The effect of shear tractions on frictionally-excited thermoelastic instability

نویسندگان

  • Kwangjin Lee
  • J. R. Barber
چکیده

A parametric study is conducted to determine the effect of normal displacements due to shear tractions on the critical speed for frictionally-excited thermoelastic instability. The results show that shear effects can be very significant when the materials have comparable thermal properties and their neglect can lead to a non-conservative overestimate of critical speed. ft is also found that the common approximation of one material as a non~nductor typically underestimates the critical speed by an order of magnitude if the ratio of the two material conductivities is greater than 0.005,

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تاریخ انتشار 1992