Fracture energy based bi-dissipative damage model for concrete

By C. Comi, Umberto Perego. 2001

264 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/d712f7410b475aa99f08f8a90c10bb74cde25d88

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In Civil and Structural Engineering

In Mechanics of Materials

Citations in the corpus

An extended FE strategy for transition from continuum damage to mode I cohesive crack propagation (2007, unknown): “considering a further damage activation function [4].”
Parameter identification in explicit structural dynamics: performance of the extended Kalman filter (2004, methodology): “In all the analyses presented in Section 5, h has been assumed smaller than the bandwidth ‘ [28,35] so that the pre-peak branch of the r e law does not need to be modified.”
Coupling damage and plasticity for a phase-field regularisation of brittle, cohesive and ductile fracture: One-dimensional examples (2017, unknown): “The scalar damage constitutive function # ( ') can be interpreted as the density of the energy dissipated by the material during a homogeneous damage process (such that '′( $ ) = 0 ), where the damage variable of the material point grows from 0 to '; # 1 = # (1) represents the specific fracture ener”
Gradient Damage Models and Their Use to Approximate Brittle Fracture (2011, unknown): “For concrete, a brittle material, the typical values for the material parameters are (see e.g. Bazant and Pijaudier-Cabot (1989) and Comi and Perego (2001)): Using the relations (71), we ﬁnd 2 D 0 = 106 mm , ℓ = 38 mm , The value of the thickness crack band in uniaxial tension test is fairly…”
An overview of the modelling of fracture by gradient damage models (2016, unknown): “For a brittle material such as concrete, typical values for material parameters are (see e.g. [16]): Using relations (78), we ﬁnd 2 D 1 = 106 mm , = 38 mm , Such values are consistent with the order of magnitude of the aggregates size in concrete which range from 10mm to 40mm. 4.”
Chemo-mechanical modelling of the external sulfate attack in concrete (2017, background): “The evolution of these variables is governed by the loading-unloading conditions proposed in [28] and expressed in term of an inelastic effective stress σ′′ = σ + βp1, with β (β ≤ b) a material parameter which tunes the level of material degradation caused by the fluid pressure and, hence, by the ch”
Energy Dissipation and Release During Coal Failure Under Conventional Triaxial Compression (2015, background): “behaviors of coal (e.g., Kawamoto et al. 1988; Nawrocki and Dusseault 1995; Swoboda and Yang 1999; Ju and Xie 2000; Krajcinovic 2000; Lemaitre et al. 2000; Comi and Perego 2001; Zhao et al. 2005; Wu et al. 2006; Badel et al. 2007; Chang et al. 2007; Einav et al. 2007; Xiao et al. 2010; Peng et al. 2”
From the onset of damage to rupture: construction of responses with damage localization for a general class of gradient damage models (2013, methodology): “…(Pijaudier-Cabot and Bažant (1987); Bažant and Pijaudier-Cabot (1988); Pijaudier-Cabot and Benallal (1993)) and the gradient (Peerlings et al. (1996, 1998); Comi (2001); Comi and Perego (2001); Lorentz et al. (2011)) damage approaches, see also Lorentz and Andrieux (2003) for an overview.”
The issues of the uniqueness and the stability of the homogeneous response in uniaxial tests with gradient damage models (2011, background): “One can distinguish: (i) the integral procedure which makes use of a weight function and integrates the state variables over a typical domain whose size is related to the characteristic length (Pijaudier-Cabot and Bazant, 1987); (ii) the gradient scheme which introduces higher order terms with respe”
Recycled aggregate concrete (2017, unknown): “Therefore, fracture energy-based continuum approaches in the framework of the flow theory of plasticity, see a.o. Etse and Willam [9], Comi and Perego [10]; or of the continuum damage theory, see a.o. Bazant and Oh [11], Oliver [12], were recurrently considered in the literature to model brittle pos”