Based on the couple stress theory,the axisymmetric contact problem between a rigid insulating spherical punch and a transversely isotropic piezoelectric half-space was studied.With the Hankel integral trans-form and the integral least squares approach,the analytical solutions of the contact pressure were obtained.The effects of the characteristic material length on the contact pressure distribution,the contact radius and the in-dentation depth were discussed.The results indicate that,the contact pressure obtained based on the couple-stress theory is significantly greater than the classical results.
关键词
轴对称接触/压电材料/尺度效应/偶应力理论
Key words
axisymmetric contact/piezoelectric material/size effect/couple stress theory
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