Accession Number : AD0285148

Title :   MATERIAL-GLASS REINFORCED PLASTICS-COMPRESSION JIGS-EVALUATION OF

Corporate Author : GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s) : KASTROP,C.J.

Report Date : 10 SEP 1962

Pagination or Media Count : 1

Abstract : Presently used test procedures for determining compression strength of glass-reinforced laminates seem to have some advantages and some disadvantages. Therefore, comparative data was obtained from several test procedures to determine which one produces the most accurate and reproducible data with a minimum of test set-up and test time involved. Eight Conolon 506-81 laminates were fabricated and specimens for each test jig evaluation were cut at random from the 8 laminates to lessen the effect of variation between laminates on a single set of data. Three basic test jigs were evaluated: (1) Convair sheet metal jig; (2) LP-406b jig; and (3) ARTC-W-64 jig. In addition to the standard rectangular test specimens recommended for the LP-406b and ARTC W-64 jigs, a flared-end (modified) specimen was also evaluated for each of these jigs. The evaluation consisted chiefly of comparisons of type of failure, ultimate compressive strength, and modulus of elasticity (stress-strain curves) at room temperature and 500 F. (Author)

Descriptors :   *LAMINATES, *PLASTICS, COMPOSITE MATERIALS, ELASTIC PROPERTIES, FAILURE (MECHANICS), MECHANICAL PROPERTIES, REINFORCING MATERIALS, STANDARDIZATION, TENSILE PROPERTIES, TEST EQUIPMENT, TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE