SHEAR DEFORMATION CHARACTERISTIC EVALUATION METHOD, EVALUATION DEVICE AND TEST PIECE FOR SHEAR DEFORMATION CHARACTERISTIC EVALUATION

• Main Authors: TANAKA KOJI, KURODA AKIRA, OGAWA MISAO
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide shear deformation characteristic evaluation method and evaluation device for obtaining shear deformation evaluation characteristics having high accuracy, and a test piece for shear deformation characteristic evaluation.SOLUTION: A shear deformation characteristic evaluation method includes: forming a plane part 101, and a first constraint surface 102 and a second constraint surface 103 which are connected to each other through the plane part 101 and are inclined to the plane part 101, on a test piece 100; relatively parallel moving a first range astride the plane part 101, the first constraint surface 102 and the second constraint surface 103 and a second range astride the plane part 101, the first constraint surface 102 and the second constraint surface 103 and adjacent to the first range in a displacement direction inclined to the plane part 101, and thereby forming a wall part 106 between the first range and the second range; fluidizing a material from the second range toward the wall part 106 during parallel movement in the displacement direction in the first range and the second range and thereby shear deforming the wall part 106; and evaluating shear deformation characteristics of a shear deformation part 107 of the wall part 106.SELECTED DRAWING: Figure 4 【課題】精度の高いせん断変形評価特性が得られるせん断変形特性評価方法、評価装置及びせん断変形特性評価用試験片を提供する。【解決手段】試験片１００に、平面部１０１と、平面部１０１を介して接続され、平面部１０１に対して傾斜する第一拘束面１０２及び第二拘束面１０３とを形成し、平面部１０１、第一拘束面１０２及び第二拘束面１０３に跨る第一範囲と、平面部１０１、第一拘束面１０２及び第二拘束面１０３に跨り第一範囲と隣り合う第二範囲とを、平面部１０１に対して傾斜した変位方向に相対的に平行移動させることで第一範囲と第二範囲との間に壁部１０６を形成するとともに、第一範囲と第二範囲とを変位方向に平行移動する際に、第二範囲から壁部１０６に向けて材料を流動させることで、壁部１０６をせん断変形させ、壁部１０６のせん断変形部１０７のせん断変形特性を評価するせん断変形特性評価方法。【選択図】図４