Accession Number:

ADA066458

Title:

Fatigue Failure Criteria for Combined Cyclic Stress.

Descriptive Note:

Technical rept.,

Corporate Author:

PENNSYLVANIA UNIV PHILADELPHIA DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

Report Date:

1979-03-01

Pagination or Media Count:

22.0

Abstract:

Failure criteria for combined cyclic stress are represented in terms of parametric families of failure surfaces in stress space. Quadratic approximations and symmetry arguments are employed in systematic fashion to construct isotropic failure criteria for general three dimensional states of cyclic stress. Particular attention has been directed to the important cases of normal stress-shear stress bending-torsion and biaxial stress cyclings. It is shown that failure criteria for cycling with and without mean stress reversed cycling have different forms, the latter admitting simpler representations. Author

Subject Categories:

  • Theoretical Mathematics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE