Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials

doi:10.1007/s10409-019-00920-8

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials
	Liu ZS(刘子尚)3,4; Yang Z(杨哲)3; Chen YC(陈玉超)3,4; Yu YY 2; Wei YP(魏延鹏)3,4; Li MH 1; Huang CG(黄晨光)3
刊名	ACTA MECHANICA SINICA
	2020-04-01
卷号	36 期号:2 页码:460-471
关键词	Solid mechanics Dynamic failure strain Digital image correlation Strain rate effect Stiffness
ISSN号	0567-7718
DOI	10.1007/s10409-019-00920-8
通讯作者	Wei, Yanpeng(weiyanpeng@imech.ac.cn)
英文摘要	In this paper, a series of static/dynamic tensile tests are performed for glass fiber reinforced plastic (GFRP) composites. Using the combination of high-speed photography and digital image correlation (DIC) technology, true stress-strain curves in different directions and strain rates are obtained. We also obtained the dynamic failure strain of the material in different directions, which are used to accurately describe the dynamic tensile and failure behavior of the material. The experimental results show that there is a stiffness change point N in three directions under different strain rate (10(-3) s(-1), 10 s(-1), 100 s(-1)) tensile conditions. The stiffness before and after N point is recorded as E-initial and E-changed respectively. The values of E-changed in weft direction and warp direction are about 30% to 50% of E-initial, while E-changed in tilt direction is only about 10% of E-initial. The fiber has the highest strength in the weft direction and the tilt direction has the lowest strength. With the combination of high-speed photography and DIC technology, the dynamic failure parameters of different directions under the strain rate of 100 s(-1) are obtained. The dynamic failure strains in three directions are 0.245, 0.373 and 0.341, respectively. The parameters are verified by impact three-point bending test. These works can more accurately describe the dynamic mechanical behavior of glass fiber reinforced plastic (GFRP) composites and provide reference for the design of GFRP structures.
分类号	二类
WOS关键词	DIGITAL IMAGE CORRELATION ; STRAIN-RATE ; DISPLACEMENT ; LIGHTWEIGHT
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000531064200015
其他责任者	Wei, Yanpeng
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/82024]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Quartermaster Res Inst Engn & Technol, Beijing 100010, Peoples R China 2.CRRC Qingdao Sifang Co LTD, Qingdao 266111, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Liu ZS,Yang Z,Chen YC,et al. Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials[J]. ACTA MECHANICA SINICA,2020,36(2):460-471.
APA	刘子尚.,杨哲.,陈玉超.,Yu YY.,魏延鹏.,...&黄晨光.(2020).Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials.ACTA MECHANICA SINICA,36(2),460-471.
MLA	刘子尚,et al."Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials".ACTA MECHANICA SINICA 36.2(2020):460-471.