FINITE ELEMENTS FOR DETERMINATION OF CRACK-TIP ELASTIC STRESS INTENSITY FACTORS

In this report on finite elements for determination of crack-tip elastic stress intensity factors, a new type of finite element is introduced which embodies the inverse square root singularity present near a crack in an elastic medium. Using this element near the tip in two typical cracked configurations, stress intensity factors within five percent of accepted values were obtained with meshes having as few as 250 degrees of freedom. (Author)

• Corporate Authors:

  Army Materials and Mechanics Research Center

  Watertown, MA  United States  02172
• Authors:
  • Tracey, D M
• Publication Date: 1971-8

Media Info

• Features: References;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Cracking; Finite element method; Fracture mechanics; Stresses
• Uncontrolled Terms: Stress intensity factors
• Old TRIS Terms: Crack stresses
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00024815
• Record Type: Publication
• Source Agency: Ship Structure Committee
• Report/Paper Numbers: AMMRC TR 71-27
• Files: TRIS
• Created Date: Jan 21 1972 12:00AM