1 UTM Razak School of Engineering and Advanced Technology, Universiti Teknologi Malaysia, International Campus, 54100 Kuala Lumpur, Malaysia. 2 Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia. 3 Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia. 4 Faculty of Me...

A fully modularized framework was established to combine isotropic, kinematic, and cross hardening behaviors under non-monotonic loading conditions. Three sets of state variables were defined and applied to consider the effects of, a) loading history, b) twinning and de-twinning and c) different pre-strain. Experiments under two types of nonproportional loading conditions were conducted along d...

In this paper, the cyclic fatigue hysteresis loops of 2D woven SiC/SiC ceramic matrix composites (CMCs) at elevated temperatures in steam have been investigated. The interface slip between fibers and the matrix existing in matrix cracking modes 3 and 5, in which matrix cracking and interface debonding occurred in longitudinal yarns, is considered as the major reason for hysteresis loops of 2D w...

A harbour can be defined as a sheltered part of a body of water that is deep enough to provide anchorage and operative conditions for loading/unloading of ships. It is also a place in which upland activities interface with waterborne activities. Different harbour classification schemes can be devised based on scale, complexity or activity. SCIENTIA MARINA 71(2) June 2007, 223-238, Barcelona (Sp...

This paper investigates the plastic deformation in mono-crystalline silicon under complex loading conditions. With the aid of various characterization techniques, it was found that the mechanism of plasticity in silicon is complex and depends on loading conditions, involving dislocations, phase transformations and chemical reactions. In general, plastic deformation in silicon is the coupled res...

The purpose of this article is to present applications of optimal control theory in order to solve inverse problems in non linear mechanics. The constitutive equations of the material is known. In the first class of inverse problem, knowing the initial state and the final state of the body, we propose a method to estimate the history of loading and the internal state such as plastic strains kno...