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The Influence of Boundary Conditions on Modulus Measurement in Uniaxial Compression Tests
Dong J; Huan Y(郇勇); Liu W; Feng YH(冯义辉); Dai YJ; Hao SW(郝圣旺); Huan, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
Source PublicationEXPERIMENTAL TECHNIQUES
2017-06-01
Volume41Issue:3Pages:327-330
ISSN0732-8818
Abstract

There is distinct deviation between the intrinsic and measurement value of Young's modulus in uniaxial compression tests. The key influence factor has always been owned to the friction between compression platens and specimen. However, we found this is not true by Finite element analysis (FEA) and experiments. FEA results show that the friction only makes a major influence on the plastic behavior, resulting in a barreling deformation, rather than on the elastic deformation behavior of specimen. In fact, the oblique contact between compression plate and specimen will severely influence the homogeneity of the stress field in specimen, and result in the deviation of the measured modulus value. This study can well interpret the relevant provision in ASTM E9-09 that only slim specimens (with aspect ratio >= 8) are suitable for the compression modulus tests.

KeywordCompression Tests Modulus Finite Elements Analysis (Fea) Oblique Contact Friction
DOI10.1007/s40799-017-0176-3
Indexed BySCI ; EI
Language英语
WOS IDWOS:000404274200010
WOS KeywordBULK METALLIC-GLASS ; YOUNGS MODULUS ; END FRICTION ; YIELD-STRESS ; DEFORMATION ; STRENGTH ; TENSION
WOS Research AreaEngineering ; Mechanics ; Materials Science
WOS SubjectEngineering, Mechanical ; Mechanics ; Materials Science, Characterization & Testing
Funding OrganizationNational Natural Science Foundation of China(11372323||National Basic Research Program of China(2013CB834100)||CAS Key Technology Talent Program||11302231)
DepartmentLNM实验平台 ; LNM材料介观力学性能的表征
ClassificationQ3
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60639
Collection非线性力学国家重点实验室
Corresponding AuthorHuan, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Dong J,Huan Y,Liu W,et al. The Influence of Boundary Conditions on Modulus Measurement in Uniaxial Compression Tests[J]. EXPERIMENTAL TECHNIQUES,2017,41(3):327-330.
APA Dong J.,Huan Y.,Liu W.,Feng YH.,Dai YJ.,...&Huan, Y .(2017).The Influence of Boundary Conditions on Modulus Measurement in Uniaxial Compression Tests.EXPERIMENTAL TECHNIQUES,41(3),327-330.
MLA Dong J,et al."The Influence of Boundary Conditions on Modulus Measurement in Uniaxial Compression Tests".EXPERIMENTAL TECHNIQUES 41.3(2017):327-330.
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