A note on dependence of the inertia tensor on the strain measures

被引:0
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作者
Elena Ivanova
Elena Vilchevskaya
机构
[1] Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences,
[2] Peter the Great Saint-Petersburg Polytechnic University,undefined
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关键词
Micropolar continuum; Micro-inertia tensor; Strain measures; Spatial description;
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摘要
The paper focuses on the dependence of the micro-inertia tensor on continuum deformations. Modeling of the micropolar medium is based on the spatial description that opens the possibility to model situations and materials with a continuum point that on the microscale consists no longer of the same elementary units during a physical process. The tensor of inertia of the polar particle is obtained by averaging the inertia tensors of microparticles within a representative volume. Because of the medium deformation, the representative volume contains different micro-particles as the medium moves, and the inertia tensor of the volume will change due to the incoming or outgoing flux of inertia. A possibility of dependence of the tensor of inertia on the strain measures is demonstrated, and suitable forms of the dependence are suggested.
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页码:141 / 158
页数:17
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