Reducing Free Edge Effect on Laminate Strength by Edge Modification
- 1 February 1991
- journal article
- research article
- Published by SAGE Publications in Journal of Composite Materials
- Vol. 25 (2) , 142-161
- https://doi.org/10.1177/002199839102500202
Abstract
A method for reducing free edge interlaminar stresses in quasi-isotropic laminates is investigated. This method involves creating narrow and shallow notches along the straight edges of a coupon specimen in order to disrupt the load path along the free edges. Experimental results indicate that laminate strength can be increased significantly. A failure criterion for laminate specimens with notched edges is introduced to predict the strength.Keywords
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