2225 硬さ試験に及ぼす2点間距離の影響(S03-1 材料の塑性挙動の構成式のモデル化とシミュレーション(1),S03 材料の塑性挙動の構成式のモデル化とシミュレーション)

抄録

This paper studies the critical indentation distance in multiple hardness testing. Finite element analyses were carried out simulating Brinnell, Vickers and Rockwell A and C hardness testing. The critical distance recommended in JIS did not cover the critical distance judged from the overlap of plastic deformation in the former three hardness testing but that had excessive margin in the latest hardness testing.