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Flaw tolerance in a viscoelastic strip
Chen L(陈磊); Chen SH(陈少华); Gao HJ; Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationJOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
2013-07-01
Volume80Issue:4Pages:041014/1-041014/10
ISSN0021-8936
AbstractLoad-bearing biological materials such as bone, teeth, and nacre have acquired some interesting mechanical properties through evolution, one of which is the tolerance of cracklike flaws incurred during tissue function, growth, repair, and remodeling. While numerous studies in the literature have addressed flaw tolerance in elastic structures, so far there has been little investigation of this issue in time-dependent, viscoelastic systems, in spite of its importance to biological materials. In this paper, we investigate flaw tolerance in a visco-elastic strip under tension and derive the conditions under which a pre-existing center crack, irrespective of its size, will not grow before the material fails under uniform rupture. The analysis is based on the Griffith and cohesive zone models of crack growth in a visco-elastic material, taking into account the effects of the loading rate along with the fracture energy, Young's modulus, and theoretical strength of material.
KeywordBiological Materials Flaw Tolerance Fracture Mechanics Viscoelasticity Loading Rate
Subject Area新型材料的力学问题
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000326177600028
Funding OrganizationNational Science Foundation of China [10972220, 11125211,11021262); Project No.2012CB937500.
DepartmentLNM仿生材料与固体的微尺度力学
Classification一类/力学重要期刊
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47436
Collection非线性力学国家重点实验室
Corresponding AuthorChen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Chen L,Chen SH,Gao HJ,et al. Flaw tolerance in a viscoelastic strip[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2013,80(4):041014/1-041014/10.
APA 陈磊,陈少华,Gao HJ,&Chen, SH .(2013).Flaw tolerance in a viscoelastic strip.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,80(4),041014/1-041014/10.
MLA 陈磊,et al."Flaw tolerance in a viscoelastic strip".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 80.4(2013):041014/1-041014/10.
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