Mechanical behavior and size effect of the staggered bio-structure materials | |
Ma HS(马寒松); Wei YG(魏悦广); Song JR(宋晶如); Liang LH(梁立红); Reprint Author: Ma HS and Wei YG | |
刊名 | MECHANICS OF MATERIALS |
2018-11 | |
卷号 | 126页码:47-56 |
关键词 | Staggered Bio-structure Trans-scale Model Strain Gradient Theory Effective Modulus Shear-lag Model |
ISSN号 | 0167-6636 |
DOI | 10.1016/j.mechmat.2018.07.009 |
英文摘要 | Staggered structure materials, or "brick and mortar" structure materials, are widely observed in natural biomaterials. In this paper, based on strain gradient theory, a trans-scale shear-lag model is developed to characterize the mechanical properties and their size effects for the staggered bio-structurematerials. The analytical expressions of the overall effective modulus, interfacial strengths and deformations of the staggered bio-structure material have been obtained. The results illustrate that the overall effective modulus, interfacial strengths and interfacial deformations have the strong size effects. These effects can be described by a combination parameter, i.e. thickness of organic material layer over the material length scale parameter of strain gradient theory. The overall effective modulus and interfacial strength increase with the decrease of the combination parameter. However, the interfacial deformation considerably decreases with the decrease of the combination parameter value. When the combination parameter value is taken as very large, corresponding to the case of large organic matrix thickness, the results return to the classical ones. The predicted effective moduli of nacre are also compared with experimental results and are in good agreement with experimental results. |
分类号 | 二类/q1 |
语种 | 英语 |
WOS记录号 | WOS:000447580200005 |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/77964] |
专题 | 力学研究所_非线性力学国家重点实验室 |
推荐引用方式 GB/T 7714 | Ma HS,Wei YG,Song JR,et al. Mechanical behavior and size effect of the staggered bio-structure materials[J]. MECHANICS OF MATERIALS,2018,126:47-56. |
APA | Ma HS,Wei YG,Song JR,Liang LH,&Reprint Author: Ma HS and Wei YG.(2018).Mechanical behavior and size effect of the staggered bio-structure materials.MECHANICS OF MATERIALS,126,47-56. |
MLA | Ma HS,et al."Mechanical behavior and size effect of the staggered bio-structure materials".MECHANICS OF MATERIALS 126(2018):47-56. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论