FATIGUE TESTING DEVICE AND FATIGUE TESTING METHOD

• Main Authors: TAKEUCHI KYOHEI, YAMADA HIROSHI, SHUTO HIROSHI, FUJIKAWA TAKUMI, TOJO HIROKI, KAMATA YASUYOSHI, NOGUCHI YASUTAKA, HAYAKAWA MAMORU, SATANI DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 08.03.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a fatigue testing device capable of measuring axial force fatigue characteristics by suppressing application of torsional stress to a test piece.SOLUTION: A fatigue testing device 1, which measures fatigue characteristics of a test piece S, comprises: a cylinder 11 including a piston rod 112 that moves along the axial direction thereof; a chuck 12 that is fixed to an end of the piston rod 112 and grips the test piece S; a guide shaft 211 that extends parallel to the axial direction of the piston rod 112; a bearing 212 that slides with the guide shaft 211; and a connection member 22 that is fixed to at least one of the piston rod 112 and the chuck 12, and to the bearing 212.SELECTED DRAWING: Figure 1 【課題】試験片にねじり応力が加わるのを抑制して、軸力疲労特性を測定することができる疲労試験装置を提供する。【解決手段】疲労試験装置１は、試験片Ｓの疲労特性を測定する疲労試験装置であって、軸方向に沿って移動するピストンロッド１１２を含むシリンダ１１と、ピストンロッド１１２の端部に固定され、試験片Ｓを把持するチャック１２と、ピストンロッド１１２の軸方向と平行に延びるガイド軸２１１と、ガイド軸２１１と摺動する軸受け２１２と、ピストンロッド１１２及びチャック１２の少なくとも一方、並びに軸受け２１２に固定された連結部材２２とを備える。【選択図】図１