Volume no :3, Issue no: 1, January (2011)

Journal of Materials Science and Engineering with Advanced Technology

USING DAMAGE MODELS TO PREDICT FATIGUE IN STEEL AND GLASS FIBER REINFORCED PLASTIC

Author's: R. Fragoudakis and A. Saigal
Pages: [53] - [65]
Received Date: December 17, 2010
Submitted by:

Abstract

Three cumulative damage models are examined for the case of cyclic loading of AISI 6150 steel and S2 glass fiber/epoxy composite. The Palmgren-Miner, Broutman-Sahu, and Hashin-Rotem models are compared to determine, which of the three gives a more accurate estimation of the fatigue of the materials tested. In addition, comparison of the fatigue life of the materials shows the superiority of the composite over the steel at lower mean stresses, and that of steel to the composite at higher mean stresses.

Keywords

glass fiber reinforced plastic (GFRP), cumulative damage distribution, low cycle fatigue (LCF), high cycle fatigue (HCF).