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In solid mechanics, the tangent modulus is the slope of the stress–strain curve at any specified stress or strain. Below the proportional limit (the limit of the linear elastic regime) the tangent modulus is equivalent to Young's modulus. Above the proportional limit the tangent modulus varies with strain and is most accurately found from test data. The Ramberg–Osgood equation relates Young's modulus to the tangent modulus and is another method for obtaining the tangent modulus.

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  • Il modulo tangente è dato dal valore della pendenza della curva sforzo-deformazione (σ-ε) corrispondente ad un certo valore di sforzo o deformazione. In campo elastico la curva sforzo-deformazione è rettilinea e il modulo tangente è uguale al modulo di Young. In campo plastico il modulo tangente può essere ricavato sperimentalmente o per via teorica (a partire dal modulo di Young attraverso la ). (it)
  • In solid mechanics, the tangent modulus is the slope of the stress–strain curve at any specified stress or strain. Below the proportional limit (the limit of the linear elastic regime) the tangent modulus is equivalent to Young's modulus. Above the proportional limit the tangent modulus varies with strain and is most accurately found from test data. The Ramberg–Osgood equation relates Young's modulus to the tangent modulus and is another method for obtaining the tangent modulus. The tangent modulus is useful in describing the behavior of materials that have been stressed beyond the elastic region. When a material is plastically deformed there is no longer a linear relationship between stress and strain as there is for elastic deformations. The tangent modulus quantifies the "softening" or "hardening" of material that generally occurs when it begins to yield. Although the material softens it is still generally able to sustain more load before ultimate failure. Therefore, more weight efficient structure can be designed when plastic behavior is considered. For example, a structural analyst may use the tangent modulus to quantify the buckling failure of columns and flat plates. (en)
  • De tangentiële elasticiteitsmodulus is de richtingscoëfficiënt van de spanning-rek curve op een welbepaalde spanning of rek. Onder de proportionaliteitsgrens is de tangentiële modulus gelijk aan de Young's modulus. Boven deze grens varieert de tangentiële modulus met de rek. Deze is het beste te bepalen aan de hand van testresultaten. Dit kan onder andere aan de hand van de , die de Young's modulus lieert aan de tangentiële modulus. De tangentiële modulus is handig om het gedrag van materialen te beschrijven, die spanningen ondergingen in het elastische gebied. Wanneer een materiaal plastisch vervormd is, is er niet langer een lineair verband tussen spanning en rek, zoals dat wel het geval is bij elastische vervormingen. De tangentiële modulus beschrijft de "verzachting" van het materiaal, die optreedt wanneer het materiaal begint te vloeien. Hoewel het materiaal zachter wordt, kan het nog steeds belastingen opnemen tot het uiteindelijke falen. (nl)
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  • Il modulo tangente è dato dal valore della pendenza della curva sforzo-deformazione (σ-ε) corrispondente ad un certo valore di sforzo o deformazione. In campo elastico la curva sforzo-deformazione è rettilinea e il modulo tangente è uguale al modulo di Young. In campo plastico il modulo tangente può essere ricavato sperimentalmente o per via teorica (a partire dal modulo di Young attraverso la ). (it)
  • In solid mechanics, the tangent modulus is the slope of the stress–strain curve at any specified stress or strain. Below the proportional limit (the limit of the linear elastic regime) the tangent modulus is equivalent to Young's modulus. Above the proportional limit the tangent modulus varies with strain and is most accurately found from test data. The Ramberg–Osgood equation relates Young's modulus to the tangent modulus and is another method for obtaining the tangent modulus. (en)
  • De tangentiële elasticiteitsmodulus is de richtingscoëfficiënt van de spanning-rek curve op een welbepaalde spanning of rek. Onder de proportionaliteitsgrens is de tangentiële modulus gelijk aan de Young's modulus. Boven deze grens varieert de tangentiële modulus met de rek. Deze is het beste te bepalen aan de hand van testresultaten. Dit kan onder andere aan de hand van de , die de Young's modulus lieert aan de tangentiële modulus. (nl)
rdfs:label
  • Modulo tangente (it)
  • Tangentiële elasticiteitsmodulus (nl)
  • Tangent modulus (en)
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