Deterioration in Strength of Brittle-State Porous Bodies

[+] Author and Article Information
P. C. Huang

Space Systems Division, The Martin Company, Baltimore, Md.

J. Appl. Mech 32(1), 43-46 (Mar 01, 1965) (4 pages) doi:10.1115/1.3625781 History: Received September 16, 1963; Online September 15, 2011


A theory is presented to predict the deterioration in strength for a structure composed of a brittle-state porous material which has been subjected to a damaging tension field. Based on the theory, a degradation factor can be formulated as a means of evaluating the residual strength numerically. A proposed material function for a brittle-state porous medium was evaluated experimentally and was found to be satisfactory for an alumina material. The modulus of elasticity at room temperature of the same material has been found to increase with the density ratio in semi-logarithmic form.

Copyright © 1965 by ASME
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