Blog posts
About ABAQUS UMAT
Hi
I am working on probailistic modeling of damages in composite materials. I have my own developed mathematical model for calculating damage probability. Now I am trying to use this model in ABAQUS to see the effect of damages with a certain probability. Please kindly let me know if there is any reference code or tutorial for UMAT where I can apply the damages with different probabilities.
Thanks in Advance
Rezwanur Rahman
The University of Alabama
USA
EM388F Term Paper: Fracture of Orthotropic Materials under Mixed Mode Loading
The objective of this paper is to analyze the fracture of orthotropic materials, with emphasis on wood.
The effect of porosity on the stiffness and fracture energy of brittle organosilicates
Integrating porous low-permittivity dielectrics into Cu metallization is one of the strategies to reduce power consumption, signal propagation delays, and crosstalk between interconnects for the next generation of integrated circuits. However, the porosity and pore structure of these low-k dielectric materials also strongly affects other important material properties besides their dielectric constant.
"Experimental Multi-Scale Mechanics" Symposium for SES 2008
A symposium on Experimental Multi-Scale Mechanics is being organized for the 2008 SES conference at the University of Illinois at Urbana-Champaign from October 12th through October 15th. The conference website is located at http://ses2008.mechse.uiuc.edu/
To submit abstracts to this symposium please use the abstract submission form and select the symposium title. The deadline for abstract submissions is April 30, 2008.
iMechanica back on service
Dear fellow iMechanicians:
After some technical problems over the past weekend, iMechanica is now back on full service. We apologize for any inconvenience this may cause and thank for your patience.
We are particularly grateful to Ms. Lesley Lam in OIT of Harvard School of Engineering and Applied Sciences for her prompt fix of the problem.
EM 388F Term Paper: Theory and analysis tech for the use of a DCB specimen for determining the toughness of PC-3 Prostate Cancer
A double cantilever beam (DCB)
specimen is created by affixing the two halves together using a bi-layer of
PC-3 prostate cancer cells. The specimen is pinned at a bottom corner, and the
upper corner on the same end is displaced with the force-displacement profile
being recorded. This upper corner is displaced until the crack, a portion of
the specimen where cell grown has been selectively inhibited, propagates
through the cell layer. The critical value of force at which the crack
propagates through the cell layer is used, in conjunction with the initial
crack length, to determine the toughness via the compliance-energy method (Ripling, et al. 1971). A method for performing a FE analysis of the