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Hi,

I am simulating failure of concrete in tension and compression on a concrete representative element volume. I have modeled mortar matrix and aggregate (inclusion) separately i.e my model consists of two material and assumed them as perfectly bonded. My question is, if I add interface zone between matrix and inclusion how will it effect my overall failre or can I neglect inerface.

With Warm Regards

Gouse

Hi,

I want to know what is the effect of coarse aggregate size or size of the aggregate on compressive strength of concrete.And similarly what is effect of aggregate size on tensile strength of concrete.

I have few papers which contradicts each other so I am confused.

With Warm Regards

Gouse

Dear All,

 I have a problem simulating earthquake effect on a very simple structure. The structure is a 2 story steel plan frame structure. with lumped mass at its corners.

I am applying the Northbridge earthquake on it but I am getting very strange results.

 I am applying the Material density beside the lumped mass at corners.

 Both, eignvalues and frequencies and also responses are not correct.

Hello;

I have a problem of extracting structural damping coefficient of a sandwich plate type steel / polymer / steel. I have already entered the shear modulus of the polymer in ABAQUS G = G0 (iw) / (1 + iw) With the: *viscoelastic, frequency=TABULAR

I do not know if my approach is right?

My inp file has this form:

*NODE, NSET=ALLNODES, SYSTEM=R

..

*ELEMENT, TYPE=S4      , ELSET=THIN-SHELL1

..

*SHELL GENERAL SECTION,

 ELSET=THIN-SHELL1 ,

Hello,

Is there anyway i can calculate and plot the tangential stress in Abaqus directly. I know we could do it manually in sense , calculate s11, s22, s12 and then calculate tangential stress in excel. I would like to calculate and plot tangential stress around the circular cutout shown in the document attached. 

I would be really glad if someone could give me tips on this. 

Thank you,

V Manneth

Dear All

 Does anybody have this paper?.

On some variational principles in the theory of elasticity and the theory of plasticity

HC Hu - Scientia Sinica, 1955

Thank you

 Sreekanth

Dear all,

in order to access the last value of my state variable SDV at specific integration points and specific elements, I need to write the SDVs into .fil file in order to be able to read them inside my UMAT at each time increment.

I use the subroutine DBFILE to read the .fil file; the keyword to access the state variables is "5", but I don't know how I can go to the value which has been already written to the current integration point.

Could anyboby help?

Thanking in anticipation,

hadi