Dynamic mode-I delamination in composite DCB under impact loads with attunable dynamic effect

doi:10.1016/j.compscitech.2023.110120

	Dynamic mode-I delamination in composite DCB under impact loads with attunable dynamic effect
	Chen TY(陈天宇); Harvey, ChristopherM ; Zhang, Kun ; Wang, Simon ; VSilberschmidt, Vadim ; Wei BC(魏炳忱)
刊名	COMPOSITES SCIENCE AND TECHNOLOGY
	2023-08-18
卷号	241 页码:110120
关键词	Double cantilever beam test Dynamic mode -I energy Release rate Drop weight impact Vibration CFRP
ISSN号	0266-3538
DOI	10.1016/j.compscitech.2023.110120
英文摘要	A dynamic mode-I energy release rate (ERR) of a double cantilever beam (DCB) under impact from a striker is derived for the first time for isotropic and orthotropic composite materials, accounting for DCB properties, a striker mass and an initial impact velocity. This is achieved in the context of structural vibration analysis by employing beam dynamics. It is found that the initial impact velocity determines the magnitude of the ERR, which is proportional to the velocity squared, while the delamination length ratio and the mass ratio between the striker and the DCB defines the time response. To understand the transient effect, a dynamic factor is defined as a function of the mass ratio. This factor decreases with an increasing striker mass, indicating a transition in the dynamic response from flexural-wave dominant to quasi-static-motion dominant, allowing an attunable dynamic effect. The developed theory is verified against the finite-element simulations for isotropic and orthotropic materials as well as experimental verification using published data. This work allows the measurements of fracture toughness under the impact load with the derived analytical solution. In addition, the developed theory can guide a design of impact tests and provide a fundamental understanding of impact-induced fracture for carbon-fiber-reinforced plastics.
分类号	一类
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:001053825200001
资助机构	National Natural Science Foundation of China [12272392] ; [11790292]
其他责任者	Chen, TY ; Zhang, K ; Wei, BC (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92653]
专题	力学研究所_国家微重力实验室
作者单位	1.{Wei Bingchen} Univ Chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100049 Peoples R China 2.{V. Silberschmidt Vadim} Loughborough Univ Wolfson Sch Mech Elect & Mfg Engn Loughborough LE11 3TU Leics England 3.{Zhang Kun, Wei Bingchen} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 4.{Harvey Christopher M., Wang Simon} Hebei Univ Engn Sch Mech & Equipment Engn Handan 056038 Peoples R China 5.{Harvey Christopher M., Wang Simon} Loughborough Univ Dept Aeronaut & Automot Engn Loughborough LE11 3TU Leics England 6.{Chen Tianyu, Zhang Kun, Wei Bingchen} Chinese Acad Sci Inst Mech Key Lab Micrograv Natl Micrograv Lab Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Chen TY,Harvey, ChristopherM,Zhang, Kun,et al. Dynamic mode-I delamination in composite DCB under impact loads with attunable dynamic effect[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2023,241:110120.
APA	陈天宇,Harvey, ChristopherM,Zhang, Kun,Wang, Simon,VSilberschmidt, Vadim,&魏炳忱.(2023).Dynamic mode-I delamination in composite DCB under impact loads with attunable dynamic effect.COMPOSITES SCIENCE AND TECHNOLOGY,241,110120.
MLA	陈天宇,et al."Dynamic mode-I delamination in composite DCB under impact loads with attunable dynamic effect".COMPOSITES SCIENCE AND TECHNOLOGY 241(2023):110120.