Thermoelastic Effect Caused by Longitudinal Collision of Two Bars

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概要

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• According to the one-dimensional elastic theory, it is well known that step waves of stress and strain propagate when two semi-infinite bars collide with each other. However, to describe precisely, the adiabatic deformation causes a thermal deviation along the bars. Consequently, the heat flow thus produced has an effect on the stress and strain waves. In this paper, the problem is formulated as a coupled transient phenomenon using the one-dimensional equation of motion, the thermal stress-strain relations and the equation of heat flow. The strain and temperature distributions are obtained. It is found that the wave front propagates with velocity c_0=√<E_T/ρ> (E_T: isothermal Young's modulus). the strain is observed even in the region ahead of the wave front, and the magnitude of the strain behind the wave front is nearly constant but a little smaller compared with that of the ordinary elastic theory.

• 一般社団法人日本機械学会の論文

著者

• TANAKA Kichinosuke

  Faculty of Engineering, Kyoto University

• Kurokawa Tomoaki

  Research Fellow Central Research Laboratories Sumitomo Metal Industries.

• Tanaka Kichinosuke

  Faculty Of Engineering. Kyoto University

• Tanaka Kichinosuke

  Faculty Of Engiineering Kyoto University

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