Results 21 to 30 of about 1,342 (207)
Thermomechanical Variational Principles for Dissipative Materials with Application to Strain Localization in Bulk Metallic Glasses [PDF]
This thesis is concerned with variational principles for general coupled thermomechanical problems in dissipative materials including finite elastic and plastic deformation, non-Newtonian viscosity, rate sensitivity, arbitrary flow and hardening rule, as
Yang, Qiang
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Annealing effect on the evolution of adiabatic shear band under dynamic shear loading in ultra-fine-grained iron [PDF]
In the present study, evolution of adiabatic shear band (ASB) and annealing effect on the evolution of ASB in ultra-fine-grained (UFG) Fe under dynamic shear loading were investigated. The UFG Fe was processed by equal-channel angular pressing (ECAP) via
Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. +4 more
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Ti3Al intermetallic compounds is a lightweight, high-temperature resistant rare aerospace materials, whose dynamic mechanical properties concern the accuracy of simulation analysis and further development in material manufacturing.
Zongxia Fu +5 more
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Effect of Particle Size on the Formation of Adiabatic Shear Band In Particle Reinforced Metal Matrix Composites [PDF]
In this paper, the effect of particle size on the formation of adiabatic shear band in 2024 All matrix composites reinforced with 15% volume fraction of 3.5, 10 and 20 mum SiC particles was investigated by making use of split Hopkinson pressure bar (SHPB)
Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. +3 more
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Experimental method for the evaluation of the susceptibility of materials to shear band formation
In order to characterize materials with respect to their susceptibility to shear band formation at high strain rates, a modified Hopkinson pressure bar apparatus and hat-shaped steel specimens with a shear zone having a width significantly larger than ...
Tham R.
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Catastrophic shear instability is the dominant mechanism during orthogonal cutting of Ti6Al4V. Chip segmentation even at low speeds testifies to the emergence of some kind of instability during plastic deformation of the material.
Orestis Friderikos +3 more
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The current review work studies the adiabatic shear banding (ASB) mechanism in metals and alloys, focusing on its microstructural characteristics, dominant evolution mechanisms and final fracture.
Konstantina D. Karantza +1 more
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Modeling periodic adiabatic shear band evolution during high speed machining Ti-6Al-4V alloy [PDF]
Cutting experiments were performed on Ti-6Al-4V alloy over a wide range of cutting speeds. The transition of chip morphology from continuous to serrated is observed with increasing the cutting speeds, which is found to be ascribed to a periodic shear ...
仝兴华 +5 more
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The dynamic compression experiments with Split-Hopkinson Pressure Bar(SHPB) were performed on AZ31 magnesium alloy rolled sheet specimens in the normal direction (AZ31-ND) with {0002} texture at the temperature of 293–523 K and the strain rate of 0.001 ...
Feng Zhang +7 more
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Suppression of repeated adiabatic shear banding by dynamic large strain extrusion machining [PDF]
High speed machining (HSM) is an advanced production technology with great future potential. Chip serration or segmentation is a commonly observed phenomenon during high speed machining of metals, which is found to be ascribed to a repeated shear band ...
Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. +2 more
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