OS1403 自由表面に平行な二個の軸対称き裂を有する傾斜機能圧電厚板の電気熱弾性応答(OS14-1 圧電材料・セラミックス・傾斜機能材料の弾性数理解析,OS-14 弾性数理解析の発展と新展開1)

Abstract

Thermoelectroelastic response of Two parallel axisymmetric cracks in a plate of a functionally graded piezoelectric material (FGPM) is studied under thermal shock loading conditions. It is assumed that the thermoelectroelastic properties of the strip vary continuously along the thickness of the strip, and that the crack faces are supposed to be insulated thermally and electrically. By using both the Laplace and Hankel transforms, the thermal and electromechanical problems are reduced to two systems of singular integral equations. The singular integral equations are solved numerically, and a numerical method is then employed to obtain the time dependent solutions by way of a Laplace inversion technique. The intensity factors versus time for various geometric parameters are calculated.