Multidissipative micromorphic media

Micromorphic continuum theories are a valid alternative for the representation of the behaviour of complex materials and for the prevention of localisation issues in strain softening constitutive models. Regarding the constitutive point of view, many of the applications that can be found in the literature focus on specific constitutive models, mainly elastoplastic, with the presence of scalar damage in some contributions. The present paper aims to widen the constitutive aspects of micromorphic theories by proposing a general framework for the representation of multiple dissipative mechanisms, due to elastoplasticity and elastic degradation, possibly coupled between them.