the aim of the present paper is to sbo» that anti-realism in science, 1vhich has a1;guab/y become more fashionable in recentyears, contrary to tuha: its proponents assert, cannot make use of quantum mechanics and its impressiue achievements as a frump card in justifying its claims. i will argue that scientific anti-realism far from providing scientific communiry with a progressive methodologica...

Non-associative elasto-plasticity is the working model of plasticity for soil and rock mechanics. Yet, it is usually viewed as non-variational. In this work, we prove a contrario the existence of a variational evolution for such a model under a natural capping assumption on the hydrostatic stresses and a less natural mollification of the stress admissibility constraint. The obtained elasto-plas...

Aseismic design of gravity wall still is a more difficult issue. The reason stems from the complexity of the problem which requires skills in soil mechanics, foundation engineering, soil-structure interaction along with knowledge of structure dynamics. Designing seismic gravity retaining structures deals with both kinematic interaction and inertial interaction but almost seismic building code n...

Some problems regarding numerical modeling of predicted vibrations excited by railway traffic are discussed. Model formulation in the field of structural mechanics comprises a vehicle, a track (often in a tunnel) and soil. Time consuming computations are needed to update large matrices at every discrete step. At first, a sequential Matlab code is generated. Later on, the formulation is modified...

In order to improve autonomous mobility of planetary rover, many works have recently focused on non-geometric features of surrounding terrain such as color, texture, and wheel-soil interaction mechanics (Dima et al., 2004; Halatci et al., 2007; Helmick et al., 2009; Ishigami et al., 2007). To tackle with the issue, most of them propose to utilize on-board sensors such as multi-spectral imagers,...

A recent trend towards greater automation of earthmoving machines, such as backhoes, loaders, and dozers, reflects a larger movement in the construction industry to improve productivity, efficiency and safety. This document reviews related work in various disciplines drawn upon by researchers— soil mechanics, computer graphics, kinematic and dynamical modeling, optimization, control and decisio...

this paper investigates the lateral vibration of single-layered graphene sheets based on a new theory called doublet mechanics with a length scale parameter. after a brief reviewing of doublet mechanics fundamentals, a sixth order partial differential equation that governs the lateral vibration of single-layered graphene sheets is derived. using doublet mechanics, the relation between natural f...

Soil mechanics is a very important basic course in civil engineering majors such as water conservancy and hydropower technology, road bridge construction technology vocational colleges. Due to the complex variable characteristics of soil, physical mechanical properties soil differ significantly from other materials. Therefore, teaching should not only focus on concepts theoretical knowledge, bu...