Results 161 to 170 of about 2,822,738 (195)
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A novel constitutive model with plastic internal and damage variables for brittle rocks

, 2021
The damage evolution and plastic flow are usually coupled for rocks due to heterogeneity, which is significant for the design and construction of underground structures.
Chonghong Ren   +5 more
semanticscholar   +1 more source

Assessing the effect of open stope geometry on rock mass brittle damage using a response surface methodology

International Journal of Rock Mechanics And Mining Sciences, 2018
• An assessment has been made on the effect of open stope geometry on rock mass brittle damage.
Shahriyar Heidarzadeh   +2 more
semanticscholar   +1 more source

A second strain gradient damage model with a numerical implementation for quasi-brittle materials with micro-architectures

Mathematics and mechanics of solids, 2020
In this paper, a quasi-brittle damage model for micro-architectural materials is presented within the framework of isogeometric analysis to exploit the high-order continuity of the non-uniform B-spline basis functions.
T. Nguyen, J. Niiranen
semanticscholar   +1 more source

A phase-field damage model with micro inertia effect for the dynamic fracture of quasi-brittle solids

, 2020
Being able to deal with complex crack patterns like branching, merging and fragmentation, phase-field models are promising in the computational modeling of dynamic fracture in solids.
L. Hai, Jian-Ying Wu, Jie Li
semanticscholar   +1 more source

Incorporation of tension-compression asymmetry into plastic damage phase-field modeling of quasi brittle geomaterials

, 2020
Both experiments and theoretical investigations have evidenced the existence of compressive-shear fracture mode in geomaterials like concrete, rocks and gypsum.
T. You, Qizhi Zhu, Peng-Fei Li, J. Shao
semanticscholar   +1 more source

Phase field and gradient enhanced damage models for quasi-brittle failure: A numerical comparative study

Engineering Fracture Mechanics, 2019
This paper presents a comparative study of the gradient-enhanced damage models (GED) of Peerlings et al. (1996), Vandoren and Simone (2018) and the phase field damage/fracture model (PFM) of Wu (2017), Wu and Nguyen (2018) within the context of the ...
T. Mandal   +2 more
semanticscholar   +1 more source

A gradient-damage theory for fracture of quasi-brittle materials

Journal of the mechanics and physics of solids, 2019
We present a gradient-damage theory for fracture of “quasi-brittle” materials under tensile dominated stress states. We develop our theory using the method of virtual-power.
S. Narayan, L. Anand
semanticscholar   +1 more source

Investigating brittle damage of buried pipelines under dip-slip faulting with peridynamics

Acta Geotechnica, 2022
Panyu Liao   +4 more
semanticscholar   +1 more source

A unified phase field damage model for modeling the brittle-ductile dynamic failure mode transition in metals

Engineering Fracture Mechanics, 2019
Dynamic brittle fracture and shear banding are typical failure modes in metals under high strain rate loading. In this paper, a unified phase field damage model is developed to capture the above two failure modes’ transition naturally by allowing the ...
Dongyang Chu   +6 more
semanticscholar   +1 more source

An experimental study of mechanical behavior of brittle rock-like specimens with multi-non-persistent joints under uniaxial compression and damage analysis

International journal of damage mechanics, 2019
The mechanical behavior of jointed rock masses significantly affects the stability of rock engineering applications. In this paper, the peak strength, Young's modulus and failure patterns of brittle rock-like specimens with multi-non-persistent joints ...
Wendong Yang   +3 more
semanticscholar   +1 more source

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