Relationship Between the External Force and the Specific Work of Fracture R for Steady-State Tearing and Peeling of Elastoplastic Materials
Author:
Liu J. H.1, Atkins A. G.1, Jeronimidis G.1
Affiliation:
1. Department of Engineering, University of Reading, Whiteknights, P. O. Box 225, Reading RG6 2AY, UK
Abstract
A simple relationship is obtained between the external force F and the fracture toughness R for thin sheets in steady state elastoplastic combined tearing and peeling along self-similar paths. The relationship depends only on the material properties (E, σy, and α for an elastoplastic material with linear hardening) and strip cross section (B and H). An earlier analysis (which incorporates transient tearing and peeling) requires lengthy computations over the whole length of the strip. The present analysis avoids that complication. Experiments in steady-state agree with the theory.
Publisher
ASME International
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference7 articles.
1. Atkins, A. G., and Mai, Y. W., 1988, Elastic and Plastic Fracture—Metals, Polymers, Ceramics, Composites, Biological Materials, Ellis Horwood, Chichester, UK. 2. Liu, J. H., Atkins, A. G., and Jeronimidis, G., 1996, “Theoretical Analysis of Large Deformation Simultaneous Tearing and Peeling of Elastoplastic Materials,” Proc. Inst. Mech. Eng., 210, pp. 433–444. 3. Mai, Y. W., and Cotterell, B., 1984, “The Essential Work of Fracture for Tearing of Ductile Metals,” Int. J. Fract., 24, pp. 229–236. 4. Muscat-Fenech, C. M., and Atkins, A. G., 1994, “Elastoplastic Trouser Tear Testing of Sheet Materials,” Int. J. Fract., 67, pp. 69–80. 5. Muscat-Fenech, C. M., and Atkins, A. G., 1994, “Elastoplastic Convergent and Divergent Crack Paths in Tear Testing of Sheet Materials,” Fatigue Fract. Eng. Mater. Struct., 17, pp. 133–143.
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