1. General introduction to inverse problems in solid mechanics 1.1. Significance and Importance 1.2. Main Types of Practical Inverse Problems 2. Identification of constitutive behavior of materials: Theory 2.1. Statement of the Problem 2.2. Principal Methods of Resolution 2.2.1. Direct Inversion 2.2.2. Model Updating Techniques 2.2.3. The Virtual Fields Method 3. Identification of constitutive ...

Ah&act--It is shown that in solid mechanics a skin effect is associated with anisotropy. Near a free surface or a surface of discontinuity certain components of the stress field vary rapidly from zero to a maximum within a thin skin. The thickness of this skin tends to vanish for increasing anisotropy. A stress concentration also occurs whereby certain stress components are amplified within the...

Most reservoir fluids contain heavy paraffinic compounds that may precipitate as a solid or solid like material called wax if the fluid is cooled down. Wax precipitation is a phenomenon of considerable importance in oil industry. An increase in aggregation results in enhanced oil viscosity. This however causes significant negative effects on production, transportation and processing of crude oi...

1. The subject and the goals of the study Problems of structures subjected to loads travelling with high velocity are of a special interest for practicing engineers. Numerous of analytical and numerical solutions are applied to solve the problems of transportation and robotic systems with a single or multi-point interactions such as train-track, vehicle-bridge or effector-guideway. These proble...

The application of the Natural Element Method (NEM) 2 to boundary value problems in two-dimensional small displacement elastostatics is presented. The discrete model of the domain consists of a set of distinct nodes N , and a polygonal description of the boundary @ . In the Natural Element Method, the trial and test functions are constructed using natural neighbour interpolants. These interpola...

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This paper presents a complete derivation and implementation of the Arbitrary Lagrangian Eulerian (ALE) formulation for the simulation of nonlinear static and dynamic problems in solid mechanics. While most of the previous work done on ALE for dynamic applications was mainly based on operator split and explicit calculations, this work derives the quasi-static and dynamic ALE equations in its si...