In this paper, the finite volume method is developed to analyze coupled dynamic problems of nonlinear thermoelasticity. The major focus is given to the description of martensitic phase transformations essential in the modelling of shape memory alloys. Computational experiments are carried out to study the thermo-mechanical wave interactions in a shape memory alloy rod, and a patch. Both mechani...

Abstract Nickel-based alloys are often selected for manufacturing components operating in extreme conditions such as high-temperature thermo-mechanical cyclic loadings because of their good corrosion and high temperature resistance. This is, instance, the case solar receivers where material undergoes daily cycles going from ambient to approximately 700 °C. To predict behavior under this type co...

A finite element model of the rat’s head was developed to improve the knowledge on traumatic brain injuries. A parametric study was conducted on the mechanical characteristics of its anatomical components. A correlation was then established between observed injuries on one hand and intracranial stresses on the other. This result is mainly based on experimental well-defined impacts that generate...

walled carbon nanotube inclusions Sivasankaran Harish, Kei Ishikawa, Shohei Chiashi, Junichiro Shiomi, Shigeo Maruyama Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. We report large contrasts in the thermal conductivity enhancement of phase change alkanes in liquid and solid state with single walled carbon nanotube (SWCNT) inclusion...

In this paper, the discrete element method (DEM) approach has been applied to study mechanical behaviors of ceramic breeder ebble beds. Directly simulating the contact state of each individual particle by the physically based interaction laws, the DEM umerical program is capable of predicting the mechanical behaviors of non-standard packing structures. The program can also rovide the data to tr...

An elastoviscoplastic three-dimensional model is proposed in order to predict the response of brake discs for a High Speed Train (T.G.V.), which are subjected simultaneously to mechanical and thermal loadings. This elastoviscoplastic law is based on the internal thermodynamic variables and takes into account the non-linear kinematic and isotropic hardening with plastic strain memory effect. A m...