Results 11 to 20 of about 776 (192)
The genesis of adiabatic shear bands. [PDF]
AbstractAdiabatic shear banding (ASB) is a unique dynamic failure mechanism that results in an unpredicted catastrophic failure due to a concentrated shear deformation mode. It is universally considered as a material or structural instability and as such, ASB is hardly controllable or predictable to some extent.
Landau P +4 more
europepmc +3 more sources
On the persistence of adiabatic shear bands [PDF]
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 +2 more sources
Adiabatic shearing and performances of milling 304 stainless steel based on cooling strategies of flood, LN2 and LN2+LCO2 [PDF]
During high-speed milling, stainless steel is prone to generating adiabatic shear bands in the cutting zone, which affects the cutting quality. The main factors causing adiabatic shear are high temperature and elastoplastic instability.
Yin Mao, Yunxian Cui
doaj +2 more sources
Numerical Simulation of Adiabatic Shear Bands Formation in Composites
The process of plastic flow localization under shear deformations of a composite material consisting from welded steel and copper is studied. A mathematical model describing this physical process is proposed.
N. A. Kudryashov +2 more
doaj +3 more sources
Structural mechanisms of formation of adiabatic shear bands [PDF]
The paper focuses on the experimental and theoretical study of plastic deformation instability and localization in materials subjected to dynamic loading and high-velocity perforation.
Mikhail Sokovikov +6 more
doaj +3 more sources
Mechanical behavior and microstructure evolution during high strain rate deformation of AA7075-T651
The current study presents the effects of strain and temperature on the mechanical response and microstructure evolution in AA7075-T651 at high strain rates.
Biswajit Dalai +4 more
doaj +1 more source
Width of adiabatic shear bands [PDF]
AbstractAn equation for the half-width of an adiabatic shear band is derived. With reference to the equation, the importance of thermal conductivity, temperature, and viscosity in determining the bandwidth are illustrated. It is shown that calculations of shear band width are fairly close approximations to those obtained experimentally.
B. Dodd, Y. Bai
openaire +1 more source
Propagation of Adiabatic Shear Bands [PDF]
The dynamic propagation of a shear band is assessed in mode II. A layer of finite thickness is subjected to siinple shearing. The band propagates in the shear direction under steady state conditions. A variational approach is developed to calculate the shear band velocity and the length of the process zone.
Mercier, S., Molinari, A.
openaire +1 more source
A Brazilian high hardness armor (HHA) steel was, for the first time dynamically tested and microstructurally analyzed for the occurrence of shear bands.
Suzane de Sant’ Ana Oliveira +5 more
doaj +1 more source
Adiabatic Shear Banding in Nickel and Nickel-Based Superalloys: A Review
This review paper discusses the formation and propagation of adiabatic shear bands in nickel-based superalloys. The formation of adiabatic shear bands (ASBs) is a unique dynamic phenomenon that typically precedes catastrophic, unpredicted failure in many
Russell A. Rowe +3 more
doaj +1 more source

