Results 11 to 20 of about 2,504,311 (348)

A novel phase‐field approach to brittle damage mechanics of gradient metamaterials combining action formalism and history variable

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2021
Metamaterials response is generally modeled by generalized continuum based theories. Their inherent substructure leads to a necessity for higher‐order theories, and especially in damage mechanics, such a generalization is difficult to acquire. We exploit
B. Abali   +3 more
semanticscholar   +1 more source

Damage as Gamma-limit of microfractures in anti-plane linearized elasticity [PDF]

open access: yes, 2008
A homogenization result is given for a material having brittle inclusions arranged in a periodic structure. <br/> According to the relation between the softness parameter and the size of the microstructure, three different limit models are ...
Adams R. A.   +5 more
core   +11 more sources

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

Nanoscale removal mechanisms in abrasive machining of brittle solids

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
Brittle solids with dominant covalent-ionic bonding, including single crystals, polycrystals, and optical glass, are core materials for modern microelectronic and optoelectronic devices that are widely used in energy, communication, transportation, and ...
Shuiquan HUANG   +3 more
doaj   +1 more source

Damage and Failure in a Statistical Crack Model

open access: yesApplied Sciences, 2020
In this paper I will take a close look at a statistical crack model (SCM) as is used in engineering computer codes to simulate fracture at high strain rates.
L.G. Margolin
doaj   +1 more source

Adaptive and highly accurate numerical treatment for a gradient‐enhanced brittle damage model

open access: yesInternational Journal for Numerical Methods in Engineering, 2020
We present an adaptive numerical treatment for a recently published model for brittle damage with gradient enhancement. We employ adaptive strategies both in time and space, yielding detailed investigations of the convergence behavior: the damage ...
A. Vogel, P. Junker
semanticscholar   +1 more source

A Preliminary Investigation on the Role of Brittle Fracture in the Kinematics of the 2014 San Leo Landslide

open access: yesGeosciences, 2019
The stability of high rock slopes is largely controlled by the location and orientation of geological features, such as faults, folds, joints, and bedding planes, which can induce structurally controlled slope instability. Under certain conditions, slope
Davide Donati   +3 more
doaj   +1 more source

On the Residual Static and Impact Capacity of Shear-Reinforced Concrete Beams Subjected to an Initial Impact

open access: yesApplied Sciences, 2022
Impact loads in previous research showed to induce brittle responses of statically flexure-critical reinforced concrete (RC) beams designed for ductility.
Viktor Peterson   +2 more
doaj   +1 more source

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