...When an external force acts on an object, the distributed internal force that occurs within the object as a reaction is called stress. The magnitude of stress is defined by the magnitude of the internal force acting on a unit area, which is also called stress intensity or stress strength, but generally stress intensity is simply called stress, and in the following explanations, stress refers to the stress per unit area. Therefore, the unit of stress has the dimension of force ÷ area, and kgf/cm2 and kgf/ mm2 are often used, while in countries that use the imperial system, such as the United States and the United Kingdom, psi (pounds per square inch) is used. ... *Some of the terminology explanations that mention "stress intensity" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…物体に外部から力が作用するとき,その反作用として物体内に生ずる分布内力を応力という。応力の大きさは単位面積に作用する内力の大きさにより定義され,これを応力度あるいは応力強さともいうが,一般には応力度のことを単に応力と呼び,以下の解説でも応力という場合は単位面積当りの応力を指すことにする。したがって,応力の単位は〈力÷面積〉の次元をもちkgf/cm2,kgf/mm2が多く用いられ,英米などヤード・ポンド法の国ではpsi(ポンド毎平方インチ)が用いられる。… ※「応力度」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。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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