The crack paths in strain-hardening cement-based composites under tensile loading are simulated using a two-dimensional lattice model. A regular triangular lattice model (formed by truss elements) accounting for the actual multiphase meso-scale structure of the material is developed. The trusses are assumed to have a linear elastic behavior in compression, whereas in tension a linear elastic behavior up to a first cracking stress is followed by an inelastic post-cracking curve. Some numerical results related to tensile specimens are presented in order to investigate the influence of microstructure characteristics of the material on its ductility.
Tensile cracking behaviour of strain-hardening cement-based composites using a micromechanical lattice model / Carpinteri, Andrea; Brighenti, Roberto; Spagnoli, Andrea; Vantadori, Sabrina. - (2009), pp. 1151-1158. (Intervento presentato al convegno International Conference on Crack Paths (CP 2009) tenutosi a Vicenza (Italy) nel 23-25 September 2009).
Tensile cracking behaviour of strain-hardening cement-based composites using a micromechanical lattice model.
CARPINTERI, Andrea;BRIGHENTI, Roberto;SPAGNOLI, Andrea;VANTADORI, Sabrina
2009-01-01
Abstract
The crack paths in strain-hardening cement-based composites under tensile loading are simulated using a two-dimensional lattice model. A regular triangular lattice model (formed by truss elements) accounting for the actual multiphase meso-scale structure of the material is developed. The trusses are assumed to have a linear elastic behavior in compression, whereas in tension a linear elastic behavior up to a first cracking stress is followed by an inelastic post-cracking curve. Some numerical results related to tensile specimens are presented in order to investigate the influence of microstructure characteristics of the material on its ductility.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
