Statistical verification of strength parameters of fibrous composites
Rafał Chatys
Quarterly No. 3, 2012 pages 171-176
DOI:
keywords: composite, strength, size effects, statistical analysis
abstract The paper analyzes the results of static tests conducted on fibrous composites. The strength characteristics were obtained for samples of different measuring length and different reinforcement architecture, produced by vacuum bag moulding and contact moulding using UDO® E-type unidirectional fibreglass fabric as the reinforcement and HAVELpol.2 polyester or LH 160 epoxy as the matrix. Then, the experimental data were analyzed by applying advanced statistical apparatus to verify the assumptions about the normal and logarithmic-normal distributions of strength. The statistical analysis is essential to correctly develop a model to determine the strength characteristics of fibrous composites based on the Markov chain theory.