Results 81 to 90 of about 1,342 (207)
Characterization of thermo-mechanical behavior and adiabatic shear band formation in a press- hardened 22MnB5 steel at different strain rates [PDF]
Adiabatic Shear Band formation is observed in high-speed shear deformation of metallic materials, particularly in technologically relevant processes. It is characterized by the formation of increasingly localized areas of high shear strains.
Wagner, M. F.-X. +2 more
core +1 more source
A new perspective on adiabatic shear failure [PDF]
, 2009 Adiabatic shear failure is commonly considered to be induced by thermal softening, for which a critical strain describes the onset of failure. This paper revisits this concept on the basis of experimental evidence showing that the homogeneous temperature
D. Rittel
core +1 more source
Gradient structure produces superior dynamic shear properties
Materials Research Letters, 2017 We report that gradient-structured twinning-induced plasticity steels have much superior dynamic shear properties over homogeneous nanostructured (NS) counterparts.
Xiangde Bian +3 more
doaj +1 more source
Some experiments on adiabatic shear failure [PDF]
, 2006 Dynamic testing of statically pre-deformed specimens of Ti6Al4V shows that the total strain to failure increases with the level of pre-strain. Furthermore, interrupted and various other dynamic tests on Ti6AL4V show that the temperature rise prior to ...
M. Merzer, D. Rittel, Z.G. Wang
core +1 more source
Numerical simulation of systems of shear bands in ductile metal with inclusions
AIP Advances, 2016 We develop a method for numerical simulations of high strain-rate loading of mesoscale samples of ductile metal with inclusions. Because of its small-scale inhomogeneity, the composite material is prone to localized shear deformation (adiabatic shear ...
JeeYeon N. Plohr, Bradley J. Plohr
doaj +1 more source
npj Computational MaterialsThe photogenerated carrier lifetime critically determines photocatalytic efficiency, with electron-hole (e-h) recombination being the key bottleneck.
Jin-Hao Xu +3 more
doaj +1 more source
Research on Adiabatic Shear during Serrated Chip Formation of High Speed Turning of Hardened Steel [PDF]
, 2010 The development of chip morphology, critical cutting condition of adiabatic shear during serrated chip formation and cutting forces were observed and measured by high speed turning experiment for 30CrNi3MoV hardened steel.
Hai Yang Yu +4 more
core +1 more source
Analysis of Adiabatic Shear Band Formation by an Explicit Elasto-Plastic Finite Element Method [PDF]
, 1999 This paper is concerned with the shear band formation in sheet metal under dynamic loading. The shear band propagation is analyzed by an explicit elasto-plastic finite element code, which adopts the Johnson-Cook model to consider the effect of strain ...
조상순, 강우종, 허훈
core
Journal of Materials Research and TechnologyIn this work, we employ a Split Hopkinson Pressure Bar (SHPB) to investigate the microstructural evolution and formation mechanism of internal adiabatic shear bands (ASBs) in a 2000 MPa grade ultrahigh strength martensitic steel at high strain rates ...
Ruizhe Jin +5 more
doaj +1 more source
Journal of Materials Research and TechnologyThe effect of adiabatic shear on the deformation mechanism of extruded 7003 aluminum alloy matrixes during high-speed impact is investigated using a split Hopkinson pressure bar.
Rui Xing +6 more
doaj +1 more source