RT info:eu-repo/semantics/article
T1 Discrete lattice element model for fracture propagation with improved elastic response
A1 Čarija, Jadran
A1 Marenić, Eduard
A1 Jarak, Tomislav
A1 Nikolić, Mijo
K1 Discrete element method
K1 Lattice theory
K1 Structural engineering
K1 Estructuras (Construcción)
K1 Dynamics, Rigid
K1 Elasticity
K1 Elasticidad
K1 Fracture propagation
K1 Fractura, Mecánica de la
K1 Structural failures
K1 Fallas estructurales
K1 Resistencia de materiales
K1 Materials science
K1 Ciencia de los materiales
K1 3305.33 Resistencia de Estructuras
K1 3313 Tecnología E Ingeniería Mecánicas
K1 3312 Tecnología de Materiales
AB This research presents a novel approach to modeling fracture propagation using a discrete lattice element model with embedded strong discontinuities. The focus is on enhancing the linear elastic response within the model followed by propagation of fractures until total failure. To achieve this, a generalized beam lattice element with an embedded strong discontinuity based on the kinematics of a rigid-body spring model is formulated. The linear elastic regime is refined by correcting the stress tensor at nodes within the domain based on the internal forces present in lattice elements, which is achieved by introducing fictitious forces into the standard internal force vectors to predict the right elastic response of the model related to Poisson’s effect. Upon initiation of the first fractures, the procedure for the computation of the fictitious stress tensor is terminated, and the embedded strong discontinuities are activated in the lattice elements for obtaining an objective fracture and failure response. This transition ensures a shift from the elastic phase to the fracture propagation phase, enhancing the predictive capabilities in capturing the full fracture processes.
PB MDPI
SN 2076-3417
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/69767
UL https://uvadoc.uva.es/handle/10324/69767
LA eng
NO Applied Sciences, 2024, Vol. 14, Nº. 3, 1287
NO Producción Científica
DS UVaDOC
RD 19-oct-2024