### Young''s modulus : definition of Young''s modulus and synonyms of Young''s modulus …

Young''s modulus, also known as the tensile modulus, is a measure of the stiffness of an elastic material and is a quantity used to characterize materials. It is defined as the ratio of the uniaxial stress over the uniaxial strain in the range of stress in which Hooke''s Law holds. [1]