On the Kachanov-Rabotnov continuum damage model

Kirjoittajat

  • Harm Askes The University of Sheffield
  • Juha Hartikainen Tampereen yliopisto
  • Kari Kolari VTT
  • Reijo Kouhia Tampereen yliopisto https://orcid.org/0000-0002-3378-5612
  • Timo Saksala Tampereen yliopisto
  • Jani Vilppo Tampereen yliopisto

Avainsanat:

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

Abstrakti

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.

Osasto
Emeritusprofessori Tapio Salmen muistonumero

Julkaistu

2020-03-30

Viittaaminen

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