【摘要】 本文在薄板弯曲最小余能原理的一种新提法的基础上,用 Lagrange 乘子法,解除包括广义应力—应变关系在内的全部约束条件,建立了一个新的三类变量的薄板弯曲问题广义余能原理,并进行了证明。更多还原

【Abstract】 Based on a new proposition of the principle of minimum complement- ary energy about plate bending,a new 3—field generalized complemontary energy principle about plate bending is established in this paper,by applying Lagrange multiplier method to dismiss all constraint conditions, including generalized stress—strain relation.更多还原