2026-04-17T03:22:43Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/697672025-01-14T09:32:48Zcom_10324_966com_10324_952com_10324_894col_10324_967

Čarija, Jadran Marenić, Eduard Jarak, Tomislav Nikolić, Mijo 2024-09-16T08:15:06Z 2024-09-16T08:15:06Z 2024 Applied Sciences, 2024, Vol. 14, Nº. 3, 1287 2076-3417 https://uvadoc.uva.es/handle/10324/69767 10.3390/app14031287 1287 3 Applied Sciences 14 2076-3417 Producción Científica 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. Fundación Croata para la Ciencia - (project HRZZ-UIP-2020-02-6693) Gobierno de Croacia y Unión Europea, Fondo Europeo de Desarrollo Regional (FEDER) - (project KK.01.1.1.02.0027) Unión Europea, Ministerio de Ciencia, Innovación y Universidades/Agencia Estatal de Investigación (AEI)/10.13039/501100011033 - (project PID2022-140117NB-I00) application/pdf eng MDPI info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2024 The authors Atribución 4.0 Internacional Discrete element method Lattice theory Structural engineering Estructuras (Construcción) Dynamics, Rigid Elasticity Elasticidad Fracture propagation Fractura, Mecánica de la Structural failures Fallas estructurales Resistencia de materiales Materials science Ciencia de los materiales 3305.33 Resistencia de Estructuras 3313 Tecnología E Ingeniería Mecánicas 3312 Tecnología de Materiales Discrete lattice element model for fracture propagation with improved elastic response info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.mdpi.com/2076-3417/14/3/1287 SI