Size Effect on Flexural Strength of Fiber-Composite Laminates

[+] Author and Article Information
Zdeněk P. Bažant

Northwestern University, 2145 Sheridan Road (CEE), Evanston, IL 60208

Yong Zhou, Drahomı́r Novák, Isaac M. Daniel

Northwestern University, 2145 Sheridan Road (CEE), Evanston, IL 60208

J. Eng. Mater. Technol 126(1), 29-37 (Jan 22, 2004) (9 pages) doi:10.1115/1.1631031 History: Received December 02, 2002; Revised August 01, 2003; Online January 22, 2004
Copyright © 2004 by ASME
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Grahic Jump Location
Stress redistribution in flexure caused by a boundary layer of cracking
Grahic Jump Location
Optimum fits of existing test data on modulus of rupture versus relative size, in dimensionless coordinates, by (a) deterministic energetic formula; (b) energetic-statistical formula; (c) Weibull size effect formula with m=5; and (d) Weilbull size effect formula with m=30
Grahic Jump Location
Optimum fits of individual data sets by different formulas. (a) deterministic energetic size effect formula; (b) energetic-statistical size effect formula; (c) Weibull theory for m=5; and (d) Weibull theory for m=30. Numbers from 1 to 9 correspond to the data sets showed in Fig. 2.
Grahic Jump Location
Energetic-statistical formula of Jackson’s angle-ply data (actual scale)
Grahic Jump Location
The curve of elastica used in calculations for Table 5




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