Paper Title:
Transverse Elastic Deformation Behavior of Aligned Fiber Bundles under Bulk Compressive Pressure and Longitudinal Stress
  Abstract

Advanced composite materials generally use fiber in very high volume fraction, compression of textile/perform is adopted in manufacture processes. The major role of the compaction process is to obtain high fiber volume fraction in final parts. During the compaction process, transverse compaction of textile/perform is the main deformation form, where the compaction behavior of a fiber bundle is the most basis issue. In this paper, a micromechanical model of aligned fiber bundle with high fiber volume fraction was developed to investigate elastic deformation behavior under bulk compressive pressure and longitudinal stress. Bending characteristics of a waved fiber was established to describe the transverse bulk compression and the longitudinal deformations of a bundle. A wave amplitude was introduced to describe initial distance between fibers, which affects the initial fiber volume fraction and the transverse deformation feature. An improved representative fiber cell was present to get the deflection of a bending fiber under transverse and axial force. Randomly distributed directions of waved fibers lead to a more reasonable representative fiber cell, which influences initial fiber volume fraction and leads to logical deformation explanation and symmetric constitutive relation for aligned fiber bundle with high volume fraction. Analytical formulae to describe the constitutive relationship of fiber bundle under transverse and longitudinal stress were present. Numerical results show that the transverse bulk compressive stress and its deformation are related to wave amplitude and available fiber volume fraction. The comparison to present literatures was given to show the improvement of the model.

  Info
Periodical
Advanced Materials Research (Volumes 97-101)
Edited by
Zhengyi Jiang and Chunliang Zhang
Pages
1689-1692
DOI
10.4028/www.scientific.net/AMR.97-101.1689
Citation
J. Z. Xing, L. Chen, J. C. Li, "Transverse Elastic Deformation Behavior of Aligned Fiber Bundles under Bulk Compressive Pressure and Longitudinal Stress", Advanced Materials Research, Vols. 97-101, pp. 1689-1692, 2010
Online since
March 2010
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: Shi Lin Yan, Hang Lu, Hua Tan, Zhong Qi Qiu
Abstract:In this paper, the permeability of fiber fabric used in liquid composite molding (LCM) is predicted by the method of numerical simulation....
1776
Authors: Nicola Maria Pugno, Tamer Abdalrahman
Abstract:In a recent letter, Xiao et al. [3] interpreted experimental results on the failure of nanotube bundles using Weibull Statistics. The...
159
Authors: Wen Huang, Zhong Wei Huang
Abstract:A statistical constitutive model, which takes account the effect of strain rate, was presented to describe the stress-strain relationship of...
1213
Authors: Lei Li, Li Chen, Jin Chao Li
Chapter 5: Structure, Properties and Processes of Textile Materials
Abstract:The three-dimensional structure of high-performance fiber bundles are of paramount importance for their study in lateral compression...
1024
Authors: Jin Chao Li, Li Chen, L. Li
Chapter 5: Structure, Properties and Processes of Textile Materials
Abstract:The precise characterization of the microstructure of bundle is essential for an accurate determination of their properties and behavior....
1015