finitastrainsteorier
Finitastrainsteorier, or finite strain theories, are frameworks within continuum mechanics for describing materials undergoing large deformations. They extend small-strain theories by employing nonlinear kinematics and strain measures that remain meaningful when displacements are not small. The term is used in several European languages to denote these theories and their applications to solid mechanics, rubber, and soft tissues.
Key concepts include the deformation gradient F, which maps a reference configuration to the current configuration;
Applications of finite strain theories include metal forming, rubber elasticity, geomechanics, and biomechanics, where deformations are
History and development of finite strain theory emerged in the 20th century with work by Green, Lagrange,