کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1578157 1514814 2011 5 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of stacking sequence on R-curve behavior of glass/epoxy DCB laminates with 0°//0° crack interface
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effect of stacking sequence on R-curve behavior of glass/epoxy DCB laminates with 0°//0° crack interface
چکیده انگلیسی

In this study, the influence of stacking sequence on mode I delamination resistance (R-curve) behavior of E-glass/epoxy laminated composites with an initial delamination between 0°//0° interface is experimentally investigated. To this end, symmetric double cantilever beam (DCB) specimens of stacking sequences; [0°12]s, [(0°/90°)3]2s and [0°/90°/ ± 45°/90°/0°]2s with two initial crack lengths are used. A pronounced R-curve behavior is observed on all stacking sequences due to locating delamination between two similar layers. Comparison of R-curve behavior of cross-ply and quasi-isotropic DCB specimens with unidirectional (UD) one reveals the significant effect of the non-dimensional coupling parameter, Dc=D122/D11D22, on the R-curves. Thus, three main outputs of R-curves could be summarized as; (a) the initiation delamination toughness (GIc-init) of multidirectional (MD) laminates are much lower than that of UD one, (b) stacking sequence has no effect on the fiber bridging length in DCB specimens, and (c) the greater the Dc value of a laminate, the higher the steady-state propagation toughness (GIc-prop) is.


► Interlaminar fracture toughness in MD laminates.
► Effect of remote lay-ups on delamination toughness.
► R-curve behavior of delaminated laminates with 0//0 interface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 529, 25 November 2011, Pages 265–269
نویسندگان
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