The weekly No Plastic Bag Campaign Day comprises of an added charge of MYR 0.20 (USD 0.06) per plastic bag in supermarkets and grocery stores. The objective is to reduce plastic bag consumption and save the environment. However, the campaign has provoked a range of reactions from the public including consumers, policy makers, environmentalists and the plastic industry. Considering consumers as ...

We consider polycrystals with perfectly plastic grains. We study the two-dimensional problem that results if the textures and applied stresses are compatible with antiplane deformation. We show that the order of magnitude of recently introduced outer bounds on the strength domain of polycrystals is sharp even under the assumption of square symmetry on the texture. We also conclude that the fact...

ntroduction. The student selection at the universities has always been a matter of concern. Student selection process should allow equal opportunities to all students who fulfil a set of pre-determined criteria, apart from the sex, religion, social and cultural backgrounds. Moreover, the process should be quite transparent and perfectly concerned. Student admission is held in different methods ...

This paper deals with a variational model applicable to small-deformation structural analysis expressed for linearly elastic-perfectly plastic (von Mises-Hubcr-Hencky) material. The model comprises a unification of the minimum complementary energy principal, the Haar-von Karman principle for deformation elastoplasticity, and (in a sense) the lower bound theorem of Limit Analysis. Thus it corres...

The quasistatic rate-independent evolution of the Prager-Zieglertype model of linearized plasticity with hardening is shown to converge to the rate-independent evolution of the Prandtl-Reuss elastic/perfectly plastic model. Based on the concept of energetic solutions we study the convergence of the solutions in the limit for hardening coe cients converging to 0 by using the abstract method of Γ...

A study is made of the problem of interpreting the results of Menard pressuremeter tests on soil in situ. In the test a cylindrical cavity is expanded by internal pressure, and the relation between applied pressure and cavity vulume change is measured. It is shown that the results of a single test are enough to determine a complete stress-strain relation in plane strain, and a simple graphical ...