Impact of Metallic Foam’s Microstructure to its Mechanical Property

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Abstract:

Explored the influence of pore structure of foam metal material on mechanical behavior of fracture. Discuss fracture toughness of several different micro geometric structure of foam metal material with finite element method. The author's calculations showed, microstructure and loading mode has an important effect on the fracture toughness of the foam metal material. due to ignoring the effects of cell structure on the mechanical properties of materials, the classic fracture toughness criterion -crack tip opening displacement (COD) is incomplete, it would be more efficient to take opening displacement change rate of the crack-tip as the parameter to characteristic the metallic foam material fracture toughness.

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Periodical:

Advanced Materials Research (Volumes 634-638)

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2808-2812

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Online since:

January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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