A constitutive model considering creep damage of wood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU152303" target="_blank" >RIV/00216305:26110/24:PU152303 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/24:43924874

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11043-024-09679-3" target="_blank" >https://link.springer.com/article/10.1007/s11043-024-09679-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11043-024-09679-3" target="_blank" >10.1007/s11043-024-09679-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A constitutive model considering creep damage of wood

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

A constitutive model considering creep damage of wood

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MECHANICS OF TIME-DEPENDENT MATERIALS

ISSN

1385-2000

e-ISSN

1573-2738

Svazek periodika

28

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

21

Strana od-do

163-183

Kód UT WoS článku

001171810600001

EID výsledku v databázi Scopus

2-s2.0-85186248286