Life prediction for fatigue of T800/5245 carbob-fibre composites: II. Variable-amplitude loading |
| |
Authors: | T Adam N Gathercole H Reiter B Harris |
| |
Affiliation: | School of Materials Science, University of Bath, Bath BA2 7AY, UK |
| |
Abstract: | This is the second of two papers describing the fatigue response of a (±45,02)2]s laminate of the T800/5245 composite system, a modern aerospace material consisting of high-failure-strain, intermediate-modulus carbon fibres in a toughened bismaleimide resin system. In the first paper, the fatigue response in repeated tension, repeated compression, and mixed tension-compression was determined at constant stress levels over a wide range of R values. The results of those constant-amplitude experiments were then used to define a programme of four- and two-block variable-loading experiments in an attempt to derive predictive methods for such loading conditions. Formulae have been developed to predict life under non-linear cumulative damage conditions and empirical data derived to validate the procedures. |
| |
Keywords: | carbon-fibre composites block loading life prediction |
本文献已被 ScienceDirect 等数据库收录! |
|