대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제15권2호
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- Pages.387-395
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- 1991
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- 1225-5963(pISSN)
DOI QR Code
미분구적법을 이용한 직교이방성 원판의 대변형 해석
Large deflection analysis of orthotropic thin circular plates using differential quadrature
초록
Large deflection behavior of cylindrically orthotropic thin circular plates is investigated by the numerical technique of differential quadrature. Governing equations are derived in terms of transverse deflection and stress function and a Newton-Raphson technique is used to solve the nonlinear systems of equations. For small values of degree of differential quadrature (N.leq.13), as the degree of differential quadrature increases, the center deflection converges. However, as N increases further, the center deflection diverges by ill-conditioning in the weighting coefficients. As the orthotropic parameter increases, the center deflection decreases and behaves linear for the loads. At center, the stress is affected mainly by orthotropic parameter, while the stress is affected mainly by boundary condition at edge.
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