Accession Number : ADA303133
Title : Measurement of Displacement Around Holes in Composite Plates Subjected to Quasi-Static Compression.
Descriptive Note : Final rept. 1 Jun-31 May 82,
Corporate Author : VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIEN CE AND MECHANICS
Personal Author(s) : Duke, John C., Jr. ; Post, Daniel ; Czarnek, Robert ; Asundi, Anand
PDF Url : ADA303133
Report Date : 31 MAY 1982
Pagination or Media Count : 59
Abstract : This study is part of a continuing exploration of the structural behavior of fiber-reinforced composite materials by NASA (Langley). The dual purposes of the present research are to (1) develop a whole-field, high sensitivity optical technique to measure load-induced changes of thickness of composite plates, and (2) measure changes of thickness of three composite plates, each with a central hole of different prescribed size, as a function of applied compressive loads. The specimens were graphite-epoxy plates.
Descriptors : *FIBER REINFORCED COMPOSITES, *GRAPHITE EPOXY COMPOSITES, COMPRESSION, THICKNESS, NONDESTRUCTIVE TESTING, OPTICAL DETECTION, DISPLACEMENT, COMPOSITE STRUCTURES, SENSITIVITY, PLATES, STRUCTURAL RESPONSE, HOLES(OPENINGS), STRAIN GAGES, COMPRESSIVE STRENGTH, AXIAL LOADS, OPTICAL FILTERS, HOLOGRAMS, MOIRE EFFECTS.
Subject Categories : Laminates and Composite Materials
Distribution Statement : APPROVED FOR PUBLIC RELEASE