Results 41 to 50 of about 998 (119)
Growth of thermoplastic shear band
Journal of Materials Research and TechnologyShear localization is a fundamental and widely observed non-equilibrium phenomenon in metallic materials subjected to impulsive loadings. Despite extensive research over several decades, the evolution of shear bands still remains poorly understood.
Dong-Lin Sheng +3 more
doaj +1 more source
Characterization of Plastic Deformation in CuZr Metallic Glasses Subjected to the Rolling Process
Advances in Materials Science and Engineering, 2023 Using the rolling process, it is possible to induce multiple shear bands in the microstructure of metallic glasses (MGs) and improve the overall plasticity in the subsequent mechanical loadings.
Ramaswamy Sivaraman +4 more
doaj +1 more source
On the persistence of adiabatic shear bands
EPJ Web of Conferences, 2012 It is generally agreed that the initiation and development of adiabatic shear bands (ASBs) are manifestations of damage in metallic materials subjected to high strain rates and large strains as those due to impact in a Hopkinson Bar system.
Bassim M.N. +2 more
doaj +1 more source
Modelling the Shear Banding in Gradient Nano-Grained Metals
Nanomaterials, 2021 Extensive experiments have shown that gradient nano-grained metals have outstanding synergy of strength and ductility. However, the deformation mechanisms of gradient metals are still not fully understood due to their complicated gradient microstructure.
Tianyu Chen, Jianjun Li
doaj +1 more source
Dynamic interaction of multiple shear bands [PDF]
Scientific Reports, 2018 AbstractA mechanical model for waves impinging different configurations of multiple shear bands already formed in a ductile material, allows to analyze the ways in which dynamic interactions promote failure. It is shown that the presence of more than one shear band may lead to resonance and correspondent growth of a shear band or, conversely, to its ...
Giarola, Diana +2 more
openaire +3 more sources
Philosophical Magazine LettersMetallic glasses (MGs) exhibit superior engineering properties such as high strength and good corrosion resistance but often suffer from limited plasticity.
Tejaswini Pulavarthi, Jayanta Das
doaj +1 more source
EPJ Web of Conferences, 2015 Shear bands formation in collapsing thick walled cylinders occurs in a spontaneous manner. The advantage of examining spontaneous, as opposed to forced shear localization, is that it highlights the inherent susceptibility of the material to adiabatic ...
Lovinger Zev +2 more
doaj +1 more source
Entropy, 2020 Lamellar eutectic structure in Al0.7CoCrFeNi high-entropy alloy (HEA) is emerging as a promising candidate for structural applications because of its high strength-ductility combination. The alloy consists of a fine-scale lamellar fcc + B2 microstructure
Bharat Gwalani +8 more
doaj +1 more source
Strain localisation in mechanically layered rocks beneath detachment zones: insights from numerical modelling [PDF]
Solid Earth, 2013 We have designed a series of fully dynamic numerical simulations aimed at assessing how the orientation of mechanical layering in rocks controls the orientation of shear bands and the depth of penetration of strain in the footwall of detachment zones ...
L. Le Pourhiet +5 more
doaj +1 more source
Critical packing in granular shear bands [PDF]
Physical Review E, 2007 In a realistic three-dimensional setup, we simulate the slow deformation of idealized granular media composed of spheres undergoing an axisymmetric triaxial shear test. We follow the self-organization of the spontaneous strain localization process leading to a shear band and demonstrate the existence of a critical packing density inside this failure ...
Fazekas, S., Török, J., Kertész, J.
openaire +3 more sources