THE FATIGUE LIFE OF VEHICLE FRAME STRUCTURES

The stresses arising in a vehicle structural part during the operation period could be divided into three essential components. The extreme values of these components and their distribution function may be derived. Using appropriate crack propagation functions one can define the momentary service strength of the structure and the damage-function. On the basis of the new fracture model presented, the life distribution can be interpreted unambiguously. By using certain assumptions, the deverage value and the scatter of the life can be derived. The new fracture model allows the several fracture types, like static, pure dynamic, pure fatigue, and general fractures to be treated on the same basis. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • MATOLCSY, M
• Publication Date: 1975-10

Media Info

• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Cracking; Fracture mechanics; Frames; Mathematical models; Mechanical fatigue; Strength of materials; Stresses; Structures; Vehicles
• Uncontrolled Terms: Crack propagation; Fatigue life; Fracture
• Subject Areas: Bridges and other structures; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00131780
• Record Type: Publication
• Report/Paper Numbers: SAE #750968
• Files: TRIS
• Created Date: May 14 1976 12:00AM