## Abstract Some new aspects of the continuum strong discontinuity approach (CSDA) to model material failure in geomaterials are addressed. A new global algorithm, for tracking multiple crack lines/surfaces in 2D/3D cases is proposed. It is based on solving a simple heat conductionβlike problem acc
Application of Vector Calculus to Numerical Simulation of Continuum Mechanics Problems
β Scribed by Nicholas M. Bessonov; Dong Joo Song
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 199 KB
- Volume
- 167
- Category
- Article
- ISSN
- 0021-9991
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β¦ Synopsis
It is well known that vector-tensor notation is a compact and natural language for the mathematical formulation of continuum mechanics problems. Here we describe the application of vector technique to numerical simulation starting with a mathematical formulation. We provide an efficient numerical scheme and furnish an implementation as a computer program. As a result (in comparison with traditional "component" form), the two last steps are significantly simplified, especially for multidimensional problems with various boundary conditions in irregular geometries where nonorthogonal meshes are applied. Therefore, more attention can be focused on the physical nature of problems. Apart from the cleaner syntax, vector notation conserves the structure of traditional numerical algorithms and solves multidimensional problems with minimum additional programming effort. Complex practical applications of this technique are described as well.
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This paper presents a general framework for the formulation of constitutive models that incorporate a localized dissipative mechanism. The formalism of strong discontinuities is employed, allowing for the decoupling of the constitutive characterization of the continuum and localized responses of the