DEVICE FOR ANALYZING THE ENDURANCE OF A PLANER STRAIN UNIT SUITABLE FOR CALCULATING FATIGUE LIFETIME BY USING FATIGUE SAMPLES COLLECTED PER EACH DIRECTION FROM A SIMULATE SPECIMEN IN WHICH THE PLANAR STRAIN IS APPLIED

摘要

PURPOSE: A device for analyzing the endurance of a planer strain unit is provided to enable the prediction of accurate fatigue lifetime of a planer strain portion and to obtain the safety of sash components.;CONSTITUTION: A device for analyzing the endurance of a planer strain unit includes a fatigue curve drawing unit (104), a finite element analysis unit (106), a fatigue curve selecting unit (108), and a fatigue lifetime calculating unit (110). The fatigue curve drawing unit draws a fatigue curve of each fatigue sample. The finite element analysis unit performs a finite element analysis in respect to an actual planer strain portion, thereby calculating right angle stress and a stress direction. The fatigue curve selecting unit selects the fatigue curve corresponding to the calculated stress direction among the fatigue curves of the fatigue samples. The fatigue lifetime calculating unit calculates the fatigue lifetime corresponding to the calculated right angle stress from the selected fatigue curve.;COPYRIGHT KIPO 2013;[Reference numerals] (100) Forming mode analyzing unit; (102) Database; (104) Fatigue curve drawing unit; (106) Finite element analysis unit; (108) Fatigue curve selecting unit; (110) Fatigue lifetime calculating unit