Toughness

Japanese: toughness
Toughness

…Furthermore, there is a double cup type cut surface that belongs to the ductile side, in which after localized shrinkage, a crack occurs in the center and spreads to the periphery, but instead of shear fracture, the material stretches and breaks into cup shapes on both sides of the fracture surface. In contrast, there is a term called toughness that describes the tenacity of a material. Toughness is indicated by the amount of work per unit volume required to cause fracture, etc. …

*Some terminology explanations that mention "toughness" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…さらに延性側に属する切断面として二重カップ型があり,これは,局部収縮の後,中心部に亀裂が生じて周辺部に伝わるが,せん断破壊はせず,伸びて破断面の両側ともカップ状に破断するものである。 これに対して,材料のねばり強さを表す言葉に靱性(じんせい)toughnessがある。靱性は,破壊を起こすのに要する単位体積当りの仕事量などを目安として示される。…

※「toughness」について言及している用語解説の一部を掲載しています。

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