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Description of Brittle Damage in Concrete [PDF]

open access: yesCommunications, 2002
A simple model of the brittle damage evolution in concrete is presented. The damage evolution is assumed as an isotropic one and the level of damages in material is described by the scalar parameter. The physical equations for this case are formulated.
Jan Kubik, Zbigniew Perkowski
doaj   +2 more sources

A coupled elastoplastic damage model for brittle rocks

open access: yesFracture and Structural Integrity, 2020
Brittle rock contains an important plastic deformation, which causes microcracks when coupled with stress-induced damage. A new coupled elastoplastic damage model is established in order to discuss the damage behaviors found in brittle rock, based on ...
Zheng Li   +3 more
doaj   +4 more sources

Isotropic brittle damage and unilateral effect [PDF]

open access: yesComptes Rendus. Mécanique, 2010
This Note investigates the isotropic version of a general macroscopic model for brittle damage accounting for unilateral effects proposed by Welemane and Cormery (H. Welemane, F.
Goidescu, Cristina, Welemane, Hélène
core   +7 more sources

A Review of the Machining Mechanisms in Field-Assisted Cutting of Brittle Materials [PDF]

open access: yesMicromachines
Brittle materials such as single crystals, polycrystalline ceramics, and amorphous glass are indispensable in modern industry. Driven by improvements in equipment performance, the required fabrication precision for optical elements and devices has ...
Xuexiang Sheng   +2 more
doaj   +2 more sources

Graded damage in quasi‐brittle solids [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2022
AbstractA novel approach to damage modeling for quasi‐brittle solids is presented relying upon a differential inclusion that is closely related to the one of implicit gradient models. The proposed formulation naturally fits in the so‐called nonlocal standard approach, whereby the framework of generalized standard materials is extended to include ...
Valoroso N., Stolz C.
openaire   +5 more sources

Studying the Damage Evolution and the Micro-Mechanical Response of X8CrMnNi16-6-6 TRIP Steel Matrix and 10% Zirconia Particle Composite Using a Calibrated Physics and Crystal-Plasticity-Based Numerical Simulation Model

open access: yesCrystals, 2021
The mechanical behavior of newly developed composite materials is dependent on several underlying microstructural phenomena. In this research, a periodic 2D geometry of cast X8CrMnNi16-6-6 steel and 10% zirconia composite is virtually constructed by ...
Faisal Qayyum, Sergey Guk, Ulrich Prahl
doaj   +1 more source

A new quasi-brittle damage model implemented under quasi-static condition using bond-based peridynamics theory for progressive failure [PDF]

open access: yesTheoretical and Applied Mechanics, 2023
A novel quasi-brittle damage model implemented under quasistatic loading condition using bond-based peridynamics theory for progressive failure is proposed to better predict damage initiation and propagation in solid materials.
Yakin H.N.   +3 more
doaj   +1 more source

Investigation on the Expression Ability of a Developed Constitutive Model for Rocks Based on Statistical Damage Theory

open access: yesLithosphere, 2022
The three-parameter Weibull distribution has a strong ability to fit many kinds of experimental data, which provides a solution for using a unified expression to characterize the elastic-brittle, strain softening, elastic-plasticity, and other ...
Meiben Gao   +8 more
doaj   +1 more source

An Anisotropic Damage Model of Quasi-Brittle Materials and Its Application to the Fracture Process Simulation

open access: yesApplied Sciences, 2022
Accurate predictions of the failure behaviors of quasi-brittle materials are of practical significance to underground engineering. In this work, a novel anisotropic damage model is proposed based on continuous damage mechanics.
Haijing Wang   +5 more
doaj   +1 more source

Exploring the effect of stress-strain behavior of cemented tailings backfill on the stability of inclined sill mat: A numerical study

open access: yesAlexandria Engineering Journal, 2023
This study aims to investigate the impact of the stress–strain behaviour of cemented tailings backfill (CTB) on the stability of sill mat structures used in underhand cut-and-fill mining.
Jing Guo
doaj   +1 more source

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