Detail publikace

A constitutive model considering creep damage of wood

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

Originální název

A constitutive model considering creep damage of wood

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

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

Vydáno

1. 3. 2024

Nakladatel

SPRINGER

Místo

DORDRECHT

ISSN

1573-2738

Periodikum

MECHANICS OF TIME-DEPENDENT MATERIALS

Ročník

28

Číslo

1

Stát

Nizozemsko

Strany od

163

Strany do

183

Strany počet

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"
}