Experimental Stress Intensity Factor Measurements in Orthotropic Composites

J Tirosh; CA Berg

doi:10.1520/STP35515S

SYMPOSIA PAPER Published: 01 January 1974

STP35515S

Experimental Stress Intensity Factor Measurements in Orthotropic Composites

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A new experimental technique is presented for studying the toughness of anisotropic plane bodies. The technique is based upon the Path Independent Integral concept (Rice, 1968) where a strain energy distribution is line-integrated (via a string of strain gages) along a convenient path which yields the singular behavior of the cracked body. The use of this technique is demonstrated for an isotropic (aluminum) plate and an orthotropic (fiber glass/epoxy) composite with favorable agreement with the analytical and numerical (finite elements) counterpart solutions.

Author Information

Tirosh, J

Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa, Israel

Berg, CA

University of Pittsburgh, Pittsburgh, Pa.

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Details

Developed by Committee: D30

Pages: 663–673

DOI: 10.1520/STP35515S

ISBN-EB: 978-0-8031-4639-6

ISBN-13: 978-0-8031-0308-5

Experimental Stress Intensity Factor Measurements in Orthotropic Composites

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