Experimental and theoretical studies on inter-fiber failure of   unidirectional polymer-matrix composites under different strain rates

doi:10.1016/j.ijsolstr.2016.11.014

CORC > 北京大学 > 工学院

	Experimental and theoretical studies on inter-fiber failure of unidirectional polymer-matrix composites under different strain rates
	Tao, Yong ; Chen, Haosen ; Yao, Kai ; Lei, Hongshuai ; Pei, Yongmao ; Fang, Daining
刊名	INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
	2017
关键词	Polymer-matrix composites Strain rate effect Strength Failure theory FIBER-REINFORCED COMPOSITES COMBINED TRANSVERSE COMPRESSION AS4/PEEK COMPOSITE COMPUTATIONAL MICROMECHANICS GLASS/EPOXY COMPOSITES INELASTIC BEHAVIOR PART I SHEAR STRENGTH DEFORMATION
DOI	10.1016/j.ijsolstr.2016.11.014
英文摘要	Polymer-matrix composites (PMCs) are widely used in many fields. However, the accurate characterization of their failure behavior is still a challenge. At present, the inter-fiber failure of unidirectional PMCs under compression is not well predicted, and the corresponding strain rate dependent failure theory remains less explored. This paper aims to study and characterize the inter-fiber failure behavior of unidirectional PMCs under different strain rates. Unidirectional glass/epoxy specimens with various off-axis angles were tested at three strain rates (quasi-static, 383 and 646 s(-1)), and the measured strain rate dependent strength is modelled by an empirical formula. To evaluate the test results, a new failure theory that incorporates strain rate effects is proposed. The theory is developed based on three different failure modes, with each represented by a new and simple formula. Comparison shows that the predicted failure envelopes and fracture angles are in excellent agreement with the experimental results. (C) 2017 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [11227801, 11232001]; National Basic Research Program of China [2011CB610303, G2010CB832701, 2011CB606105]; SCI(E); ARTICLE; 37-46; 113
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473414]
专题	工学院
推荐引用方式 GB/T 7714	Tao, Yong,Chen, Haosen,Yao, Kai,et al. Experimental and theoretical studies on inter-fiber failure of unidirectional polymer-matrix composites under different strain rates[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2017.
APA	Tao, Yong,Chen, Haosen,Yao, Kai,Lei, Hongshuai,Pei, Yongmao,&Fang, Daining.(2017).Experimental and theoretical studies on inter-fiber failure of unidirectional polymer-matrix composites under different strain rates.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES.
MLA	Tao, Yong,et al."Experimental and theoretical studies on inter-fiber failure of unidirectional polymer-matrix composites under different strain rates".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES (2017).