how to make an equivalent multi-mass point system from original 3D multi-story model? 



Thanks in advance 



Best Regards, 

Shelton 

How to plot Fracture toughness vs Crack length in Abaqus for Delamination problem

Submitted by charls2vimal on

I've modelled a DCB specimen and applied Boundary conditions and load... I followed the same procedures given in abaqus documentation... As expected the crack initiates and propagates along the interface... I can get the Resultant force vs displacement plot from the analysis.. But i dont know how to plot the fracture toughness vs crack length plot in ABAQUS..

Please help me... Your suggestion would really help me a lot..

B.C for 3D simply supported beam in ansys with SOLID95 element

Submitted by vn.nguyen on

Hi,

I am modeling a 3D simply supported beam in ansys using a SOLID95
element. In this case, how should I give
the B.C.s? Should I apply B.C.s to

1) the mid nodes on the edge of beam? or

2) to the entire edge? or

3)  just to the bottom nodes?

according to me, I have tried to use the various B.C case, but the
results are very different even though the nodes number taken in account
change slightly, and for all case, the result is not satisfactory with
my analytical solution. plz help.

 Thanks in avance!

Abaqus single cpu and multiple cpus

Submitted by lizheng619 on
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Dear all,

        I am running a abaqus job to simulate the failure mechanism of a pile-foundation system. The material used is mohr-coulomb soil. I found that if I use multiple cpus for the calculation, I got different results each time (at the step which does not converge). However, If I just use single cpu, there is no such kind of problem, each time I got the same results.

         Anyone else has this experiences before? I am quite confused.

 

 Zheng Li

ABAQUS set a limit time for the esecution of a job

Submitted by mbpro15p on
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hello,

 

as title says, does anyone knows how to fix a limit to the time that an abaqus job takes to be calculated.

 

this is because i am running several jobs sequentially, and i want to set that for instance if some job takes too much time, just stop it and go to the next one.

 

thank you a lot. 

Abaqus UGENS/UMAT for composites damage

Submitted by ebarbero on
A discrete damage mechanics (DDM) model is now available as a UGENS/UMAT implementation for Abaqus/standard. This is an analytic constitutive model for laminates composites, based on discrete fracture mechanics. It is capable of predicting matrix crack initiation and crack density evolution using just two parameters--the critical energy release rates (ERR) in opening mode I and shear mode II. A methodology is available to determine those (invariant) material properties from experiments. 

hashin damage

Submitted by h1a9d9i0 on

hi.

Im modeling a composite with hashin damage.

but I dont know what to insert to the hashin damage

requirements .for example I dont know what to insert to the

 fiber tensile strength or   fiber compressive strength and so on. please help me