Use of Shear Lag for Composite Microstress Analysis - Linear Array.
Interim rept. Jan-Aug 83,
CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE
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The task of finding shear distributions on damaged composites analytically be means of the theory of elasticity is prohibitively difficult, so approximate techniques are generally employed. The most widely used is shear lag theory. This theory contains a parameter representing the shear coupling between fibers that has been difficult to evaluate in the past. The present paper evaluates this parameter for a linear array of fibers. In the limiting case of small fiber diameter to fiber spacing ratio and large matrix thickness to fiber diameter ratio an analytical solution is possible and is provided in this paper. For other geometries the solution is obtained experimentally. It is found the assumption usually made for the parameter is rather far off for most geometries of practical interest. Author
- Laminates and Composite Materials