The mathematical modeling of high-speed impact of plates based on the continual gauge theory of defects with dissipation of energy
β Scribed by Sergey P. Kiselev; Oleg V. Belligh
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 497 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0734-743X
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β¦ Synopsis
A mathematical model of elastoplastic deformation of continuous and porous materials is developed on the base of the gauge theory of defects.
The problem of high-speed impact of plates is solved numerically and the stage of material prefracture is studied by means of the model proposed. It is discovered that the whirls of a material arise under the effect of dislocation caused microstresses, the whirls significantly increase at the expense of softening caused by pores. Distribution of pores in material is inhomogeneous, the characteristic inhomogeneity scale coincides with the characteristic scale of dislocation structure. The results obtained are in agreement with the experimentally observed effect of material microrotations formation under conditions of pre-fracture.
π SIMILAR VOLUMES
Structural models of martensitic interfaces are those where the habit plane (HP) is comprised of coherent terraces reticulated by arrays of interfacial defects. Such interfaces are shown explicitly to exhibit no long-range displacements and to move in a glissile manner by lateral motion of disconnec