…The strain and stress of a solid are almost proportional when the strain is small (Hooke's law). This proportionality coefficient is called the elastic coefficient, or modulus of elasticity. Since there are six components of stress and six components of strain, there are 36 elastic coefficients. However, since stress and strain are symmetric tensors, the number of independent coefficients is 21 in the most general case. … *Some of the terminology explanations that mention "modulus of elasticity" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…固体のひずみと応力は,ひずみが小さいときはほぼ比例関係にある(フックの法則)。この比例係数を弾性係数,または弾性率modulus of elasticityという。応力の成分,ひずみの成分はそれぞれ6個あるので,弾性係数の数は36個あることになるが,応力,ひずみは対称テンソルであるから,独立な係数の数はもっとも一般的な場合21個である。… ※「modulus of elasticity」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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