NDLI: Hygrothermal damage mechanisms in graphite-epoxy composites

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Hygrothermal damage mechanisms in graphite-epoxy composites

Content Provider	NASA Technical Reports Server (NTRS)
Author	Mauri, R. E. Warren, W. J. Crossman, F. W.
Copyright Year	1979
Description	T300/5209 and T300/5208 graphite epoxy laminates were studied experimentally and analytically in order to: (1) determine the coupling between applied stress, internal residual stress, and moisture sorption kinetics; (2) examine the microscopic damage mechanisms due to hygrothermal cycling; (3) evaluate the effect of absorbed moisture and hygrothermal cycling on inplane shear response; (4) determine the permanent loss of interfacial bond strength after moisture absorption and drying; and (5) evaluate the three dimensional stress state in laminates under a combination of hygroscopic, thermal, and mechanical loads. Specimens were conditioned to equilibrium moisture content under steady exposure to 55% or 95% RH at 70 C or 93 C. Some specimens were tested subsequent to moisture conditioning and 100 cycles between -54 C and either 70 C or 93 C.
File Size	8056789
Page Count	157
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800004915
Archival Resource Key	ark:/13960/t2m669s9n
Language	English
Publisher Date	1979-12-01
Access Restriction	Open
Subject Keyword	Composite Materials Microcracks Finite Element Method Hygroscopicity Stress Analysis Mechanical Properties Thermal Cycling Tests Graphite-epoxy Composites Thermodynamic Properties Laminates Expansion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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