STUDY ON FAST FRACTURE AND CRACK ARREST

Since the experimentally proven inadequacy of static approximation to fast fracture and crack arrest was brought to light, many structural engineers and researchers are interested in dynamic aspects of fast fracture and crack arrest. This paper gives firstly some numerical results obtained with the use of finite difference method to show its usefulness as a tool to analyze dynamic fracture mechanics problems. The results of numerical computation compare well with the corresponding analytically solved solutions in terms of stress, strain and energy flow. The experimental results of brittle crack propagation and arrest on structural steels are analyzed using finite difference method. The material toughness against fast fracture is defined as a function of temperature and crack velocity. Using the thus defined fracture toughness, crack propagating behaviours are predicted through numerical simulations for some limited cases. This implies a possibility to develop simple methods for crack arrester design.

  • Corporate Authors:

    Society of Naval Architects of Japan

    15-16, Toranomon, 1-chome, Minato-ku
    Tokyo,   Japan 
  • Authors:
    • Kanazama, T
    • Machida, S
    • TERAMOTO, T
    • Yoshinari, H
  • Publication Date: 1979

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Filing Info

  • Accession Number: 00311570
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 26 1980 12:00AM