Paper Title:
Study on Tear Propagation of a Fabric Laminate in Biaxial Stress
  Abstract

Tear propagation is the typical fracture mode of fabric laminates, which is affected by stress and damage size. With the use of high strength fabrics, high performance laminates emerge continually. In this paper, tear propagation of a high strength fabric laminate coating polyurethane used in high altitude lighter-than-air vehicle (LTA) is studied. Cross-shaped specimens, central size 5cm×5cm, are scissored out to test tear propagation strength in biaxial stress by a tailor-made testing machine. The damnification is a cut slit in weft direction, warp fibers cut off. The cut slit is in the middle of specimens, including 0cm (scatheless specimens), 1cm, 2cm and 3cm in length. Tear propagation is observed and the strength is noted simultaneously to gain the mechanical properties of the fabric laminate. The tensile strength of the laminate is 424N/cm, and it descends to 263N/cm in cut slit length of 1cm. Subsequently, two methods based on stress field and linear elasticity fracture mechanics are introduced to analyze the tear strength, which is validated well by test results, and the coefficients of empirical formulae are obtained. It is useful to analyze the limit length and the limit stress for the fabric laminate with initial damage.

  Info
Periodical
Advanced Materials Research (Volumes 217-218)
Edited by
Zhou Mark
Pages
147-151
DOI
10.4028/www.scientific.net/AMR.217-218.147
Citation
D. X. Liu, Z. Jia, J. Hu, P. F. Guo, Y. P. Ma, "Study on Tear Propagation of a Fabric Laminate in Biaxial Stress", Advanced Materials Research, Vols. 217-218, pp. 147-151, 2011
Online since
March 2011
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: Ping Wang, Yan Zhang
Abstract:Flexible composites with high performance are widely used in geotextiles and some other fields. In this research work, the author studied the...
448
Authors: Wei Geng, Ye Xiong Qi, Jia Lu Li
Chapter 1: Material Science
Abstract:Five-layer biaxial weft knitted (FBWK) fabric is one kind of multilayered biaxial weft knitted (MBWK) fabric. FBWK fabric is made of carbon...
359
Authors: Jian Wen Chen, Hong Qing Hou, Wu Jun Chen
Chapter 1: Materials Design
Abstract:This article presents the mechanical properties of PVC coated fabrics under biaxial cyclic tensile loads. Tests of PVC at five load ratios in...
36
Authors: Yu Lei, Zheng Hua Meng, Shang Yu Huang, Jian Hua Hu, Meng Cheng Zhou, Guo Xu Dong
Chapter 2: Mechanical Properties of Engineering Materials
Abstract:Several different DP590 high-strength steel sheet cruciform specimens were tested by biaxial tensile experiment system. According to the...
138