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The surface effect on the strain energy release rate of buckling delamination in thin film–substrate systems

Submitted by tongqing.lu on

Gurtin–Murdoch continuum surface elasticity model is employed to study the buckling

delamination of ultra thin film–substrate system. The effects of surface deformation and

residual stress on the large deflection of ultra thin film are considered in analysis. A

concept of effective bending rigidity (EBR) for ultra thin plate is proposed on the basis of

Gurtin–Murdoch continuum theory and the principle of minimum potential energy. The

governing equations with EBR are formally consistent with the classical plate theory,

One postdoctoral position in advanced concrete materials starting May 2012

Submitted by Mijia Yang on

Dear All,

I am looking for one postdoctor to work on advanced concrete materials and modeling. The desired candidates will have a solid knowledge on concrete materials and mechanics, and are familiar with advanced modeling of hydration, water or chemical transfer in concrete. Extra considerations will be given to candidates with some experimental experiences on concrete microstructures and material characterization.

PhDs/Postdocs in modeling composite structures/materials

Submitted by Wenbin Yu on

Dear All,



I am looking for highly motivated PhDs/PostDocs to join my group to work on various aspects of efficient high-fidelity modeling of composite structures/materials, mainly related with VABS/VAPAS/VAMUCH. The basic qualifications are: basic training in solid mechanics and composite materials, excellent math and programming skills, and good English communication skills. Please let me know if you are interested or if you know somebody is interested.




Wenbin Yu

J integral variation through thickness in tubes with through-wall circumferential crack, calculated with Abaqus/CAE

Submitted by Marcos Bergant on

Dear friends: I am a PhD candidate studying fracture problems in tubes. I am doing J integral calculations in Abaqus, for tubes with through-wall circumferential cracks subjected to tensile and bending loads. I am using quadratic 20 nodes isoparametric elements with reduced integration (C3D20R), ranging from two to five elements through the wall thickness mesh.

career as computational seismologist

Submitted by p_azizi on

Dear Mechanicians,

I have got an offer to do PhD in computational seismology in a very good university in Europe, however, I have no idea what sort of career I should expect after getting my PhD in this field. I got my BSc and MSc in mechanical engineering but have never worked in the field of geophysics and seismology. Therefore I am hesitating whether to take the offer or not. 

Strain rate values

Submitted by tonesthomas on

Can anyone guide me in clearing this doubt? I would like to get the values of normalized flow stresses Vs Strain rate for 304 L stainless steel and Ti-6Al-4V. This values will be used as an input for simulating fan blade-out event. This values will be used since this process involves higher velocities, higher deformations and it occurs in less time.