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WANG Gang-feng, KANG Yi-lan. A SIMPLIFIED ANALYSIS OF FRACTURE AND BUCKLING-DRIVEN DELAMINATION OF FUNCTIONALLY GRADED MATERIALS[J]. Engineering Mechanics, 2002, 19(1): 103-108.
Citation: WANG Gang-feng, KANG Yi-lan. A SIMPLIFIED ANALYSIS OF FRACTURE AND BUCKLING-DRIVEN DELAMINATION OF FUNCTIONALLY GRADED MATERIALS[J]. Engineering Mechanics, 2002, 19(1): 103-108.
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A SIMPLIFIED ANALYSIS OF FRACTURE AND BUCKLING-DRIVEN DELAMINATION OF FUNCTIONALLY GRADED MATERIALS

  • Department of Engineering Mechanics, Tsinghua University, Beingjing, 100084, China;2. Department of Engineering Mechanics, Tianjin University, Tianjin, 300072, China

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  • Received Date: June 26, 2000
  • Revised Date: September 25, 2000
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  • As a new kind of advanced composites, functionally graded material combines various properties of its constituents. At the same time, the continuous variation of properties yields some excellent mechanical advantages. In this paper, based on a beam model, the thermal stresses and the fracture parameters of crack parallel to the interface between a FGM/substrate material and a mutil-layer material are analyzed. The buckling-driven delamination of functionally graded film is investigated too. It is shown that the FGM can effectively alleviate the stress concentration in the interface and its effects on micro defects, and improve materials strength and toughness inccodinately.
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