A peridynamic model for the nonlinear static analysis of truss and tensegrity structures

被引：23
|
作者：
Li, Hui [1 ]
Zhang, Hongwu [1 ]
Zheng, Yonggang [1 ]
Zhang, Liang [1 ,2 ]
机构：
[1] Dalian Univ Technol, Fac Vehicle Engn & Mech, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
[2] Chongqing Univ, Dept Engn Mech, Coll Aerosp Engn, Chongqing 400030, Peoples R China
来源：
COMPUTATIONAL MECHANICS | 2016年 / 57卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Peridynamic model; Truss structures; Tensegrity structures; Nonlinearity; Bimodularity; Adaptive dynamic relaxation; FORM-FINDING METHOD; MECHANICAL ANALYSIS; DYNAMIC-ANALYSIS; FORMULATION; ALGORITHM;
D O I：
10.1007/s00466-016-1264-4
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
A peridynamic model is developed in this paper for the nonlinear static analysis of truss and tensegrity structures. In the present model, the motion equations of material points are established on the current configuration and the pairwise forces are functions of extension and direction of the bonds. The peridynamic parameters are obtained based on the equivalence between the strain energy densities of the peridynamic and classical continuum models. The present model is applied to the mechanical analysis of bimodular truss and tensegrity structures, in which the compressive modulus is set to be zero for the cables. Several representative examples are carried out and the results verify the validity and efficiency of the developed model by comparing with the conventional nonlinear finite element method.
引用
收藏
页码：843 / 858
页数：16
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