Probabilistic Finite Element Methods For the Evaluation of Wood Composites.

摘要

Composite materials are increasingly being used in aerospace, marine, and automotive structures. The application of composite materials to engineering fields has spurred a major effort to analyze structural components made from them. Even though composite materials provide unique advantages over their constituent counterparts, they also present complex and challenging problems to analysts and designers. The research of this thesis was directed to randomly distributed particulate-reinforced wood composites (RDPR WC), which have highly heterogeneous microstructures. Apart from spatial variations in reinforcement distribution and arrangement, the properties of the reinforcement particles are themselves orthotropic and highly variable. Computational limitations have generally dictated that two-scale models be explored in the study of particulate-reinforced composites.