کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
770692 | 1463101 | 2014 | 13 صفحه PDF | دانلود رایگان |
• The mode III interlaminar fracture of composite laminates was investigated.
• Influence of fiber volume fraction on the critical mode-III strain energy release rate.
• Three dimensional finite element analyses based on virtual crack closure technique and cohesive elements.
• Crack length dependency of critical mode-III strain energy release rate.
The mode III interlaminar fracture of composite laminates was investigated with the modified split cantilever beam test. Specimens were made of E-glass/epoxy laminates with 30%, 46% and 55% of fiber volume fraction. The suitability of the current test was validated by virtual crack closure and mixed-mode cohesive zone model techniques. It was observed that more than 94% of total strain energy release rate was allocated to mode-III fracture toughness. It was found that measured GIIIC corresponding to onset of crack propagation and also its crack length dependency, substantially increased with decreasing fiber volume fraction of specimens.
Journal: Engineering Fracture Mechanics - Volume 127, September 2014, Pages 267–279