NDLI: Tensile Anisotropy of Cu/Al Clad Metals After Prestrain Using Digital Image Correlation

Content Provider	Springer Nature Link
Author	Sun, Tao Liang, Jin Guo, Xiang Li, Lei gang
Copyright Year	2013
Abstract	A dimensional deformation measurement system (XJTUDIC/VS) based on digital image correlation was employed to measure the deformation and strain field of Cu/Al clad metals made using the explosive welding technique. An extensometer with a gage length of 50 mm was used during the Q235 tensile test to verify the strain measurement accuracy of the system. The results demonstrate that the accuracy of the XJTUDIC/VS system is ≥0.5%, which is very close to that of the extensometer. The anisotropy of Cu/Al clad metals under uniaxial tension after 0, 1.5, 2.5, and 4.5% prestrain was investigated. With an increase in strain, the true stress-strain curve varied at different directions in the same prestrains. The strain hardening rate, r value (changes from 0.1 to 0.9), and n value (changes from 0.25 to 0.35) all strongly depended on loading directions and prestrains. The linear relations between longitudinal strain and transverse strain were also influenced by tensile directions and prestrains. Cu/Al clad metals generally presented strong anisotropy.
Starting Page	3825
Ending Page	3833
Page Count	9
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	22
Issue Number	12
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2013-10-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	anisotropy Cu/Al clad metals digital image correlation prestrain strain measurement Characterization and Evaluation of Materials Tribology, Corrosion and Coatings Quality Control, Reliability, Safety and Risk Engineering Design
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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