报告内容摘要：

This presentation covers two topics on material and structure failures, relevant to aircraft structures.
(i)    How to predict the structural failure of a metal component containing a fatigue crack? That is the “structural yielding point”, at which it begins to deviate from its elastic behavior and begins to show large-scale plastic deformation with little increase in the applied load. A simple predictive fracture mechanics is presented and applied to two steels (one ductile and one relatively brittle), and one aluminum alloy. New concepts on elastic and plastic fracture of metals, and new analytical methods are presented.
(ii)   Is there a critical design fault in current layered carbon-fiber composites, and can they be made more impact resistant or more reliable? A simple doable design and processing method is presented with latest experimental evidence.

报告人简介：

Xiaozhi Hu studied engineering mechanics at Northeastern University as a “77” university freshman, obtained his PhD from Sydney University in 1989. After PhD, he did research work at ETH-Zurich and NIST USA and other places. His research is on fracture mechanics modeling and structural integrity analysis, and understanding of failure mechanisms of engineering materials and composites, and design and processing methods for more reliable engineering materials. He was the chairman of Australian Fracture Society between 2006-2008, and has worked at University of Western Australia since 1992. He has had 10 national Australian Research Council discovery grants since 1997.
 
 
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