A micropolar peridynamic theory in linear elasticity

被引：44

作者：

Chowdhury, Shubhankar Roy ^{[1
]}

Rahaman, Md. Masiur ^{[1
]}

Roy, Debasish ^{[1
]}

Sundaram, Narayan ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Civil Engn, Bangalore 560012, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2015年 / 59卷

关键词：

Micropolar peridynamics; Length scales; Constitutive correspondence; Timoshenko-type beams; Plane stress problems; PROPAGATION; NONORDINARY; BEAMS;

D O I：

10.1016/j.ijsolstr.2015.01.018

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A state-based micropolar peridynamic theory for linear elastic solids is proposed. The main motivation is to introduce additional micro-rotational degrees of freedom to each material point and thus naturally bring in the physically relevant material length scale parameters into peridynamics. Non-ordinary type modeling via constitutive correspondence is adopted here to define the micropolar peridynamic material. Along with a general three dimensional model, homogenized one dimensional Timoshenko type beam models for both the proposed micropolar and the standard non-polar peridynamic variants are derived. The efficacy of the proposed models in analyzing continua with length scale effects is established via numerical simulations of a few beam and plane-stress problems. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：171 / 182

页数：12

共 24 条

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[Anonymous], INT J ENGNG SCI 2

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