New incremental secant linearization method for mean-field homogenization approach of elasto-viscoplastic microscopic heterogeneous materials

doi:10.1016/j.compstruct.2021.114125

IMECH-IR > 非线性力学国家重点实验室

	New incremental secant linearization method for mean-field homogenization approach of elasto-viscoplastic microscopic heterogeneous materials
	Rao W(饶威); Yu, Chao ; Zhang, Juan ; Kang, Guozheng
发表期刊	COMPOSITE STRUCTURES
	2021-09
卷号	271 页码:114125
ISSN	0263-8223
摘要	Unmatched time scales of elastic and viscoplastic responses are not reasonably considered in linearizing the constitutive laws of constituent phases in elasto-viscoplastic microscopic heterogeneous materials, which makes the interaction among the constituent phases very difficult to be described by homogenization approaches. To address this issue, a new incremental secant linearization method is developed by solving linearized equations of stress, strain and time increments obtained from the Hooke's law and the Taylor's expansion of stress increment function. Subsequently, the new linearization method is implemented into the MoriTanaka's (M-T) and self-consistent (SC) homogenization approaches. Finally, the stress-strain responses of elasto-viscoplastic microscopic heterogeneous materials (including the composites and polycrystalline materials) under different loading conditions are predicted by the incremental secant linearization-based M-T and SC approaches, and the predicted results are compared with the results obtained by other approaches, such as finite element, fast Fourier transform and generalized affine linearization methods. The comparison shows that the new secant linearization takes an important role in the accurate and effective simulations of the stress-strain responses of elasto-viscoplastic microscopic heterogeneous materials, and the predictions are independent of loading step size if the step size is not too large. Meanwhile, the homogenization approaches of elasto-viscoplastic and elasto-plastic microscopic heterogeneous materials are expected to be unified since the new secant linearization method provides the same mathematical structure for the linearized elastoviscoplastic constitutive model as that for the elasto-plastic one.
关键词	Incremental secant linearization method Micro-mechanics Elasto-viscoplastic microscopic heterogeneous materials
学科领域	Mechanics ; Materials Science, Composites
DOI	10.1016/j.compstruct.2021.114125
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000663677100007
论文分区	一类
力学所作者排名	1
RpAuthor	Kang, GZ (corresponding author), Southwest Jiaotong Univ, Sch Mech & Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu, Sichuan, Peoples R China.
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90249
专题	非线性力学国家重点实验室
作者单位	1.Southwest Jiaotong Univ, Sch Mech & Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Rao W,Yu, Chao,Zhang, Juan,et al. New incremental secant linearization method for mean-field homogenization approach of elasto-viscoplastic microscopic heterogeneous materials[J]. COMPOSITE STRUCTURES,2021,271:114125.
APA	饶威,Yu, Chao,Zhang, Juan,&Kang, Guozheng.(2021).New incremental secant linearization method for mean-field homogenization approach of elasto-viscoplastic microscopic heterogeneous materials.COMPOSITE STRUCTURES,271,114125.
MLA	饶威,et al."New incremental secant linearization method for mean-field homogenization approach of elasto-viscoplastic microscopic heterogeneous materials".COMPOSITE STRUCTURES 271(2021):114125.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
New incremental seca（1506KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文