Formulation of symmetry boundary modeling in non-ordinary state-based peridynamics and coupling with finite element analysis

周动力 不连续性分类 有限元法 对称(几何) 边值问题 联轴节(管道) 边界(拓扑) 机械 物理 计算机科学 数学分析 材料科学 数学 连续介质力学 几何学 冶金 热力学
作者
Mi G. Chorzepa,Mi G. Chorzepa
出处
期刊:Mathematics and Mechanics of Solids [SAGE Publishing]
卷期号:23 (8): 1156-1176 被引量:19
标识
DOI:10.1177/1081286517711495
摘要

Peridynamics is an effective method in computational solid mechanics for dealing with discontinuities. However, its computational cost limits its applications, especially when used in the most general form, non-ordinary state-based peridynamics. This paper considers two approaches which decrease the computational cost. The first approach accounts for symmetry boundary conditions in a peridynamic body. In nonlocal peridynamics, boundary conditions are applied to an area. Therefore, when modeling the symmetry boundary condition, assuming fixed particles around the symmetry axis yields incorrect results. The present formulation introduces constraints which allow modeling of local symmetry conditions. Second, the finite-element–peridynamic coupling method is adopted for non-ordinary state-based peridynamics. The coupling method enables the use of peridynamics around discontinuities like cracks, and the faster finite element for the surrounding body. These two methods effectively reduce the solution time with an acceptable accuracy. The validity of these approaches is studied through various examples. Also, ductile crack growth in a compact tension specimen is studied, applying the presented methods. Good agreement is found when comparing experimental results with corresponding numerical results obtained using either fully peridynamic or coupled models.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
YZQ发布了新的文献求助10
1秒前
黑咖啡完成签到,获得积分10
1秒前
Liufgui应助可靠的如之采纳,获得10
3秒前
科研通AI2S应助阿俊采纳,获得10
4秒前
5秒前
7秒前
9秒前
9秒前
JamesPei应助YZQ采纳,获得10
10秒前
Orange应助邪恶花生米采纳,获得10
10秒前
weijie发布了新的文献求助10
10秒前
hf完成签到,获得积分10
10秒前
10秒前
12秒前
量子星尘发布了新的文献求助30
13秒前
硅负极完成签到,获得积分10
13秒前
zzt发布了新的文献求助10
13秒前
14秒前
Dr.Yang发布了新的文献求助10
15秒前
17秒前
刻苦的秋柔完成签到,获得积分10
19秒前
意大利种马完成签到,获得积分20
20秒前
orixero应助写得出发的中采纳,获得10
22秒前
刘雨森完成签到 ,获得积分10
23秒前
坦率白萱应助littleblack采纳,获得10
24秒前
香蕉觅云应助意大利种马采纳,获得10
25秒前
ZS完成签到,获得积分10
25秒前
帅哥的事情少管完成签到,获得积分10
26秒前
littlestone完成签到,获得积分10
27秒前
NexusExplorer应助ShuXU采纳,获得10
29秒前
果果完成签到,获得积分10
29秒前
项绝义完成签到,获得积分10
30秒前
30秒前
空古悠浪发布了新的文献求助20
30秒前
30秒前
30秒前
32秒前
所所应助Richard采纳,获得10
32秒前
热心市民小红花应助哈哈采纳,获得50
32秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988920
求助须知:如何正确求助?哪些是违规求助? 3531290
关于积分的说明 11253247
捐赠科研通 3269903
什么是DOI,文献DOI怎么找? 1804830
邀请新用户注册赠送积分活动 882027
科研通“疑难数据库(出版商)”最低求助积分说明 809052