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RESEARCH PAPERS

Experimental Investigation of the Angled Elliptic Notch Problem in Tension

[+] Author and Article Information
H. C. Wu, R. F. Yao, M. C. Yip

Division of Materials Engineering, The University of Iowa, Iowa City, Iowa

J. Appl. Mech 44(3), 455-461 (Sep 01, 1977) (7 pages) doi:10.1115/1.3424100 History: Received September 01, 1976; Revised March 01, 1977; Online July 12, 2010

Abstract

Polymethylmethacrylate (PMMA) plates with angled elliptic notch are experimentally investigated under monotonic tension. The major interests of this investigation are the direction of crack initiation on the boundary of the notch and the critical stress that causes the crack initiation. It is found that the “fracture angle” in this investigation is generally smaller than that obtained from PMMA plate with slit crack which was reported in the literature. Furthermore, the paths of crack propagation are experimentally determined and “lance-like” fracture surface is observed.

Copyright © 1977 by ASME
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