Publication detail

A constitutive model considering creep damage of wood

TRCALA, M. SUCHOMELOVÁ, P. BOŠANSKÝ, M. NĚMEC, I.

Original Title

A constitutive model considering creep damage of wood

Type

journal article in Web of Science

Language

English

Original Abstract

The serviceability of wooden structures involves multiphysical phenomena, notably the interactions among creep, plasticity, and damage. The influence of creep on the initialization of the damage and on its growth and spread can be adjusted by an additional alpha parameter in order to take into account the coupled effect between creep and damage more properly. We integrate an orthotropic viscoelastic model, based on the generalized Kelvin chain, with an orthotropic damage model, capturing both the immediate nonlinear elastic-plastic-damage response and the time-dependent viscous response of timber. The combination of these material models is important to obtain a realistic description of wood behavior, because the timber shows an immediate nonlinear elastic-plastic-damage response, but also the time-dependent viscous response. In this paper, we algorithmize, implement, and validate the concept of 'creep damage', a phenomenon observed in wooden structures. Benchmark tests reveal two distinct patterns of damage in beech wood, immediate postload damage that evolves over time and damage that occurs and spreads during the loading period.

Keywords

Wood; Time-dependent analysis; Viscoelasticity; Creep; Damage; Finite-element method; Numerical simulation

Authors

TRCALA, M.; SUCHOMELOVÁ, P.; BOŠANSKÝ, M.; NĚMEC, I.

Released

1. 3. 2024

Publisher

SPRINGER

Location

DORDRECHT

ISBN

1573-2738

Periodical

MECHANICS OF TIME-DEPENDENT MATERIALS

Year of study

28

Number

1

State

Kingdom of the Netherlands

Pages from

163

Pages to

183

Pages count

21

URL

https://link.springer.com/article/10.1007/s11043-024-09679-3

BibTex

@article{BUT189795,
  author="Miroslav {Trcala} and Pavlína {Suchomelová} and Michal {Bošanský} and Ivan {Němec}",
  title="A constitutive model considering creep damage of wood",
  journal="MECHANICS OF TIME-DEPENDENT MATERIALS",
  year="2024",
  volume="28",
  number="1",
  pages="163--183",
  doi="10.1007/s11043-024-09679-3",
  issn="1573-2738",
  url="https://link.springer.com/article/10.1007/s11043-024-09679-3"
}