Results 51 to 60 of about 6,089 (210)
Flow and fracture behaviour of FV535 steel at different triaxialities, strain rates and temperatures [PDF]
, 2012 The new generation jet engines operate at highly demanding working conditions. Such conditions need very precise design which implies an exhaustive study of the engine materials and behaviour in their extreme working conditions.
Cendón Franco, David Ángel +3 more
core +2 more sources
Estimating Measurement Uncertainty on Stress-Strain Curves from SHPB [PDF]
Experimental Mechanics, 2017 Split Hopkinson Pressure Bar tests are commonly used to determine material stress-strain relationship at high deformation rates. Obtaining this relationship is dependant both on certain assumptions and substantial post-processing of the data recorded during the test. Measurement uncertainty rarely appears on the resulting curves.
Brizard, Denis +2 more
openaire +2 more sources
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
矿业科学学报To investigate the actual dynamic fracture process and energy dissipation mechanisms of coal under triaxial loading conditions, a visual experimental study was conducted using a self-developed multi-field coupled Split Hopkinson Pressure Bar (SHPB ...
WANG Kai +3 more
doaj +1 more source
Temporal characterization of rock dynamic destruction [PDF]
, 2019 Dynamic strength tests published in literature have been analysed by structuraltemporal damage criteria. Parameter τ - incubation time - describing material stability behaviour under high-rate influences have been estimated for Kimachi sandstone, Inada ...
Martemyanov, A. N., Petrov, Yu V.
core
Impact testing of polymeric foam using Hopkinson bars and digital image analysis [PDF]
, 2014 International audienceThis paper has investigated the impact testing method on the polymeric foams using digital image correlation. Accurate average stress-strain relations can be obtained when soft large diameter polymeric pressure bars and appropriate ...
Liu, Jiagui +3 more
core +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
Dynamic behavior and microstructural properties of cancellous bone
, 2009 The aim of the presented study is to identify some properties of the dynamic behavior of the cancellous bone and to identify the link between this mechanical behavior and the microstructural properties.
Bousson, Valérie +3 more
core +2 more sources
Dynamic tests on a cohesive and frictional material. Influence of high pressure and high strain rate on compaction and shear. [PDF]
, 2009 International audienceMany of aggregate composites are made of small size particles mixed with a highly compliant rubbery polymer. When the loading leads to high pressures, the behaviour gets closer to this of cohesive, frictional, and compactable ...
Bailly, Patrice +3 more
core +3 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