Experimental Mechanics

, Volume 21, Issue 10, pp 371–378 | Cite as

An experimental weight function for stress-intensity-factor calibrations

The experimental weight-function method for stress-intensity-factor calibrations is demonstrated. This procedure allows measurements for one cracked-specimen loading to be converted intoK1 results for a different loading applied to the same geometry
  • D. Bar-Tikva
  • A. F. GrandtJr.
  • A. N. Palazotto
Article

Abstract

This paper describes a set of experiments conducted to demonstrate application of weight-function methods to experimental stress-intensity-factor calibrations. The weight-function method allows stress-intensity-factor and crack-surface-displacement information obtained for one loading to be generalized in a form which allows direct computation of stress-intensity factors for other load configurations applied to the crack geometry under consideration. The specific results described here demonstrate that experiments with edgecracked strips loaded in four-point bending also provide stress-intensity factors for remote lension and three-point bend-load applications.

Keywords

Mechanical Engineer Fluid Dynamics Weight Function Direct Computation Specific Result 

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Copyright information

© Society for Experimental Mechanics, Inc. 1981

Authors and Affiliations

  • D. Bar-Tikva
    • 1
  • A. F. GrandtJr.
    • 1
  • A. N. Palazotto
    • 2
  1. 1.Department of Aeronautics and AstronauticsAir Force Institute of Technology, Wright-Patterson Air Force Base
  2. 2.School of Aeronautics and AstronauticsPurdue UniversityWest Lafayette

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