【摘要】 为了对厚板弯曲问题近似解法提供更多的理论基础,本文在厚板弯曲问题最小势能/余能原理的一种新提法的基础上,用线性Lagrange乘子法,解除包括广义应力-广义应变关系在内的全部变分约束条件,建立了厚板弯曲问题新的三类变量广义势能/余能原理。更多还原

【Abstract】 Based on a new proposition of the principle of minimum potential / complementary energy for the thick plate bending problem , a new three field generalized potential / complementary energy principle for such problems is established , applying the lagrange multiplier method , to release all the variational constraint conditions , including the relation between generalized stress and generalized strain, so as to provide more theoretical basis to approximate solutions to the problems .更多还原