کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10627654 990067 2011 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microcracking of composites reinforced by stitched multiaxials subjected to cyclical hygrothermal loadings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Microcracking of composites reinforced by stitched multiaxials subjected to cyclical hygrothermal loadings
چکیده انگلیسی
Microcracking of polymer matrix composites reinforced by multiaxial multi-ply stitched carbon preforms submitted to cyclical purely hygrothermal loading is analyzed. The laminates are manufactured by liquid resin infusion (LRI). The stitching induces deviations in fibre layout and creates openings which become resin-rich regions after the resin infusion. The interaction between resin-rich regions and microcracks induced by the hygrothermal cycles was investigated by 2D metallographic micrography and X-ray microtomography. Specific microcracking process was found to occur in this type of material. The occurrence of cracks was quantified and the morphology of the 3D crack network studied. The nature of the stitching yarn and the size of the diamond-shaped resin-rich regions were identified as having a major influence on laminate microcracking after ageing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 42, Issue 4, April 2011, Pages 425-437
نویسندگان
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