Dynamic Stress Concentration in a Strip Plate with Fillet

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概要

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• A method of measuring the maximum dynamic stress concentration factor α_<Dmax> in a fillet has not yet established. The reflection and transmission of stress wave during the propagation through a fillet result in complex stress states. We propose a new method for analyzing the maximum dynamic stress concentration factor α_<Dmax> in a fillet utilizing the stress concentration factor α_S and the reflection coefficient A obtained by a strain gauge on the incident strip plate. In this experiment, a square wave(a stress wave with a plateau of constant stress for long duration)is used. A strain gauge measures the reflection coefficient A. The factor α_<Dmax> in the fillet is analyzed using a dynamic photoelastic method. It is confirmed that α_<Dmax> is approximated by the following equation:α_<exDmax>=(1+A)α_S. As a result, the maximum dynamic stress concentration factor is obtained experimentally using the static stress concentration factor and the reflection coefficient.

• 一般社団法人日本機械学会の論文
• 1998-07-15

著者

• Nakayama N

  Nippon Roche Research Center

• Nakayama N

  Graduate School Chiba Institute Of Technology

• NAKAYAMA Noboru

  Graduate School, Chiba Institute of Technology

• OHASHI Masahiko

  Graduate School, Chiba Institute of Technology

• TAKEISHI Hiroyuku

  Chiba Institute of Technology

• Ohashi Masahiko

  Graduate School Chiba Institute Of Technology

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• Dynamic Stress Concentration in a Strip Plate with Fillet

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