کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
833430 | 908143 | 2007 | 8 صفحه PDF | دانلود رایگان |
Experimental characterization of the effect of cut-edge on the tensile, compressive and flexure properties in the braiding direction of the 3D braided composites is presented. The geometrical microstructure models of the uncut-edge and cut-edge composites are established for calculating the remainder lengths of braider yarns in the composites. The integrity of fiber architecture as reinforcement is destroyed for the cut-edge composites. So in order to determining the loss of the mechanical properties for the composites specimens, four schemes of cut-edge are discussed comparatively, single-edge cut on the width, single-edge cut on the thickness, both-edge cut on the width, edge cut on the thickness and width. Experimental results are coincident with the deduction based on the remainder lengths of braid yarns. The cut-edge on the width of specimen barely affects the bending properties of coupons, whereas, cut-edge on the thickness lowers the flexural modulus. The flexural modulus is reduced more when surface cut on the thickness is carrying tensile load under bending.
Journal: Materials & Design - Volume 28, Issue 9, 2007, Pages 2417–2424