One of the difficulties in applying the linear fracture mechanics to fatigue strength and fracture strength problems of complicated actual structures lies with the calculation method of the stress intensity factor. To overcome this disadvantage, a practical crack simulation computer program for plate structures has been developed by combining the usual finite element method program with a computer program for determining stress intensity factors for two-dimensional crack previously developed, based on the superposition method. Subsequently, this computer program has been revised to make it possible to predict the crack path on the maximum tangential stress theory. As an example of application to the practical problems, a damage analysis at the connection between the cross tie and side longitudinals for ship structures is carried out by the newly developed computer program. It has been shown that this program is very useful for the damage analysis so that damage cracks can be quantitatively evaluated and traced in their process of propagation to the critical failure.

  • Availability:
  • Corporate Authors:

    Ishikawajima-Harima Heavy Industries Co., Ltd.

    2-16, Toyosu 3 Chome, Koto-Ku
    Tokyo 135,   Japan 
  • Authors:
    • Ushirokawa, O
  • Publication Date: 1980-7

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00322596
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 29 1980 12:00AM