research

An early history of mechanical testing of/using MEMS

Submitted by Roberto Ballarini on Wed, 07/24/2013 - 16:35

I wrote this report a while back, and a limited printing was circulated by Wright Pattterson Air Force Base. I found a scanned version that I attach for your interest.

How to model the mechanical Scribing in ANSYS

Submitted by Shashi Bahl on Mon, 07/22/2013 - 11:36

research

thin film solar cells

I have to model the mechanical scribing process in ANSYS.

kindly let me know how to do it?

Regards, Shashi

Focused Section on Mechanics of Carbon Nanomaterials

Submitted by Yonggang Huang on Fri, 07/19/2013 - 20:05

research

Carbon nanomaterials (carbon nanotubes, graphene, …) have received significant attention from the academia and industry in the past two decades owing to their superior material properties. Mechanicians have played a major role in the fundamental understanding of the mechanical properties of carbon nanomaterials, and in their wide-range applications.

An environmentally friendly battery made from wood

Submitted by Teng Li on Thu, 07/18/2013 - 18:33

research

wood

Teng Li Group Research

Na-ion battery

grid energy storage

Nano Letters, 13 (7), 3093–3100 (2013).

Unknown error with abaqus 6.122 with user subroutines

Submitted by mannesantana on Mon, 07/15/2013 - 20:15

research

I have been trying to run an analysis with the user subrouting UMAT in abaqus 6.12. I have microsoft visual studio 10.0.40219.1 and fortran 10.1.034. I think I linked the compiler correctly, and the path variable should have all the necessary adresses. However, when I run the verification cpp_make, fortran_make, and std_user show errors. here is the fortran_make.txt file:

Analysis time problem when combining UEL and UMAT

Submitted by Roche on Mon, 07/15/2013 - 16:55

research

Hi,

I have a model which includes damage propagation,heat transfer and effect of humidity. For damage analysis I'm using a UEL, and for the rest I'm doing a coupled thermal- displacement(CTD) analysis using UMAT and UEXPAN. The analysis starts with applying a load of humidity and temperature from 0 to a final value, and then in STEP2 I apply a cyclic load in a same range.