Cruciform specimen to obtain higher plastic deformation in a gauge region

•Plane stress state phenomenon has been studied and a solution has not yet been described in the literature provided.•New specimen for biaxial tensile testing was introduced.•New test jig was introduced. The objective of this study was to develop a new cruciform sample for a biaxial tensile test. Th...

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Bibliographic Details
Published in:Journal of materials processing technology 2016-01, Vol.227, p.11-15
Main Authors: Mitukiewicz, G., Głogowski, M.
Format: Article
Language:English
Subjects:
Biaxial tensile test
Cold rolling
Cruciform sample
Fracture mechanics
Gages
Gauges
Material testing
Plastic deformation
Plastic strain
Strain
Tensile tests
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Summary:•Plane stress state phenomenon has been studied and a solution has not yet been described in the literature provided.•New specimen for biaxial tensile testing was introduced.•New test jig was introduced. The objective of this study was to develop a new cruciform sample for a biaxial tensile test. The goal was to concentrate the plastic deformation in a gauge region. To achieve such a behaviour, arms of the cruciform sample were initially reinforced. To verify the proposed idea, a test rig was built, this allowed for the bi-axial tensile tests. The research was carried out on a cold-rolled DC5 steel specimen cut with a water jet. The sample, in its proposed shape, reaches almost 8% plastic strain before fracture and seems to be an interesting solution for further investigation.
ISSN:0924-0136
DOI:10.1016/j.jmatprotec.2015.07.016