To provide a calculation device, a calculation method and a program capable of calculating a stress intensity factor corresponding to a plurality of load conditions about a detective part of a structure.SOLUTION: A calculation device 10 calculates mixed mode average composite K values Kθm and mixed mode variation composite K values Kθa over a whole peripheral direction with a tip of a defective part as a center after synthesizing stress intensity factors of modes I, II calculated every multiple load conditions. Then, the calculation device 10 extracts mixed mode average composite K value Kθm and mixed mode variation composite K value Kθa when a safety factor becomes minimum as the maximum average composite K value Kθmax-m and the maximum variation composite K value Kθmax-a from among the mixed mode average composite K values Kθm and the mixed mode variation composite K values Kθa calculated over the whole peripheral direction.SELECTED DRAWING: Figure 1

    【課題】構造物の欠陥部について複数の荷重条件に対応した応力拡大係数を算出することができる、算出装置、算出方法およびプログラムを提供する。【解決手段】算出装置10は、複数の荷重条件ごとに算出されたモードI,IIの応力拡大係数を合成した後、欠陥部の先端を中心として全周方向にわたって混合モード平均複合K値Kθmおよび混合モード変動複合K値Kθaを算出する。そして、算出装置10は、全周方向にわたって算出した混合モード平均複合K値Kθmおよび混合モード変動複合K値Kθaのうちから、安全率が最小となるときの混合モード平均複合K値Kθmおよび混合モード変動複合K値Kθaを、最大平均複合K値Kθmax−mおよび最大変動複合K値Kθmax−aとして抽出する。【選択図】 図1


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    Title :

    CALCULATION DEVICE, CALCULATION METHOD AND PROGRAM


    Additional title:

    算出装置、算出方法およびプログラム


    Contributors:

    Publication date :

    2020-12-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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