Results 51 to 60 of about 24,678 (163)
Modelling and Simulation in Engineering, 2016 The problem of brittle fracture of structures at low temperature conditions connected to damage accumulation and ductile-brittle transition in metals. The data for locomotive tire contact impact fatigue and spalling are presented.
Valeriy Lepov +3 more
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Damage Constitutive Model of Microcrack Rock under Tension
Advances in Civil Engineering, 2020 To investigate the tensile properties of brittle rock with microdamage, an indirect tensile test was conducted. High-speed image acquisition and acoustic emission (AE) were applied to record the process.
Huiya Niu +3 more
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Meso-mechanism of rock failure influenced by bolt anchorage under uniaxial compression loading
Yantu gongcheng xuebao, 2018 As an important support method, the bolt anchoring system is widely used to control the dynamic disasters of deep brittle surrounding rock, but deep rock engineering practices have been beset by the failure of brittle rock with bolt support because the ...
WANG Bin 1, 2, 3, NING Yong 1, FENG Tao 1, ZNEG Ze-min 1, GUO Ze-yang 1
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Frontiers in Earth ScienceIntroductionDuring the excavation of deep underground engineering, stress redistribution in rock mass often leads to obvious stress-deformation failure characteristics.
Guoping Peng, Wei Lin, Mengdi Zhao
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DAMAGE MODELING AND ASSESSMENT FOR BRITTLE MATERIALS
Proceedings of International Structural Engineering and Construction, 2017 Observed nonlinearities in frictional and brittle solids such as concrete, rocks, ceramics, and some composites arise mainly due to the nucleation and propagation of microvoids and microcracks. Microcrack formation, propagation, and coalescence damage the material and renders it more compliant.
Siamak Yazdani +4 more
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Molecular Dynamics Simulation of Cutting Single-Crystal Germanium at Different Heating Temperatures
Applied SciencesThe crystal structure evolution and phase transformation of single-crystal germanium during temperature-assisted nanomachining were investigated using the molecular dynamics method. The differences in surface atomic distribution, material removal volume,
Xuan Liu, Rongzhe Li
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Dehydration drives damage in the freezing of brittle hydrogels
Science AdvancesIt is widely known that freezing breaks soft, wet materials. However, the mechanism underlying this damage is still not clear. To understand this process, we freeze model, brittle hydrogel samples, while observing the growth of ice-filled cracks that break these apart.
Shaohua Yang +8 more
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Applied SciencesA coupled thermomechanical non-ordinary state-based peridynamics (NOSB-PD) model is developed to simulate the dynamic response arising from temperature and to predict the crack propagation with thermal shocks in brittle and ductile solids.
Hui Li +5 more
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Micromechanics of rock damage: Advances in the quasi-brittle field
Journal of Rock Mechanics and Geotechnical Engineering, 2017 Constitutive models play an essential role in numerical modeling and simulation of nonlinear deformation, progressive damage and failure of rock-like materials and structures.
Qizhi Zhu, Jianfu Shao
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eXPRESS Polymer Letters, 2014 A novel method for comparing structural health of different types of brittle epoxy nanocomposites filled with carbon nanostructured fillers is presented.
F. Inam, B. R. Bhat, N. Luhyna, T. Vo
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