Paper Title:
A Finite Element Model and Experimental Verification for the Mechanical Properties of 2.5-D Braided Composites
  Abstract

As for 2.5-D layer-to-layer angle interlock braided composites, the cross section of the warp tow was represented in double-convex lens form, and the center line of the warp tow was along the sinusoid. The arranging characteristic of weft tow fibers along the cross section outline of the longitude fibers was studied in detail. A novel finite element model for 2.5-D braided composites was established to predict elastic modulus. The finite element software ANSYS was adopted to study the mechanical properties of the model and presented its stress nephogram, and the influence of the braided structure parameters on the elastic modulus of this material was analyzed in detail. To validate this model, qualified experimental samples were made by VARTM technique, and then tensile tests were performed to determine the mechanical properties. The results show that the conclusions of finite element method (FEM) fit well with the experimental values, and this model can be used to predict effectively the macro modulus of 2.5-D braided composites.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
1591-1596
DOI
10.4028/www.scientific.net/MSF.546-549.1591
Citation
W. F. Dong, Y. Li, J. Xiao, "A Finite Element Model and Experimental Verification for the Mechanical Properties of 2.5-D Braided Composites", Materials Science Forum, Vols. 546-549, pp. 1591-1596, 2007
Online since
May 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xi Tao Zheng, Qin Sun, Ying Nan Guo, Ya Nan Chai
Abstract:Load response and failure modes of three-dimensional (3-d) four-directional braided composite lugs were studied analytically and...
1948
Authors: Fan Wei Zhang, Song Bang Zhou, Yue Zhang, Da Hai Zhang, Zhong Ping Li
Abstract:Improved genetic algorithm, combined with artificial neural network, is present for the optimal design of 2.5D braided composite. Dispersal...
1645
Authors: Bao Lai Wang, Zhen Qing Wang, Guo Dong Fang, Jun Liang, Li Min Zhou
Materials Engineering
Abstract:By the macroscopic tensile tests of the 3D four-directional braided composites, the failure pattern and fracture morphology of specimens with...
2183
Authors: Ying Guo, Lin Zhi Wu, Yin Huan Yang, Zhen Gong Zhou, Tao Zeng
Abstract:To a laminate model of 3D four-directional braided composites with periodic transverse cracks, a new normal stress function in weave...
2590
Authors: De Ke Zhang, Ying Bin Cao, Rong Jun Liu, Ya Nan Jiao
Chapter 2: Surface Engineering/Coatings
Abstract:Using polycarbosilane(PCS) as precursor materials, 2.5D、3D3d、3D4d、3D5d braided structure Cf/SiC composites were prepared by Precursor...
423