Stiffness Assessment of Cracked Reinforced Concrete Beams Based on a Fictitious Crack Model
Sign Up to like & getrecommendations! Published in 2020 at "KSCE Journal of Civil Engineering"
DOI: 10.1007/s12205-020-2056-0
Abstract: A fictitious crack model is introduced into cracked reinforced concrete beams to assess the changing beam stiffness under loads. Firstly, nonlinear concrete stress distributions near cracks are built based on the model. Then the stress… read more here.
Keywords: fictitious crack; concrete beams; cracked reinforced; crack model ... See more keywords
Numerical modeling of geomaterial fracture using a cohesive crack model in grain-based DEM
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DOI: 10.1007/s40571-019-00295-4
Abstract: This paper aims to study the mechanical behavior of rocks using the cohesive crack model (CCM) and grain-based model (GBM) within the distinct element method (DEM) simulations. In the GBM-DEM, the Voronoi tessellation scheme is… read more here.
Keywords: crack model; grain based; model; grain ... See more keywords
An extended thermal-medium crack model
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DOI: 10.1016/j.apm.2017.11.016
Abstract: Abstract It is important to investigate the effects of heat conduction of crack interior on thermoelastic fields of a cracked material. In this paper, an extended thermal-medium crack model is proposed to address the influences… read more here.
Keywords: medium crack; thermal medium; crack model; crack ... See more keywords
Uncertainty of the smeared crack model applied to RC beams
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DOI: 10.1016/j.engfracmech.2020.107088
Abstract: Abstract A finite element model simulates concrete cracking using a smeared crack approach. The uncertainty of the crack width model is verified by the experimental data from tests of reinforced concrete beams. The parametric analysis… read more here.
Keywords: uncertainty; crack model; model; smeared crack ... See more keywords
A Particle-Based Cohesive Crack Model for Brittle Fracture Problems
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DOI: 10.3390/ma13163573
Abstract: Numerical simulations of the fracture process are challenging, and the discrete element (DE) method is an effective means to model fracture problems. The DE model comprises the DE connective model and DE contact model, where… read more here.
Keywords: fracture; crack model; model; particle based ... See more keywords