Results 51 to 60 of about 1,342 (207)

Adiabatic shear bands produced in a metallic armor, after dynamic compression with a Hopkinson pressure bar

Journal of Materials Research and Technology, 2022
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, Karollyne Gomes de Castro Monsores, Anderson Oliveira da Silva, Sergio Neves Monteiro, Andersan dos Santos Paula, Ricardo Pondé Weber   +5 more
doaj   +1 more source

The shear mode of multi-layer graphene [PDF]

, 2012
The quest for materials capable of realizing the next generation of electronic and photonic devices continues to fuel research on the electronic, optical and vibrational properties of graphene.
Han, W.P., Tan, P.H, Wang, Y. F., A. C. Ferrari, Marzari, Nicola, Wang, YF, Ferrari, A.C, Bonini, Nicola, Tan, P. H., Wu, Z. H., N. Bonini, W. P. Han, Zhao, W.J, Y. F. Wang, Han, WP, Zhao, WJ, ,, Wu, Z.H., H. Wang, A. Lombardo, Chang, K, Savini, G, Han, W. P., Pugno, Nicola, Pugno, Nicola M., Z. H. Wu, Ferrari, Andrea C., Bonini, N, Tan, P.H., Wang, H., K. Chang, N. Marzari, Pugno, N, Ferrari, AC, Zhao, W.J., Savini, G., Wang, H, Lombardo, A, Ferrari, A. C., Tan, PH, Wu, ZH, P. H. Tan, Wu, Z.H, Zhao, W. J., Pugno, N., Bonini, N., W. J. Zhao, Han, W.P, Wang, Y.F., Chang, W., Marzari, N., Chang, K., Wang, Y.F, G. Savini, Lombardo, A., Marzari, N   +55 more
core   +1 more source

Study on action mechanisms of alloy element for adiabatic shearing sensitivity

AIP Advances, 2019
The effect of specific alloy elements on adiabatic shearing sensitivity was studied by cutting experiment for the industrial pure titanium (TA2) and titanium alloy (Ti-6Al-4V) in the level of valence electron structure (VES).
Wentian Shi, Jinquan Li, Chenyu Wang
doaj   +1 more source

Experimental investigation of adiabatic shear band formation in steels [PDF]

, 2000
Experiments were made to study the process of adiabatic shear banding in various low carbon steels. The shear bands were formed using cylindrical hat-shaped specimens as well as specimens of prismatic shape in a Split-Hopkinson-Pressure-Bar setup.
R. Clos, U. Schreppel, P. Veit
core   +1 more source

Instability Analysis and Rate-Dependent Failure Criteria for Adiabatic Shear Band Propagation of Ti-6Al-4V [PDF]

, 2011
Adiabatic shearing is a typical response of materials under high strain rate loading. Based on the instability analysis for the thermo-viscoplastic constitutive model, a new rate-dependent failure criterion is proposed, where the failure strain decreases
Jian Xin, Ping Xu, Li Ma, Li Ke Wang
core   +1 more source

Microstructural observations on the terminal penetration of long rod projectile

Defence Technology, 2017
Present study focuses on the terminal penetration of tungsten heavy alloy (WHA) long rod penetrator impacted against armour steel at an impact velocity of 1600 m/s.
Krushna Kumbhar, P. Ponguru Senthil, A.K. Gogia   +2 more
doaj   +1 more source

On post-instability processes in adiabatic shear in hot rolled steel [PDF]

, 1991
EXPERIMENTS carried out using a split Hopkinson torsional bar have shown that only one shear band develops in specimens of hot rolled steel which break during testing.
郑哲敏, Huang XL, 白以龙, Xing D
core   +1 more source

Strain dependence of adiabatic shearing behaviors of CoCrFeNi high-entropy alloy fabricated via laser powder bed fusion under impact loads

Journal of Materials Research and Technology
Adiabatic shearing represents a prevalent mode of deformation failure in metals when subjected to impact loading. In this work, dynamic shearing interruption tests considering various shear displacements (i.e., shear strains) were conducted on of the ...
Lijin Dai, Yang Liu, Shengze Yang, Hongyu Chen, Shuxin Li, Yonggang Wang   +5 more
doaj   +1 more source

Metallurgical Analysis of Chip Forming Process when Machining High Strength Bainitic Steels

Journal of Manufacturing and Materials Processing, 2019
In the following work, we propose a metallurgical approach to the chip formation process. We focus on a turning application of high strength steel in which chips are produced by adiabatic shear bands that generate cutting force signals with high ...
Fares Haddad, Christophe Lescalier, Jean-Edouard Desaigues, Anne Bomont-Arzur, Olivier Bomont   +4 more
doaj   +1 more source

Phenomenon of transformed adiabatic shear band surrounded by deformed adiabatic shear band of ductile metal

Transactions of Nonferrous Metals Society of China, 2008
Abstract The coexistent phenomenon of deformed and transformed adiabatic shear bands(ASBs) of ductile metal was analyzed using the JOHNSON-COOK model and gradient-dependent plasticity(GDP). The effects of melting point, density, heat capacity and work to heat conversion factor were investigated.
openaire   +1 more source