Accession Number : AD0716515

Title :   Engineering Method of Evaluating the Supporting Strength of Structural Elements from Glass Reinforced Plastic Operating in Conditions of Temporary Unsteady Heating,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Lozinskii,M. G. ; Smirnov,V. A. ; Malakhov,N. A. ; Vishevskii,G. E.

Report Date : 19 OCT 1970

Pagination or Media Count : 16

Abstract : The combination of high mechanical features of glass reinforced plastic with low temperature transfer allows their successful use in highly stressed constructions, which operate briefly at elevated temperatures (of the order of several thousands of degrees). However, the inadequate development of methods of determining the supporting power of fiberglass under these conditions of service hampers the designing of such constructions. Attempts to create anaylytical or numerical methods of calculating the supporting power of such material encounter considerable difficulties connected with the complexity of constructing a physical model of the weakening of glass reinforced plastic under conditions of intensive unsteady heating and solving the system of equations sufficiently describing phenomena occurring in this case in the object under study, and also the absence of data about the temperature dependence of thermophysical and mechanical characteristics of polymeric material. (Author)

Descriptors :   (*REINFORCED PLASTICS, STRUCTURAL MEMBERS), GLASS TEXTILES, EPOXY RESINS, PHENOLIC PLASTICS, MECHANICAL PROPERTIES, TEMPERATURE, USSR

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE