The effect of moisture on a glass/epoxy composite /
a lower interfacial shear strength than the system with the
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | a lower interfacial shear strength than the system with the absorption; however, the weaker interface showed twice as almost all of the failure occurred by debonding at the and propagates. Also, micro-indentation tests were done to by the absorbed moisture. Insitu observations show that compatible system can be explained by changes in residual could be explained by relaxation of thermal residual stresses decrease in the critical stress to cause transverse cracking different fiber sizings, one epoxy compatible and one vinyl- epoxy-compatible sizing. The critical shear interfacial ester compatible, were immersed in distilled water to give a fiber/matrix interface at heterogeneities in the incompatible sizing is probably due to changes in the little degradation due to moisture absorption. The slight measure interfacial shear strength. Micro-Indentation microstructure which coalesced into transverse cracks. much degradation due to moisture. The decrease in the epoxy of laminate composites in an electron microscope. Using this procedure was developed to perform transverse tensile tests Research was done to determine the effect of moisture on the residual stresses plus some degradation of the interface. results show that the system with the incompatible sizing had Results were analyzed to see if moisture modifies the failure saturation level of moisture absorption. Both aged and scenario or the ply stress levels at which damage initiates shear stress of both systems was decreased by moisture strength of a glass/epoxy composite. Specimens with two stresses. However, the decrease in the system with the technique, one can directly observe the failure scenario. the incompatible sizing was weaker. Both systems showed The transverse tensile tests also showed that the system with transverse tensile strength and the interfacial shear unaged samples were tested in two different ways. A new |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xi, 72 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |