Skip to main content

Mechanics of growth and rupture of abdominal aortic aneurysm

Submitted by Konstantin Volokh on

We present a coupled mathematical model of growth and failure of the abdominal aortic aneurysm (AAA). The failure portion of the model is based on the constitutive theory of softening hyperelasticity where the classical hyperelastic law is enhanced with a new constant indicating the maximum energy that an infinitesimal material volume can accumulate without failure. The new constant controls material failure and it can be interpreted as the average energy of molecular bonds from the microstructural standpoint.

Post-buckling and Snap-through Behavior of Inclined Slender Beams

Submitted by J Zhao on

In MEMS fields, a need arises in engineering practice to predict accurately the nonlinear response of slender post-buckling beams, especially the nonlinear transverse stiffness. The bistability of the post-buckling beams is excellent in reducing power consumption of micro-devices or micro-systems. However, the major difficulty in analyzing the post-buckling and snap-through response is the intractability of the geometric nonlinear control equations of large deflection beams.

PhD position in the area of wood fibre composites

Submitted by Bent F. Sørensen on

The Materials Research Department at Risø National Laboratory for Sustainable Energy, Technical University of Denmark, is seeking a PhD student within the field of advanced fibre composites. The PhD position will aim at increasing the fundamental knowledge of wood fibres and their behaviour as reinforcements in composite materials studying e.g. wood fibre structure and mechanical and hygroscopic properties e.g. by micromechanical modelling and advanced testing.