Note: Investigation on the influences of gripping methods on elastic modulus by a miniature tensile device and in situ verification

被引：19

作者：

Ma, Z. C. ^{[1
]}

Zhao, H. W. ^{[1
]}

Wang, K. T. ^{[1
]}

Zhou, X. Q. ^{[1
]}

Hu, X. L. ^{[1
]}

Lu, S. ^{[1
]}

Cheng, H. B. ^{[1
]}

机构：

[1] Jilin Univ, Coll Mech Sci & Engn, Changchun 130025, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 06期

基金：

中国国家自然科学基金;

关键词：

ATOMIC-FORCE MICROSCOPY; DEFORMATION; SPECIMENS;

D O I：

10.1063/1.4808374

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this paper, by gripping the specimen on various positions, including the gripping section, stress concentration transition section, and gauge length section, theoretical analysis on the influences of gripping methods on tensile elastic modulus calculation was investigated with a group of equations. Then, an image-based displacement measurement system was implemented, and the experimental verification via in situ tensile testing was carried out to verify the feasibility of the theoretical analysis by a miniature tensile device integrated with a metallographic microscope. The stress-strain curves of 2026 aluminum alloy were also obtained by gripping the specimens on various positions to illustrate the influences of gripping methods. The influence of gripping methods on elongation measurement was also investigated. This paper showed a modular calculation method of elastic modulus for the tensile testing of typical plate specimens. (C) 2013 AIP Publishing LLC.

引用

页数：3

共 13 条

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[13]

[No title captured]

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