In this paper, stress intensity factors for a two-dimensional interfacial crack under polynomial distribution of stress are considered on the idea of the body force method. In this analysis, unknown body force densities are approximated by the products of the fundamental densities and power series; here the fundamental densities are chosen to express singular stress fields due to an interface crack exactly. The stress intensity factors of a 2D interfacial crack under polynomial distribution of stress are expressed as formulars for the readeru27s convenience with varying the polynomial exponent n.
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