Blog posts

I'm now working to resolve this issue when a bracket was fail to withstand the constant loading of 500N during cyclic test. It was reported fail at ~3800 cycles which was less than target.

Rgds.

Two PhD RA Positions: US Citizen or Permanent Residents Only

Submitted by jeonghokim on Tue, 01/27/2015 - 21:39

job

Graduate Research Assistant Positions

Graduate Research Assistant Positions are available for U.S. citizens or U.S. permanent residents who have completed a Master of Science (M.S.) degree in Civil Engineering or a related field and wish to pursue Ph.D. degree in Civil Engineering from Fall 2015. We will also consider outstanding students who have completed their B.S. degree and want to directly pursue their Ph.D. degree starting.

Micromechanics Simulation Challenge - Level 1

Submitted by Wenbin Yu on Tue, 01/27/2015 - 20:55

micromechanics

computer software

For the purpose of establishing the best practice for homogenization and dehomogenization needed in composites design and manufacturing, cdmHUB launches the Micromechanics Simulation Challenge. After incoporating comments from academia, industry and commercial software providers, we have finalized the final draft for Level 1 problems, which is attached here with more details can be at https://cdmhub.org/resources/665.

Postdoctoral Position in Computational Mechanics at University of Pittsburgh

Submitted by albertto on Tue, 01/27/2015 - 15:13

job

additive manufacturing

3D printing

Topology optimization

yield criteria

lattice structure

computational homogenization

composite

See attachement.

How to model random dispersion of MWCNTs in epoxy resin

Submitted by Vinod Kumar K on Tue, 01/27/2015 - 11:49

Dear All,

I want to start some research on the Multi walled Carbon nano - tubes/ Epoxy resin.

In the begining I need to model a random dispersion of MWCNTs in epoxy resin in the ABAQUS.

Can any help me in this problem.

Thank you in advance.

Symposium on Nanoengineered composites: 15-17.7.2015, Denmark

Submitted by Leon Mishnaevsky on Tue, 01/27/2015 - 10:25

conference

Nanocomposites; Composites; Modelling;

International Symposium on

NANOENGINEERED COMPOSITES: Properties, modelling and applications

July 15-17, 2015, Roskilde, Denmark

Concrete block under thermal load

Submitted by apurv_vaidya on Tue, 01/27/2015 - 10:13

Dear all,

I am new to abaqus and trying to analyze the thermal analysis on a concrete block of size 0.15 x 0.15 x 0.15.

The surface heat flux of magnitude 100 that I am giving is only from one side and NOT having any boundary conditions.

If I choose steady state condition then I get an error as "Time increment required is less than the minimum specified".

Also I cannot define time period. I want the nodal temperature of concrete subjected to thermal load from one side for 24 hours of heating at 100^oC.

Please help!

Using different types of stress rates in ABAQUS UMAT

Submitted by afallah on Tue, 01/27/2015 - 08:23

Dear friends,

As you maybe know, ABAQUS uses the Jaumann or Green-Naghdi stress rate for large deformation analysis. Recently i found some refrences that show these stress rates leads to major errors for some special cases. Now my question is, how can I change the stress rate used in analysis process using ABAQUS UMAT?