Analysis of a hybrid, unidirectional buffer strip laminateA method of analysis capable of predicting accurately the fracture behavior of a unidirectional composite laminate containing symmetrically placed buffer strips is presented. As an example, for a damaged graphite/epoxy laminate, the results demonstrate the manner in which to select the most efficient combination of buffer strip properties necessary to inhibit crack growth. Ultimate failure of the laminate after crack arrest can occur under increasing load either by continued crack extension through the buffer strips or the crack can jump the buffer strips. For some typical hybrid materials it is found that a buffer strip spacing-to-width ratio of about four to one is the most efficient.
Document ID
19840027665
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dharani, L. R. (Missouri-Rolla, University Rolla, MO, United States)
Goree, J. G. (Clemson University; Clemson, SC, United States)