Tests of sheet materials for structural elements in transverse shear

An experimental procedure to evaluate the energy spent for fracture of a circular-clamped thin plate in transverse shear, induced by impact loading with a flat-face body, is briefly outlined. Test results for the specimens of the three materials: mild steel, thickness delta = 1.0 mm, a D16T aluminum...

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Bibliographic Details
Published in:Strength of materials 2001-09, Vol.33 (5), p.416-422
Main Authors: STEPANOV, G. V, ZUBOV, V. I, OLISOV, A. N, KLEPACZKO, J. R
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
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Summary:An experimental procedure to evaluate the energy spent for fracture of a circular-clamped thin plate in transverse shear, induced by impact loading with a flat-face body, is briefly outlined. Test results for the specimens of the three materials: mild steel, thickness delta = 1.0 mm, a D16T aluminum alloy, delta = 0.75 mm, and a PA6 shock-resistant composite, delta = 2.0 mm, are given. The analysis of experimental and calculated stress-strain data (within the circular area between the clamping contour and the loading surface) demonstrates the qualitative relation between the energy spent for deformation to fracture and dynamic strength and plasticity. Test results allow one to compare different materials by the energy spent for their fracture under impact loading. The specific work of deformation in shear characterizes this value more comprehensively than that determined in flexure, induced by impact of a spherical body, and is applicable over an expanded range of loading rates.
ISSN:0039-2316
1573-9325
DOI:10.1023/A:1013122416010