Dynamic Steady-State Stress Field in a Web During Slitting

[+] Author and Article Information
C. Liu

MST-8, Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545e-mail: cliu@lanl.gov

H. Lu

School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK 74078e-mail: hongbin@okstate.edu

Y. Huang

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801e-mail: huang9@uiuc.edu

J. Appl. Mech 72(2), 157-164 (Mar 15, 2005) (8 pages) doi:10.1115/1.1831298 History: Received October 27, 1999; Revised June 17, 2004; Online March 15, 2005
Copyright © 2005 by ASME
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Schematics of the web slitting process
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Steady crack growth due to symmetrically applied concentrated tractions on the crack surface at a fixed distance, c, behind the crack tip
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Geometric profile of the slitter and contact condition
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Variation of the speed factor as a function of the web speed for different Poisson’s ratios
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Variation of the shape factor as a function of the distance behind crack tip for different values of α
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Relation between the fracture toughness of the web material, KIC, and the parameter α
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Contour plots of the three stress components of the dynamic steady-state stress field surrounding the slitter
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Contour plots of the effective stress, σeff, for (a) v/cs=0.1 and (b) v/cs=0.3



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