Journal ArticleDOI
A computational methodology for simulating quasi-brittle fracture problems
Kumchol Yun,Zhenqing Wang,Mengzhou Chang,Jingbiao Liu,Tae-Jong Kim,Nam-Jin Son,Kyongsu Ji,Sakaya Ronald +7 more
TLDR
In this article, an efficient and simple methodologies for simulating the three dimensional (3D) quasi-brittle fracture problems is presented. But the method does not identify the crack plane within each element, but it couples well with smeared crack method by identifying all the elements through which the crack surface passes.About:
This article is published in Computers & Structures.The article was published on 2019-04-15. It has received 14 citations till now. The article focuses on the topics: Finite element method & Stiffness matrix.read more
Citations
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Journal ArticleDOI
A localizing gradient enhanced isotropic damage model with Ottosen equivalent strain for the mixed-mode fracture of concrete
TL;DR: In this paper, a new equivalent strain based on the four-parameter failure criterion by Ottosen was proposed for incorporation into a standard isotropic damage model for mixed-mode fracture, and its performance benchmarked against three commonly used equivalent strain definitions (Mazars, modified von Mises, Rankine).
Journal ArticleDOI
Multi-scale lattice method for mesoscopic crack growth simulation of concrete structures
TL;DR: In this article, a multi-scale beam lattice method is developed to simulate the fracture process of concrete structures starting from meso-scale, where material is considered to be homogeneous for reducing computational cost.
Journal ArticleDOI
Adaptive multi-scale beam lattice method for competitive trans-scale crack growth simulation of heterogeneous concrete-like materials
TL;DR: An adaptive multi-scale beam lattice method (AMBLM) is developed to simulate trans-scale crack growth process from meso-scale to macro-scale for quasi-brittle heterogeneous concrete-like materials with low computation cost.
Journal ArticleDOI
A continuum damage-based three-dimensional fracture simulation method for brittle-like materials:
Bin Sun,Zhao-Dong Xu +1 more
TL;DR: In this paper, a 3D fracture process of brittle-like materials and improve the crack growth path was studied and the authors showed that current numerical methods cannot simulate well three-dimensional (3D) fracture processes of solids.
Comparative studies of 3D-constitutive models for concrete: Application to mixed-mode fracture
TL;DR: In this article, the predictive capabilities of 3D-constitutive models for concrete when used for the simulation of mixed-mode fracture in consequence of shear-tensile loading are analyzed.
References
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Journal ArticleDOI
Virtual crack closure technique: History, approach, and applications
TL;DR: An overview of the virtual crack closure technique is presented, the approach used is discussed, the history summarized, and insight into its applications provided.
Journal ArticleDOI
Gradient-dependent plasticity: formulation and algorithmic aspects
René de Borst,Hans Muhlhaus +1 more
TL;DR: In this paper, the yield strength not only depends on an equivalent plastic strain measure (hardening parameter), but also on the Laplacian thereof, and the consistency condition now results in a differential equation instead of an algebraic equation as in conventional plasticity.
Journal ArticleDOI
A new method for modelling cohesive cracks using finite elements
TL;DR: In this paper, a model which allows the introduction of displacements jumps to conventional finite elements is developed, where the path of the discontinuity is completely independent of the mesh structure.
Journal ArticleDOI
Comparative study on finite elements with embedded discontinuities
TL;DR: A possible approach to their classification is suggested, with special attention to the type of kinematic enhancement and of internal equilibrium condition, by analyzing the behavior of the simplest finite element – the constant-strain triangle.
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Meso-scale image-based modeling of reinforced concrete and adaptive multi-scale analyses on damage evolution in concrete structures
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