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EM 388F Term Paper: Theory and analysis tech for the use of a DCB specimen for determining the toughness of PC-3 Prostate Cancer

Submitted by justin.babcock on
fracture mechanics
University of Texas at Austin
term paper
EM 388F
Spring 2008
Double Cantilever Beam
DCB
PC-3
Prostate Cancer
Toughness experiment

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

Deformation and Fracture of Functional Ferromagetics

Submitted by Xue Feng on

Prof.D.N. Fang and his collaborators (Prof. Y.P. Wan, Prof. X. Feng and Prof. A.K. Soh) work on the functional materials, such as ferroelectric and ferromagnetic materials. Recently, he published a review article which presents an overview of recent progress on magnetomechanical deformation and fracture of ferromagnetic materials.

iMechanica server error

Submitted by Anonymous (not verified) on

Many of you must have noticed that the iMechanica server is unstable today.  Apparently posts that have comments are inaccessible.  The IT office has been altered, but today is Saturday.  Meanwhile you can read comments by clicking "comments at a glance" on the right side of iMechanica.  Toddler iMechanica is having growing pain.  She apologizes for your inconvenience. 

Position Available for Post Doc on Computational Bio-Nanomechanics

Submitted by aerjiliya on
job

Job Description :Postdoctoral fellow position is available in Computational Biomechanics/Nanotechnology at University of Texas at Arlington. The candidate is expected to have a good education and research background in numerical modeling (Fortran/C++/Matlab). The candidate will use numerical methods to study biophysical phenomena in cells and biomolecules and micro/nanofluidic problems in BioMEMS/NEMS, from continuum to nanoscale. Candidate familiar with fluid/solid mechanics and atomistic simulation are highly encouraged to apply. If you are interested, please contact Dr.

How to deal with the singularity in calculation of a closed shell of revolution?

Submitted by Hongping Hu on
research

I want to numerical calculate vibration of a closed shell of revolution with double layers. There exists Coefficient cot(θ) in the governing equation, where θ is angle between the revolving axle and normal line. Therefore, cot(θ) will incline to infinity when θ is close to zero for the vertex point on the revolving axle. How to deal with the singularity? Can you give me some advices or reference article? Thanks.

Finite Width Effect of Thin Films Buckling on Compliant Substrate

Submitted by Hanqing Jiang on
research

Buckling of stiff thin films on compliant substrates has many important applications ranging from stretchable electronics to precision metrology and sensors.  John Hutchinson, Zhiggang Suo, Rui Huang, Xi Chen et al. have developed nice theories for stiff thin film buckling on soft substrate.

Yonggang Huang was awarded the Guggenheim Fellowship in 2008

Submitted by Hanqing Jiang on
mechanician
Guggenheim Fellowship

Prof. Yonggang Huang of Northwestern University was awarded the Guggenheim Fellowship in 2008. Today, the president of the John Simon Guggenheim Memorial Foundation, Edward Hirsch announced that 190 new fellowships were choosen from more than 2,600 applicants (news ). Yonggang won the competition because of his achievement on atomistic-based continuum theory for nanomaterials. A complete list is here

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