Abstract
The first formulation of an axisymmetric transient elastod) namic analysis by time domain boundary element method is presented and is implemented in a general purpose system, GPBEST. For the evaluation of boundary convolution integrals, both constant and linear variations in the time domain of displacement and traction fields are given. Transformation of 3-D dynamic kernels into cylindrical coordinates and the integration of kernels along circumferential direction leads directly to an axisymmetric analysis with only 2-D boundary discretization. The numerical integration of these kernels has been done carefully by preserving the causality so that very good accuracy and reliability of the present analysis have been achieved, as can be seen in the examples presented.
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