I have a beginner's question on DCB testing of polymers. The fracture strength during Mode 1 loading increases with crack length due to the compliance of the test specimen. In other words it becomes harder to induce fracture as the crack length increases.Is my understanding correct?
Thanks
Venkat
I saw this on Science Daily, anyone knows ?
A fully funded PhD position is immediately available in the area of multi-scale modeling of geomaterials within the research project "Failure of cohesive geomaterials: bridging the scales - GEOBRIDGE" at Laboratoire Sols, Solides, Structures - Risques (3S-R), Université Joseph Fourier, Grenoble, France.
Hello All. This is my first blog entry in iMechanica!. This post is about my new paper with Prof. Amine Benzerga entitled "A constitutive model for plastically anisotropic solids with non-spherical voids", accepted for publication in JMPS (URL: http://dx.doi.org/10.1016/j.jmps.2010.03.007 ). In case you are not able to view the online version, a preprint of the paper is attached. This paper should be of interest to anyone working in the ductile fracture area. Your comments and feedback are welcome.
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a new research centre at the Ruhr-University Bochum, Germany. At
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Hi Guys,
Would someone let me know if ABAQUS uses total Lagrange or updated Lagrange formulation to calculate the strain-displacement or the so-called B matrix (ref. K J Bathe finite element procedures chapter 6), or whether or not one can switch from total to updated Lagrange and vice versa in ABAQUS?
best,
hadi
I am working on some boundary integral equation formulation and I am currently stuck with some mathematics. I wish anyone can help me out with this.
I have an anisotropic (sometimes called generalized) biharmonic differential operator which takes the form
L = k11 D1^4 + k12 D1^2 D2^2 + k22 D2^4
where D1 = d/dx, D2 = d/dy, my problem is two dimensional.
I need to find a fundamental solution (Green's function) for this operator, that is
L(u) = -delta
where delta is Dirac delta function.
what are the books/papers that give the basic idea about dislocation-crystal plasticity theory?
Dear Colleagues：
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