Hi!
Can anyone give me some tips within strain based fracture mechanics. My problem is predicting the fatigue life of a gusset speciemen, using strain based FM. I have read some litterature, but have problems on understanding the order of calculating, and methods of solving the equations. If anyone could help me understanding, I would be greatful.
Thanks,
Sean Angus
An electronic device integrates diverse materials, and inevitably contains sharp features, such as interfaces and corners. When the device is subject to thermal and mechanical loads, the corners develop intense stress and are vulnerable sites to initiate failure. This paper analyzes stress fields at corners in flip-chip packages. The stress at a corner is a linear superposition of two modes of singular fields, with one mode being more singular than the other. The amplitudes of the two modes are represented by two stress intensity factors of dissimilar dimensions.
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The NSF Major Research Instrumentation Program (MRI-R²) Recovery and Reinvestment is now posted. This is a good way to build up the needed major research instrumentation
The deadline for proposals will be August 10, 2009.
A link can be found through the page www.nsf.gov/od/oia/programs/mri (preferred to keep abreast of updates) or through the NSF-wide page at http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=5260.
Does anyone knows where I can find any paper discuss the existence of potential functinoal for materials that violate the maximum plastic dissipation principle (due to non-convex yield function and/or non-associately fluw rule)?
Hi,
Geometric non-linearity:Incremental solution
1.I've been reading the book by Crisfield on Non Linear finite element analysis and have just started with the first chapter wherein the author introduces geometric non-linearity.
I have some questions on the incremental (Euler) approach here:
I want to know whether my inetrpretations below are correct:
1)The incremental approach makes use of the tangent stiffness which relates small changes in load to small changes in displacement.
2)The "LOAD" is incremented in steps.
The Department of Mechanical Engineering at the University of Maryland seeks applications for a tenuretrack
faculty position at the Assistant Professor level in the area of Fluid Dynamics. Specifically,
applicants studying both the fundamental and applied aspects of flow physics using computational and/or
Tensor analysis is a very useful tool for continuum mechanics as well as other courses. I wonder which book is best for me.
I have background of anvanced mathematics, linear algebra. The book should be comprehensible.
