Effect of water absorption on the Weibull distribution of fatigue test in jute-reinforced polyester composite materials. (24th May 2019)

• Record Type: Journal Article
• Authors: Djeghader, Djamel; Redjel, Bachir
• Is Part Of: Advanced composites letters. Volume 28(2019)
• Publication Date: 2019-05-24
• Subjects: Jute -- polyester -- fatigue life -- Weibull distribution -- water; Composite materials -- Periodicals; 620.118
• DOI: 10.1177/0963693519853833
• Languages: English
• ISSNs: 0963-6935

Abstract

Composite materials have been manufactured using bidirectional jute yarn in a polyester matrix. The manufactured composite has been subjected to water aging for various times of immersion (90, 180, and 270 days). A significant decrease of fatigue strength has been observed during water aging. The number of cycles to failure of the aged and nonaged specimens were correlated using the two-parameter Weibull distribution function to determine the probability of failure and plot the S–N curves at different reliability levels. The results have shown that the two-parameter Weibull distribution describes the fatigue life probability distributions of jute-reinforced polyester composite material with highly significant statistical correlation coefficients.