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Size-Dependent Elastic Modulus And Fracture Toughness Of The Nanofilm With Surface Effects

Author

Listed:
  • JIAN-GANG GUO

    (Department of Mechanics, Tianjin University, Tianjin 300072, China)

  • LI-JUN ZHOU

    (Department of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China)

  • YA-PU ZHAO

    (State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China)

Abstract

The effective elastic modulus and fracture toughness of the nanofilm were derived with the surface relaxation and the surface energy taken into consideration by means of the interatomic potential of an ideal crystal. The size effects of the effective elastic modulus and fracture toughness were discussed when the thickness of the nanofilm was reduced. And the dependence of the size effects on the surface relaxation and surface energy was also analyzed.

Suggested Citation

  • Jian-Gang Guo & Li-Jun Zhou & Ya-Pu Zhao, 2008. "Size-Dependent Elastic Modulus And Fracture Toughness Of The Nanofilm With Surface Effects," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 15(05), pages 599-603.
    • Handle: RePEc:wsi:srlxxx:v:15:y:2008:i:05:n:s0218625x08011901
    DOI: 10.1142/S0218625X08011901
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