On The Thermal Stresses due to Welding of a Penetraion Piece for a Watertight Bulkhead Plate(II) -Thermal Stresses in a Penetration Piece-

수밀격벽(水密隔壁)을 관통(貫通)하는 관(管)의 용접시공(熔接施工)으로 인(因)한 열응력해석(熱應力解析)(II) -Penetration piece에서의 열응력(熱應力)-

As a second step of a thermal stress analysis in a watertight bulkhead plate during welding of a spool type penetration piece, is idealized as a thin circular disk with a clamped boundary. The exact solution for the transient temperature distribution and associated quasi-static thermal stresses which arise in a circular disk subjected to an instantaneous point source of heat acting in its interior has been obtained. And the solutions have been extended to the case of moving source of heat with the aid of the Duhamel's superposition integral and the results finally derived have been compared with the other results from the typical cases. The solutions can be applied to the problem such as a welding of a penetration piece on the watertight bulkhead and also applicable to the problems which occur in cutting or welding.