کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
820247 1469527 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage occurrence at edges of non-crimp-fabric thin-ply laminates under off-axis uniaxial loading
ترجمه فارسی عنوان
وقوع خسارت در لبه های ورقه نازک ورقه های غیر تراشنده تحت بار محوری غیر محوری
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

Thin-ply based laminates are a promising development in composite materials and are expected in the near future to outperform conventional laminates in mechanical performance. A rational design with thin plies requires understanding the effect of ply thickness on each damage mechanism. This paper presents an experimental investigation into damage occurrence in a quasi-isotropic laminate made from thin-ply, bi-axial, Non-Crimp-Fabric (NCF), under different off-axis uniaxial loadings. The NCF layers are positioned through the laminate thickness creating two regions, namely THICK and THIN (with and without ply clustering). Then, the onset and progress of three damage mechanisms (transverse matrix cracking, matrix crack induced delamination and free-edge delamination) for both regions are analyzed by monitoring the specimen’s free-edge. The results show that the critical region where damage occurs is that with ply clustering (THICK), whereas delamination originating from matrix cracks or free edge effects are delayed or even suppressed in the THIN region.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 98, 27 June 2014, Pages 44–50
نویسندگان
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