DURABILITY DESIGN OF WELDED STRUCTURAL SYSTEMS WITH DEVELOPING DAMAGES

摘要

Main features of durability design of welded structural systems containing initial technological defects are considered. These features are : structural analysis of welded structure, simulation of limit states and assessment of reliability of weldments, optimization and ensuring of given reliability. Structural scheme of excavator arm beam is demonstrated. The main results of computer simulation are : fatigue curves , reliability functions , complete stochastic lifetime diagrams and stochastic durability surfaces.