Experimental Mechanics

, Volume 41, Issue 1, pp 1–7 | Cite as

Strain gage method for determining stress intensities of sharp-notched strips

  • T. Kondo
  • M. Kobayashi
  • H. Sekine


An efficient and simple strain gage method for determining the stress intensities of sharp-notched strips is proposed. The bisector of the notch angle is inclined to the edge so that the mixed-mode loading is created simultaneously at the notch tip. A theory of determining the stress intensities using strain gages is described on the basis of the two-dimensional theory of elasticity. Experiments on specimens with various notch shapes are carried out to verify the theoretical results. Experimental results are in good agreement with theoretical results.

Key Words

Stress intensity factor strain gage method sharp notched strip fracture mechanics 


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Copyright information

© Society for Experimental Mechanics, Inc. 2001

Authors and Affiliations

  • T. Kondo
    • 1
  • M. Kobayashi
    • 1
  • H. Sekine
    • 2
  1. 1.Department of Mechanical EngineeringNagaoka College of TechnologyNagaokaJapan
  2. 2.Department of Aeronautics and Space EngineeringTohoku UniversitySendaiJapan

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