Journal
COMPOSITE INTERFACES
Volume 7, Issue 3, Pages 227-242Publisher
VSP BV
DOI: 10.1163/156855400300185333
Keywords
E-glass woven fabric reinforced vinyl ester composites; mode I interlaminar fracture toughness; silane coupling agent; stability of crack propagation
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A round-robin test programme has been carried out to characterise the mode I interlaminar fracture behaviour of E-glass woven fabric reinforced vinyl ester matrix composites. Special emphasis has been placed on the effect of silane coupling agent on the stability of interlaminar crack propagation and fracture toughness. Sixteen laboratories participated in this programme. Each laboratory was supplied with composite laminates of thicknesses of its own choice and conducted-the tests according to its own procedures. The results showed that variations in interlaminar fracture toughness between laboratories were very large in spite of slight differences in the test procedures used, such as specimen dimensions, test speed and data reduction schemes. Nevertheless, the general trends were clearly identified with respect to different silane coupling agents. Other observations and the implications are discussed.
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