Results 71 to 80 of about 24,236 (228)
Aromatic hyperbranched polyester/RTM6 epoxy resin for EXTREME dynamic loading aeronautical applications [PDF]
, 2020 The effects of the addition of an aromatic hyperbranched polyester (AHBP) on thermal, mechanical, and fracture toughness properties of a thermosetting resin system were investigated.
Borriello, Anna +5 more
core +1 more source
Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures
Deep Underground Science and Engineering, EarlyView.This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao +3 more
wiley +1 more source
A Review of the Torsional Split Hopkinson Bar
Advances in Civil Engineering, 2018 Mechanical behavior of materials at medium and high strain rates (101∼104 s−1) is the foundation of developing mechanical theories, building material models, and promoting engineering design and construction.
Xiao Yu +4 more
doaj +1 more source
PREPROCESSING OF HOPKINSON BAR EXPERIMENT DATA: FILTER ANALYSIS
Acta Polytechnica CTU Proceedings, 2018 This work presents a data preprocessing procedure for signal acquired during high strain-rate loading using a custom Split Hopkinson Pressure Bar (SHPB).
Marcel Adorna +3 more
doaj +1 more source
Experiments with the Hopkinson pressure bar [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1923 In November, 1913, the late Professor Bertram Hopkinson read a paper before the Royal Society entitled “ A method of measuring the Pressure produced in the Detonation of High Explosives or by the Impact of Bullets.” (‘ Phil. Trans.,’ Royal Society of London. Series A, vol. 213 ; and Collected Papers, p.
openaire +1 more source
Stress equilibrium effects within Hopkinson bar specimens [PDF]
Le Journal de Physique IV, 1994 In the compression testing version of the split Hopkinson pressure bar technique a small disc-shaped specimen, sandwiched between two high-strength steel bars, is compressed by a stress pulse. The stress/strain properties of the specimen can be derived from the amount of the stress pulse reflected and transmitted by the specimen, assuming that stress ...
Parry, D. +3 more
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai +7 more
wiley +1 more source
International Journal of Mining Science and Technology, 2021 Precisely understanding the dynamic mechanical properties and failure modes of rocks subjected to true triaxial stress state (σ1 > σ2 > σ3, where σ1, σ2, and σ3 are the major principal stress, intermediate principal stress, and minor principal stress ...
Wei You +4 more
doaj +1 more source
Dynamic characterization of monolithic and composite ceramic materials using Hopkinson bar [PDF]
, 2002 5 pages, 11 figures.[EN] The mechanical behaviour of monolithic and composite ceramic materials was analysed under impact conditions, using the Hopkinson bar to study the response and failure modes.
Barbero Pozuelo, Enrique +3 more
core +2 more sources
Deep Underground Science and Engineering, EarlyView.Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang +4 more
wiley +1 more source