Strain control-based curved-straightened fatigue testing device and testing method

The invention discloses a strain control-based curved-straightened fatigue testing device and testing method. The testing device comprises a clamping device, a curved-straightened mold and connectingrods, wherein the clamping device comprises a clamping sleeve and positioning round rods, and a large...

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Bibliographische Detailangaben
Hauptverfasser: CUI LEI, JIANG FANG, RONG MING, XIAN NING, CAO XIAOYAN, SHI DAIYAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a strain control-based curved-straightened fatigue testing device and testing method. The testing device comprises a clamping device, a curved-straightened mold and connectingrods, wherein the clamping device comprises a clamping sleeve and positioning round rods, and a large hole where a test sample passes through and four positioning small holes for placing the positioning round rods in the vertical direction are formed in the clamping sleeve; the curved-straight mold comprises a curved mold and a straightened mold arranged on a fastening connecting plate; and the connecting rod comprises the upper connecting rod arranged at the upper end of the straightened mold and the lower connecting rod arranged in the bottom of the clamping sleeve. The device can preciselysimulate a curved-straightened fatigue test in different anelastic strains. In addition, the device is compact in structure and relatively small in size, can be placed in a high pressure kettle directly, and is connected to a