Correlation of Tensile and Bending Strength of Composites With a Circular Hole

[+] Author and Article Information
Yi Zhao, Su-Seng Pang, Chihdar Yang

Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803

J. Eng. Mater. Technol 118(4), 542-547 (Oct 01, 1996) (6 pages) doi:10.1115/1.2805954 History: Received June 18, 1995; Revised February 04, 1996; Online November 27, 2007


While significant studies have been conducted on composites containing a circular or an elliptic hole under tensile loading, few investigations have been reported on notched composites under bending due to the complex nature of the problem. In this paper, a correlation of strengths of orthotropic plates containing a circular hole under tension and bending has been proposed based on Lekhnitskii’s solutions for infinite width plates. Finite element analysis has been performed to verify the theoretical correlation. Uniaxial tension and four-point bending tests have also been conducted on Scotchply samples with circular holes of various sizes. A good agreement has been observed among the theoretical, FEA, and experimental results.

Copyright © 1996 by The American Society of Mechanical Engineers
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