Environmental Effects on Graphite-Epoxy Fatigue Properties
نویسندگان
چکیده
منابع مشابه
Environmental effects on mechanical properties of glass/epoxy and fiber metal laminates, Part II: Isothermal aging
The aim of this study is to investigate effects of isothermal aging on mechanical properties of fiber metal laminates (FMLs) and glass/epoxy composites. For this purpose, both materials were fabricated using the wet lay-up manufacturing technique under vacuum pressure. Both the glass/epoxy composites and the FML specimens were then subjected to isothermal aging (130°C, dried air) for up to 5 we...
متن کاملEnvironmental Effects on Mechanical Properties of Glass/Epoxy and Fiber Metal Laminates, Part I: Hygrothermal Aging
In this article, the effect of hygrothermal aging on mechanical properties of fiber metal laminates (FMLs) and E-glass/epoxy (GE) composites is investigated. First, FML and GE specimens were built using wet lay-up technique under vacuum pressure. Hygrothermal aging simulation was then carried out on both specimen types in distilled water at a constant temperature of 90 °C for 5 weeks. The resul...
متن کاملInitiation and Display of Delamination Failure During Fatigue of Graphite Fiber-Epoxy Composites
Laminar microdiscontinuities which lead to the delamination of two unidirectional layup graphite fiber-epoxy composite materials during fatigue have been characterized, and discontinuity geometry and type related to the fatigue lifetime of specimens in which they occur. Two types of discontinuities were commonly observed: voids and organic inclusions consisting of regions of excess hardener. A ...
متن کاملFatigue Life of Graphite/epoxy Laminates Subjected to Tension- Compression Loadings
A recent two-parameter fatigue model, aimed at the prediction of the fatigue behaviour of composite materials, was applied to fatigue results available in the literature, concerning graphite/epoxy laminates subjected to tension-compression loadings. It was found that the model, successfully applied in the case of tension-tension and compression-compression fatigue, also works when the sign of s...
متن کاملenvironmental effects of gol-e-gohar iron ore mine on groundwater of the area
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
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ژورنال
عنوان ژورنال: Journal of Spacecraft and Rockets
سال: 1976
ISSN: 0022-4650,1533-6794
DOI: 10.2514/3.57075