Comparison Of Deformation Characteristics Of The Steel Sheet In Local And Global Area By The Static Loading Using Videoextensometry

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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
Chemické Listy
Technická Univerzita v Liberci
Technical university of Liberec, Czech Republic
Abstract
Two steel sheets used for deep drawing of the compressor cover were investigated using the videoextensometry technique for strain monitoring during tensile test. The material causing cracks during deep drawing has higher both yield stress and strength and lower ductility comparing with material without problems in technology. The strain hardening exponent n is increasing in the strain interval up to just before R-m, while the values measured in local area were lower than values measured in global area. The plastic strain ratio is decreasing for both materials measured in local and global area.
Description
Subject(s)
videoextensometry, steel sheet, deformation characteristics, local and global area
Citation
ISSN
0009-2770
ISBN
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