The parameters of localization patterns emerging at the linear stage of work hardening are discussed in the frame of autowave concept. The stress-strain diagrams have been plotted for the test samples of metals exposed to active loading. It is found that the product of phase autowave velocity and length has the same order of magnitude as the product of elastic wave rate and the lattice constant...

ゼリーのような柔らかいもの(もしくは弾性体)の物理 ベースな変形シミュレーションは, 動画やテレビゲームなど の分野において重要である. これまで, コンピューターグラ フィックスの分野において, 弾性体の変形に関する非常に多 くの研究がなされてきた. 質量バネモデルや粒子ベースモ デル [19, 11, 1]は, テレビゲームのようなインタラクティブ なアプリケーションに用いられ, より正確な, すなわち連続 体力学に基づいた FEM(Finite Element Method, 有限要素 法)ベースのシミュレーション手法は, 主に正確さが要求さ れる動画に用いられている. FEM ベースのモデルは, 計算 コストが高いことが知られており, アダプティブ分割法など の多重解像度手法が提案されている [4, 8]. 一般的に多重解像度のアプローチを用いる FEM ベース の手法では,...

Electro-thermo-elastic stress analysis of piezoelectric polymeric thick-walled cylinder reinforced by boronnitride nanotubes (BNNTs) subjected to electro-thermo-mechanical fields is presented in this article. The electro-thermo-elastic properties of piezoelectric fiber reinforced composite (PEFRC) was studied by a modified XY micromechanical model capable of exhibiting full coupling relati...

In current study, The Mesh-free method based on weak-form formulation coupled with the ultrasound imaging technique is developed. This problem consists in computing the deformation of an elastic non-homogenous phantom by numerical methods (both Mesh-free and Finite Element) and converge their results to the measured deformation by the ultrasound. The shape functions of Mesh-free are approximate...

contact mechanics is related to the deformation study of solids that meet each other at one or more points. the physical and mathematical formulation of the problem is established upon the mechanics of materials and continuum mechanics and focuses on computations involving bodies with different characteristics in static or dynamic contact. contact mechanics gives essential information for the s...