On the Kachanov-Rabotnov continuum damage model

Författare

  • Harm Askes The University of Sheffield
  • Juha Hartikainen Tampere University
  • Kari Kolari VTT Technical Research Centre of Finland Ltd
  • Reijo Kouhia Tampere University https://orcid.org/0000-0002-3378-5612
  • Timo Saksala Tampere University
  • Jani Vilppo Tampere University

Nyckelord:

continuum damage mechanics, free energy, dissipation potential, dispersion analysis, finite element analysis

Abstract

In this paper two partially complementary formulations of the simple phenomenological Kachanov-Rabotnov continuum damage constitutive model are presented. The models are based on a consistent thermodynamic formulation using proper expressions for the Helmholtz free energy or its complementary form of the dissipation potential. Basic features of the models are discussed and the behaviour in tensile test and creep problems is demonstrated.

Sektion
Emeritusprofessori Tapio Salmen muistonumero

Publicerad

2020-03-30

Referera så här

Askes, H., Hartikainen, J., Kolari, K., Kouhia, R., Saksala, T., & Vilppo, J. (2020). On the Kachanov-Rabotnov continuum damage model. Rakenteiden mekaniikka, 53(2), 125–144. https://doi.org/10.23998/rm.82528