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Quantitative/Qualitative Measurement of local strain analysng the microstructure

Submitted by Bharadwaj on
Measurement of local strain analysng the microstructure

I've performed a fatigue experiment on aluminium.I want to observe the microstructure and make a qualitative/ quantitative analysis of strains based on observation the grains.Is there any technique that would help me achieve the objective?Could someone help me on this?

Random strength (weibull distribution) input at each integration point in Abaqus

Submitted by prathyush963 on

Hello,

 I am trying to input random strength (following weibull distribution) at each integration point. I want to use either USDFLD (preferably) or UMAT subroutines in Abaqus. Please help me in this regards. Any references/suggestions will be great.

  

Hoffman's plasticity UMAT

Submitted by Aleksander Marek on

Hi everybody, First of all I would like to introduce myself, as a new user here. My name is Aleksander Marek and I'm student (3rd year of 1st degree) at Poznan University of Technology in Poland. I'm working on UMAT that accounts for Hoffman Plasticity and all of its simpler forms (Hill,

ANSYS , LS-DYNA: simulation of full penetration impact

Submitted by yousof.mohandes on
impact
composite
ANSYS LS-DYNA
Is
there any one here who could help me through the step-by-step creating and analyzing
a 3D simulation of ballistic, full penetration impact of a steel, rigid
projectile into the 3D composite plate?



note1: as i know,
available HASHIN damage model in ABAQUS isn't an appropriate tool to do
that. because it has an important restriction that confined you in the
"2D" damage analysis of composites and using 2D planar elements only.



note2: so, my preferred software is LS-DYNA or ANSYS-APDL now.

International Workshop and School  New Methods of Numerical Simulation and Measurement in Tribology Sandanski, Bulgaria, October

Submitted by Mike Ciavarella on

Dear Mechanician

 

please find enclosed the announcement of the Workshop in Sandanski.



One can find it also on the cite:http://wp1119223.server-he.de/Sandanski2013.html



Please fill the registration form (enclosed)

 

where to find the datum of plastic-damage model of concrete??

Submitted by Jing_Yang on
research
concrete plastic-damage model abaqus

Dear all,

Where can we find the datum of plastc and damage evolution in uniaxial case for concrete of some specfic strength? It seems that datum associated with plasticity or damage can not be found in concrete code. But when you use the damaged plasticity model integrated in ABAQUS, these datum are indispensible.

Abaqus works well with fortran90????

Submitted by Jing_Yang on
software
abaqus umat f90

I know this  question is a not new one and it has been posted before. But these posts seems not completely answer this question. I tested  for77 and for90 codes for isotropic elasticity respectively. The analysis based on for77 codes runs successfully and the for90 codes can be compiled successfully.  However, the analysis based on for90 codes shows the following warning:

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