本公告包含一项研究的结果，该研究旨在确定带圆形喷嘴的薄壁圆柱形和球形压力容器中的应力分布。两个容器的直径与厚度之比约为240，喷嘴直径等于容器直径的一半。两个容器均采用12号热轧钢板制造。电阻应变计用于应力测定。确定了每个容器内的应力分布，包括内部压力、喷嘴上的轴向推力和外部力矩，以及荷载形式。对于球壳模型，所有形式的载荷下的实测应力分布与基于现有理论的预测一致。然而，在圆柱形模型的情况下，高应力区域位于圆柱体和喷嘴之间的圆角中，距离容器纵轴约60至7英寸，用于内部压力和纵向力矩形式的荷载。 Eringen对圆柱与圆柱相交问题的解析解的结果表明，内部压力存在这种分布的可能性。对于纵向力矩的情况，距离纵轴约60”的最大应力的存在完全出乎意料。

This Bulletin contains the results of a study which was conducted to determine stress distributions in thin-walled cylindrical and spherical pressure vessels with circular nozzles. Both vessels had a diameter-to-thickness ratio of approximately 240 and a nozzle diameter equal to one-half the vessel diameter. Both vessels were fabricated using 12 gage hot-rolled sheet steel. Electrical resistance strain gages were used for the stress determinations. Stress distributions were determined in each of the vessels for internal pressure, axial thrust on the nozzle, and external moment, forms of loading. For the spherical shell model the measured stress distributions were consistent for all forms of loading with predictions based on available theory. In the case of the cylindrical model, however, a region of high stress was located in the fillet between the cylinder and the nozzle approximately 60 to 7 inches from the longitudinal axis of the vessel for both internal pressure and longitudinal moment forms of loading. Results from an analytical solution by Eringen for the cylinder-to-cylinder intersection problem had indicated the possibility of such a distribution for internal pressure. For the case of longitudinal moment, the presence of the maximum stress approximately 60" from the longitudinal axis was completely unexpected.