当薄壳为柱形且作柱状弯曲时，精确地求得了壳的挠度与长度同级的大变形基本公式。
The fundamental formula of large deformation, when the deflection is of the same order as the length of the shell, is derived exactly for cylindrical shell under cylindrical deformation.
在不规则样条的负荷-挠度取拐点后直线段切线与横坐标的交点作零点修正后所测得的弯曲弹性模量比较接近真实值。
Drawing a tangent after inflection and intersected the abscissa the slope of the tangent was taken as the flexile modulus.
并就弹性阶段，得到了试验梁跨中作用集中荷载时，弯曲挠度与剪切挠度之间的相对增长关系。
Furthermore, at the elastic stage, relationship between the bending deformation and shear deformation of test model under the inter-concentrated load was showed.
应用推荐