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Viscoelastic Panel Flutter -- Stability Probabilities Of Failure And Survival Times

By Cristina E. Beldica, Harry H. Hilton and Dhirendra V. Kubair

Abstract

Light weight flexible structures subjected to aeroelastic conditions need to be analyzed only for time independent stability co#HT3cqEP (Bisplingho# et al. 1955). Similarvisco elastic structures,o# theo#ec7 hand, exhibitdegradatio#T in timeo# mo duli as well as o# failure pro# erties and are subject to di#erent stability criteria and additio#cq survivabilityco#T37k eratio# in time absentfro# equivalentelasticpro#7Pco (Beldica et al. 1998a, 1998b, 1999; Hilto# 1957, 1960; Hilto# et al. 1993a, 1999). Po#TDTP matrixco#r o##rix have beco#& the structural materialso# cho#ET becauseo# their light weight and relatively high failure stresses whichpro duce very attractive strength to weightratio#k Eventho#RE their initial behavio# is elastic,co#s o##sti and metals at elevated temperatures requirevisco elastic stress-strain and failure analyses. At these co#sec tio#s elastic analyses are inadequate because they failto take into acco#k t materialpro# erty degradatio# time dependencieso# mo duli and..

Year: 2001
OAI identifier: oai:CiteSeerX.psu:10.1.1.32.6172
Provided by: CiteSeerX
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