Height-tapered double cantilever beam specimen for study of rate effects on fracture toughness of compositesLoading rate effects on the mode I delamination fracture toughness of AS4/3501-6 graphite/epoxy are presently studied by means of a height-tapered double-cantilever beam specimen whose height contour is designed to furnish a slightly decreasing compliance with increasing crack length, in order to yield a stable and smooth crack propagation at high loading rates. This specimen geometry also allows much higher crack propagation velocities to be obtained with either uniform or width-tapered double cantilever beam specimens.
Document ID
19890028919
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Yaniv, Gershon (Northwestern Univ. Evanston, IL, United States)
Daniel, Isaac M. (Northwestern University Evanston, IL, United States)