Simulation of crack propagation in mode I of wood by integrating the rapid variation of moisture content into a new cohesive zone model
Idioma
en
Communication dans un congrès avec actes
Este ítem está publicado en
12e Colloque national en calcul des structures, 12e Colloque national en calcul des structures, 2015-05-18, Giens. 2015
Resumen en inglés
In this research, a new model, introducing the influence of the moisture content on the cohesive zone, is proposed and implanted in source code ESOPE of Cast3m. Under the external loading, the crack growth simulation is ...Leer más >
In this research, a new model, introducing the influence of the moisture content on the cohesive zone, is proposed and implanted in source code ESOPE of Cast3m. Under the external loading, the crack growth simulation is carried out using joint element which represents the cohesive interface. The separation in the cohesive interface is specified in terms of the cohesive traction-separation laws. At the beginning of a current time step, the moisture diffusion with the update crack length (precedent step) is estimated; and, mechanical properties in the whole specimen are then updated. Consequently, the moisture variation introduces an additional stress.< Leer menos
Palabras clave en inglés
cohesive zone model
crack length
moisture content
wood
Orígen
Importado de HalCentros de investigación