Results 11 to 20 of about 3,857 (239)
Experimental and microstructure analysis of the penetration resistance of composite structures
Science and Engineering of Composite Materials, 2021 Composite structures (SiC/UHMWPE/TC4; SiC/TC4/UHMWPE) were designed using silicon carbide (SiC)ceramics, ultra-high-molecular-weight polyethylene (UHMWPE) laminate, and titanium alloys (TC4s).
Zou Youchun, Xiong Chao, Yin Junhui
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Mechanism of Microscopic Fracture of Typical Shell Steel under Impact Loading
Shock and Vibration, 2022 The aim of the current study was to investigate the effects of strain rate and metallographic structure on the fracture mode and fracture pattern of a typical shell steel material under impact loading.
Chuan Zhao +5 more
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HYBRID FINITE-DISCRETE ELEMENT MODELLING OF BLAST-INDUCED EXCAVATION DAMAGED ZONE IN THE TOP-HEADING OF DEEP TUNNELS [PDF]
Civil Engineering Journal, 2017 A hybrid finite-discrete element method (FEM/DEM) is introduced to model the excavation damage zone induced by blast in a deep tunnel. The key components of the hybrid finite-discrete element method, i.e. transition from continuum to discontinuum through
Huaming An +4 more
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A Probabilistic Damage Model of the Dynamic Fragmentation Process in Brittle Materials [PDF]
, 2010 Abstract Dynamic fragmentation is observed in brittle materials such as ceramics, concrete, glass, or rocks submitted to impact or blast loadings. Under such loadings, high-stress-rate tensile fields develop within the target and produce fragmentations characterized by a high density of oriented cracks.
Forquin, Pascal, Hild, François
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Floe-size distributions in laboratory ice broken by waves [PDF]
The Cryosphere, 2018 This paper presents the analysis of floe-size distribution (FSD) data obtained in laboratory experiments of ice breaking by waves. The experiments, performed at the Large Ice Model Basin (LIMB) of the Hamburg Ship Model Basin (Hamburgische Schiffbau ...
A. Herman, K.-U. Evers, N. Reimer
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Experimental Technique for Dynamic Fragmentation of Liquid-Driving Expanding Ring
EPJ Web of Conferences, 2018 Expanding ring experiment is an important method for dynamic fragmentation of solid under 1D tensile loading. Based on the split Hokinson pressure bar (SHPB), a liquid-driving experimental technology was developed for conducting expanding ring tests. The
Zhang Jia +3 more
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Spacetime simulation of dynamic fracture with crack closure and frictional sliding
Advanced Modeling and Simulation in Engineering Sciences, 2018 We combine the asynchronous spacetime discontinuous Galerkin (aSDG) method, an interfacial-damage fracture model, and a dynamic contact model to simulate dynamic fracture and crack closure in brittle materials.
Reza Abedi, Robert B. Haber
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Fragmentation of brittle material by shock wave lithotripsy. Momentum transfer and inertia: a novel view on fragmentation mechanisms [PDF]
Urolithiasis, 2018 Shock wave lithotripsy is the only non-invasive stone therapy and in clinical use since 1980. In spite of decades with millions of patients treated, the mechanism of fragmentation is still under debate. Detailed knowledge of the fragmentation process is required for improvements regarding safety and efficiency.
Wess, Othmar J., Mayer, Juergen
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Results in Surfaces and InterfacesVacuum kinetic spraying (VKS) is a particle deposition process by which various materials can be deposited as films, even at room temperature. In this study, Al2O3 (ceramic, completely brittle), Fe-based bulk metallic glass (BMG, brittle with some ...
Hyungkwon Park +2 more
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Effects of material disorder on impact fragmentation of brittle spheres
Acta Physica Sinica, 2018 Brittle materials have many excellent properties for structural applications, whereas the brittleness and disorder due to defects and micro-cracks cause failure. Fragmentation may occur and often lead to a catastrophic damage, bring dangers to the users especially when brittle materials suffer dynamic loads like impact and explosion.
null Chen Xing +4 more
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