A little more than life assessment manner and a little more than life assessment system

摘要

PURPOSE:To achieve a higher reliability of a high temperature member by calculating a residual life based on an addition of a fatigue life consumption, a creep life consumption and a life consumption caused by embrittlement of the high temperature member. CONSTITUTION:A life consumption and a creep life consumption of a high temperature member and a degree of embrittlement are calculated by a life consumption calculating means composed of a CPU 61 and a RAM 62 from respective measured values. In this case, as the respective values are obtained at a fixed location of the high temperature member, there is little environmental change between forms of damages, which enables the evaluation of the forms of damages almost equivalently. Thus, deterioration is determined as caused by a fatigue damage, a creep damage and embrittlement to obtain a residual life of the high temperature member subject to a repeated load allowed for all life consumption attributed to these forms of damages thereby enabling the recognizing of a comprehensive residual life of the high temperature member.