Accession Number : ADA190929

Title :   A Piecewise Quadratic Strength Tensor Theory for Composites.

Descriptive Note : Final technical rept. 1 Oct 86-30 Sep 87,

Corporate Author : NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Personal Author(s) : Tang, P Y

PDF Url : ADA190929

Report Date : 30 Sep 1987

Pagination or Media Count : 60

Abstract : Develop the piecewise quadratic strength tensor theory for composite materials and demonstrate its applicability to the available biaxial fracture data on composites. The theory will have application to current composite structures of Naval Ocean Systems Center's interest such as transducers and future composite structures such as torpedo hull section, Vertical Launch ASROC (VLA) nosecaps, and tethered deep submergence structures. The theory can also be used with a wide variety of other NAVY structures such as aircraft and submarine substructures. Keywords: Multiaxial failure theory, Composite strength, Strength tensor theory, Orthotropic material, Transversely isotropic material, Graphite/Epoxy, Glass/Epoxy, Graphite/Aluminum, Graphite particulate.

Descriptors :   *COMPOSITE MATERIALS, AIRCRAFT, COMPOSITE STRUCTURES, GRAPHITE, BIAXIAL STRESSES, FRACTURE(MECHANICS), COMPOSITE MATERIALS, ALUMINUM, TENSORS, QUADRATIC EQUATIONS, ALUMINUM, GRAPHITED MATERIALS, AIRFRAMES, DEEP SUBMERGENCE, TETHERING, SUBMARINES, HULLS(MARINE), TORPEDO COMPONENTS, ANTISUBMARINE AMMUNITION, LAUNCHING, UNDERWATER ROCKETS, TENSORS, TRANSDUCERS

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE