Problems of welding in shipbuilding - an analytic-numerical assessment of the thermal cycle in haz with three dimensional heat source models in agreement with modelling rules: Part Ⅰ Theoretical basis of modelling and an analytical assessment of heat sources models

摘要

At the beginning of this paper a short characteristic of the methodology of classic Rosenthal-Rykalin solution of temperature distribution during welding is provided. In the further part, the requirements concerning process modelling were presented,particularly with thermal processes taken into consideration.Finally, the Cylindricahlnvolution-Normal and Double-Ellipsoidal heat source modelsrnare presented.