孔边有加强环的轴对称球壳圆孔的应力集中
CONCENTRATION OF STRESSES NEAR CIRCULAR HOLE OF AN AXISYMMETRICAL SPHERICAL SHELL WITH STIFFENING RING
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摘要: 本文讨论孔边有加强环的球壳圆孔应力集中的轴对称问题。导出了径向弯矩、环向轴力、径向轴力的内力集中系数公式。文中对各种几何参数(孔洞尺寸,环梁截面尺寸,环梁与壳面的偏心距)下的内力分布作了详尽的讨论。就泊松比ν=0,壳面作用有法向面荷载q和孔边作用有线荷载p的情况,分别作了径向弯矩,环向轴力,径向轴力的内力集中系数表格。对于加强环内的弯矩,也给出了计算公式和表格。这些表格可供设计单位直接应用。①②③Abstract: in this paper,concentration of stresses near circular hole of an axisymmetrical spherical shell with stiffening ring are discussed. The calculating formulas for three stress resultants (radial bending moment,radial and hoop normal forces)under normal distributed load and ring load are derived. The numerical tables of them for poison's ratio ν=0 and different geometrical parameters are given for directly use in engineering design.