An Equal-Biaxial Test Device for Large Deformation in Cruciform Specimens

doi:10.1007/s11340-021-00810-w

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	An Equal-Biaxial Test Device for Large Deformation in Cruciform Specimens
	Ru M(茹敏)2,3; Lei XQ(雷现奇)3; Liu XM(刘小明)1,3; Wei YJ(魏宇杰)1,2,3
刊名	EXPERIMENTAL MECHANICS
	2022-01-09
页码	7
关键词	Biaxial tension Soft matter Cruciform specimen Digital image correlation Rope and pulley
ISSN号	0014-4851
DOI	10.1007/s11340-021-00810-w
通讯作者	Lei, X. Q.(leixianqi@lnm.imech.ac.cn)
英文摘要	Background Biaxial tests are important for complex mechanical behaviours of materials such as rubbers, soft materials, polymers and bio-materials, and commercial biaxial testing machines are usually expensive. Objective For convenience and cost control, an equal-biaxial device for soft materials, with a load capacity up to 100 N and a maximum displacement of 50 mm, is designed and manufactured. Methods A novel rope and pulley load system is applied in the designed biaxial device, and the device ensures automatically equal stress in two directions and minimizes possible installation deviation. The biaxial strain is measured from the central zone of the cruciform samples by a set of non-contact laser extensometer. Results The device is calibrated through an array of tests for three different types of soft materials, silicon rubber, polyimide (PI) and polyethylene terephthalate (PET). The repeatability of equal-biaxial strain-stress curves of the three materials is excellent. Possible error sources of the device are examined and their respective contributions are quantified. Conclusions Such a device offers a convenient way to carry out biaxial tests for many materials such as rubbers, polymers, and biomaterials.
分类号	二类
资助项目	National Natural Science Foundation of China (NSFC) Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; NSFC[11790291] ; NSFC[11802308] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDB22020200] ; CAS Center for Excellence in Complex System Mechanics
WOS关键词	TEST FIXTURE ; LARGE-STRAIN ; MACHINE ; DESIGN ; BEHAVIOR ; FRACTURE ; RUBBER ; TENSION ; TUBES
WOS研究方向	Materials Science ; Mechanics
语种	英语
WOS记录号	WOS:000740383900001
资助机构	National Natural Science Foundation of China (NSFC) Basic Science Center for Multiscale Problems in Nonlinear Mechanics ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) ; CAS Center for Excellence in Complex System Mechanics
其他责任者	Lei, X. Q.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/88287]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Ru M,Lei XQ,Liu XM,et al. An Equal-Biaxial Test Device for Large Deformation in Cruciform Specimens[J]. EXPERIMENTAL MECHANICS,2022:7.
APA	茹敏,雷现奇,刘小明,&魏宇杰.(2022).An Equal-Biaxial Test Device for Large Deformation in Cruciform Specimens.EXPERIMENTAL MECHANICS,7.
MLA	茹敏,et al."An Equal-Biaxial Test Device for Large Deformation in Cruciform Specimens".EXPERIMENTAL MECHANICS (2022):7.