K. Oguni et G. Ravichandran, An energy-based model of longitudinal splitting in unidirectional fiber-reinforced composites, J APPL MECH, 67(3), 2000, pp. 437-443
Citations number
21
Categorie Soggetti
Mechanical Engineering
Journal title
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
Unidirectional fiber-reinforced composites are often observed to fail in a
longitudinal splitting mode in the fiber direction under far-field compress
ive loading with weak lateral confinement. An energy-based model is develop
ed based on the principle of minimum potential energy and the evaluation of
effective properties to obtain an analytical approximation to the critical
stress for longitudinal splitting. The analytic estimate for the compressi
ve strength is used to illustrate its dependence on material properties, su
rface energy, fiber volume fraction, fiber diameter, and lateral confining
pressure. The predictions of the model show good agreement with available e
xperimental data.