TO ACCOMPLISH INTEGRITY CALCULATION OF STRUCTURES AND MATERIALS WITH CALCULATION PROGRAM IN WHOLE EVOLVING PROCESS ON FATIGUE-DAMAGE-FRACTURE

摘要

The paper puts up systematically to analyze for their intersectional relations in whole evolving process from micro-crack initiation to macro-crack forming, growth till fracture for materials behaviors on fatigue-damage-fracture, to accomplish so as to connect each other, to design and program its calculation procedures in whole process, which include the strength calculations of engineering materials at the first and second stage, the damage evolving rate, crack growth rate and life at each stage etc. And it also programs lots of the databases on the material constants, equations, curves and figures of describing material behaviors. On the other hand, as the typical structures with a crankshaft and cylinder block to calculate its strength, damage evolving rate, crack growth rate and relative life at each stage under multilevel complex loading. Thereby establish a base for integrity calculation of structure and also provide some calculation examples for engineering application.