# COMPRESSION BUCKLING RESPONSE OF TOW-PLACED, VARIABLE STIFFNESS COMPOSITE PANELS WITH SINE CURVED AND TANGENT CURVED FIBERS

> Title: COMPRESSION BUCKLING RESPONSE OF TOW-PLACED, VARIABLE STIFFNESS COMPOSITE PANELS WITH SINE CURVED AND TANGENT CURVED FIBERS Page Range: p.593-598 Author(s): Qin Yongli; Zhu Yingdan; Yu Yueping; Yan Chun; Zhang Xiaoqing; Fan Xinyu File size: Download the pdf (subscribers only) Buy the...

Canonical URL: https://polymerjournals.com/compression-buckling-response-of-tow-placed-variable-stiffness-composite-panels-with-sine-curved-and-tangent-curved-fibers/
Published: 2013-09-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: COMPRESSION BUCKLING RESPONSE OF TOW-PLACED, VARIABLE STIFFNESS COMPOSITE PANELS WITH SINE CURVED AND TANGENT CURVED FIBERS**
 Page Range: p.593-598
 Author(s): Qin Yongli; Zhu Yingdan; Yu Yueping; Yan Chun; Zhang Xiaoqing; Fan Xinyu
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc21-9&JournalID=102071&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 21
 Issue No: No.9

**Abstract**
 Tailoring of composite laminated panels by Variable Angle Tow (VAT) steering fibres in their optimal spatial orientations provides a unique opportunity to maximize performance. Increased buckling response of the laminates by VAT steering technique may directly provide significant weight savings by redistributing loads in a benign manner. The aim of this work is to design tow-placed, variable stiffness composite panels with resistance to buckling by steering sine curved and tangent curved fibres. Buckling behaviours of two types of VAT panels and three typical types of straight fibre panels ([45/-45/0/90]s,[ plus/minus 45]2s, [0/90]2s) are investigated by finite element numerical simulations. It is found that the VAT panels with sine curved and tangent curved fibres show much better buckling performance to traditional straight fibre panels, with 9.25%-30.75% and 8.18%-29.47% improvement in buckling load respectively and a more uniform stress distribution. These results demonstrate that the design of composite laminated panels with sine curved and tangent curved fibre formats has the potential for buckling performance improvements in structural efficiency, and sine curved fibres may enhance buckling property of composite laminates better than tangent curved fibres do. 16 Refs.

---