Matches in SemOpenAlex for { <https://semopenalex.org/work/W1565968657> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W1565968657 abstract "The water absorption characteristics and the degradation of mechanical properties of a unidirectional glass/epoxide composite have been studied during hygrothermal ageing at 95-100% relative humidity and temperatures. up to 80[degrees]C. Initial water absorption behaviour approximately followed Fick' s prediction at temperatures up to 45[degrees]C. At 80[degrees]C substantial deviation from Fick's laws occurred from the beginning. No equilibrium water uptake level could be obtained at any of the temperatures studied.Using Scanning Electron Microscopy, unreacted curing agent was detected as heterogeneities embedded in the resin matrix. Also, various microstructural defects, in the form of voids, cracks and debonding, were observed, and these changes are explained by postulating a degradation mechanism involving interaction between the unreacted curing agent and water.The absorbed water lowered the 3-point flexural strength and 'the short beam horizontal interlaminar shear strength significantly at all temperatures studied. The fall in 3-point flexural modulus of specimens exposed at temperatures up to 45° C was negligible, but specimens which were exposed at 80[degrees]C showed a moderate fall.4-point bending stresses were applied to some specimens during ageing. These stresses did not affect the diffusivity, but Induced damage on the compressive surfaces. The extent of damage degraded the mechanical integrity further. Pre-stressing had no effect, but post-loading wet specimens caused fibre kinking.Removal of absorbed water restored the fibre-resin interface and much of the loss in flexural properties. However, surface damage caused by applied loads increased the loss in residual flexural strength and modulus.A supplimentary short project carried out with an unidirectional carbon/epoxide composite Showed much simpler absorption charateristics at 80[degrees]C and 95-100% R.H.. The retention of the flexural modulus. of wet specimens tested at 80[degrees]C was extremely good, but the loss in flexural strength was substantial." @default.
- W1565968657 created "2016-06-24" @default.
- W1565968657 creator A5081952116 @default.
- W1565968657 date "1983-01-01" @default.
- W1565968657 modified "2023-09-24" @default.
- W1565968657 title "Hygrothermal degradation of fibre reinforced epoxide resins under stress" @default.
- W1565968657 hasPublicationYear "1983" @default.
- W1565968657 type Work @default.
- W1565968657 sameAs 1565968657 @default.
- W1565968657 citedByCount "0" @default.
- W1565968657 crossrefType "dissertation" @default.
- W1565968657 hasAuthorship W1565968657A5081952116 @default.
- W1565968657 hasConcept C104779481 @default.
- W1565968657 hasConcept C121332964 @default.
- W1565968657 hasConcept C132976073 @default.
- W1565968657 hasConcept C151420433 @default.
- W1565968657 hasConcept C158960510 @default.
- W1565968657 hasConcept C159985019 @default.
- W1565968657 hasConcept C166595027 @default.
- W1565968657 hasConcept C168314062 @default.
- W1565968657 hasConcept C177229083 @default.
- W1565968657 hasConcept C178405089 @default.
- W1565968657 hasConcept C192562407 @default.
- W1565968657 hasConcept C26771246 @default.
- W1565968657 hasConcept C97355855 @default.
- W1565968657 hasConceptScore W1565968657C104779481 @default.
- W1565968657 hasConceptScore W1565968657C121332964 @default.
- W1565968657 hasConceptScore W1565968657C132976073 @default.
- W1565968657 hasConceptScore W1565968657C151420433 @default.
- W1565968657 hasConceptScore W1565968657C158960510 @default.
- W1565968657 hasConceptScore W1565968657C159985019 @default.
- W1565968657 hasConceptScore W1565968657C166595027 @default.
- W1565968657 hasConceptScore W1565968657C168314062 @default.
- W1565968657 hasConceptScore W1565968657C177229083 @default.
- W1565968657 hasConceptScore W1565968657C178405089 @default.
- W1565968657 hasConceptScore W1565968657C192562407 @default.
- W1565968657 hasConceptScore W1565968657C26771246 @default.
- W1565968657 hasConceptScore W1565968657C97355855 @default.
- W1565968657 hasLocation W15659686571 @default.
- W1565968657 hasOpenAccess W1565968657 @default.
- W1565968657 hasPrimaryLocation W15659686571 @default.
- W1565968657 hasRelatedWork W1982150687 @default.
- W1565968657 hasRelatedWork W1990798322 @default.
- W1565968657 hasRelatedWork W1998436230 @default.
- W1565968657 hasRelatedWork W2001411120 @default.
- W1565968657 hasRelatedWork W2007698206 @default.
- W1565968657 hasRelatedWork W2016378320 @default.
- W1565968657 hasRelatedWork W2016940328 @default.
- W1565968657 hasRelatedWork W2046024830 @default.
- W1565968657 hasRelatedWork W2060411948 @default.
- W1565968657 hasRelatedWork W2082183244 @default.
- W1565968657 hasRelatedWork W2083796526 @default.
- W1565968657 hasRelatedWork W2332650118 @default.
- W1565968657 hasRelatedWork W2334831759 @default.
- W1565968657 hasRelatedWork W2607247913 @default.
- W1565968657 hasRelatedWork W2908341647 @default.
- W1565968657 hasRelatedWork W3110740673 @default.
- W1565968657 hasRelatedWork W3170674098 @default.
- W1565968657 hasRelatedWork W3174389761 @default.
- W1565968657 hasRelatedWork W808834824 @default.
- W1565968657 hasRelatedWork W156043710 @default.
- W1565968657 isParatext "false" @default.
- W1565968657 isRetracted "false" @default.
- W1565968657 magId "1565968657" @default.
- W1565968657 workType "dissertation" @default.