An Approximate Method of Estimating the Yield of a Strip Under Tension Cut by Serrated Surfaces on Opposite Faces

[+] Author and Article Information
Jingyu Shi, D. L. S. McElwain

Centre in Statistical Science and Industrial Mathematics, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia

S. A. Domanti

Industrial Automation Services PTY. LTD., PO Box 3100, Teralba, NSW 2284, Australia

J. Eng. Mater. Technol 125(2), 170-175 (Apr 04, 2003) (6 pages) doi:10.1115/1.1555656 History: Received April 15, 2002; Revised November 19, 2002; Online April 04, 2003
Copyright © 2003 by ASME
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Indentation of a strip by rigid bodies with serrated surfaces
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Variation of the lift-up angle ξ with the semi-angle θ of the wedge at the early stage of indentation
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The proposed slip line field around the end teeth at the critical stage for blunt teeth (θ>22 °10)
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The hodograph corresponding to the slip line field shown in Fig. 3
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Slip line field for the calculation of h⁁/a and σ̄e/(2k) in the indentation by a wedge
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Variation of the critical average pressure p̄/(2k)×100 with the semi-angle of the teeth θ for c/H=50. Solid line: σ/(2k)=0; Dashed line: σ/(2k)=0.5.
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Variation of the critical average pressure p̄/(2k) with half thickness H for σ/(2k)=0 and (1) c=0.025,θ=68.2 deg, and (2) c=0.05, θ=78.7 deg (lines with the big black markers). Solid line: present approximation; Dotted line: Domanti’s approximation.




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