Abstract
A database for the mechanical properties of advanced composites was developed. The data were obtained from the research and development project of composite materials for future industries supported by the Ministry of International Trade and Industry (MITI). This paper deals with the statistical analysis of the tensile and flexural strengths of fiber reinforced plastic (FRP) based on this database.
The present analysis consists of the following three parts: (1) the calculation of basic statistical properties, the calculation of parameters of Weibull distribution, and the testing of goodness-of-fit for the primary populations where the sample size is larger than 10, (2) the clarification of the effects of various factors such as hybridization, discontinuousness of fibers, temperature, thermal aging, orientation, and matrix properties on the mean strength and the variation, and (3) the clarification of statistical properties of the parameters of the strength distribution.
