Effect of Ply Orientation on Residual Stresses and Their Influence on Mode I Fracture Toughness of Glass-Epoxy Composites with ۰°//۰° Crack Interface
- سال انتشار: 1400
- محل انتشار: مجله علم مواد و مهندسی ایران، دوره: 18، شماره: 4
- کد COI اختصاصی: JR_IJMSEI-18-4_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 117
نویسندگان
Umarfarooq Maktedar Abdulkhadar
SDM College of Engineering & Technology, Dharwad
Patil Somalingana Shivakumar Gouda
SDM College of Engineering & Technology, Dharwad
Jain College of Engineering, Belagavi
Gonal Basavaraja Veeresh Kumar
National Institute of Technology, Tadepalligudem, Andhra Pradesh,
Nagaraj Ramalingyya Banapurmath
B.V.B. College of Engineering and Technology, KLE Technological University,
چکیده
The energy release rate for delamination in a laminated composite is supposed to be the material property being considered as independent of non-material property variables. However, Mode I fracture toughness(GI) is found to vary with lamina arrangement, geometrical dimensions, and process-induced stresses. In this investigation, the influence of lamina stacking arrangement on process-induced stresses and their effects on GI of laminated composites are studied. Unidirectional (UD) ([۰]۱۶) and cross-ply ([۹۰۲/۰۶]s, [۹۰۴/۰۴]s and [۹۰۶/۰۲]s) Glass/ epoxy (GE) composites with the delamination plane at ۰◦//۰◦ were prepared by manual layup method and post-cured at ۱۲۰ °C for ۴ hours. GI of composite laminates were experimentally determined using a double cantilever beam(DCB) specimen as per ASTM D ۵۵۲۸. The slitting method was applied to determine the Process-induced stresses in GE laminates. The stacking sequence of laminas was found to have a noticeable effect on the state of residual stresses and GI of GE laminates. Residual stresses do not have much influence on the GI for delamination initiation, whereas GI for the crack propagation was found to increase with a gradual increase in compressive residual stresses in GE laminates.کلیدواژه ها
Residual stresses, Mode I interlaminar fracture toughness, slitting methodاطلاعات بیشتر در مورد COI
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