Results 61 to 70 of about 6,089 (210)

An Experimental Investigation into Wear Resistance of Mg-SiC Nanocomposite Produced at High Rate of Compaction [PDF]

open access: yesJournal of Stress Analysis, 2018
The Mg-SiC nanocomposite specimens were produced at low strain rate of 8×10−3s−1 using a universal INSTRON testing machine, strain rate of about 8×102s−1 using a drop hammer and at strain rate of about 1.6×103s−1 employing a Split Hopkinson Pressure Bar (
G.H. Majzoobi, K. Rahmani, A. Atrian
doaj   +1 more source

Applicability of mechanical tests for biomass pellet characterisation for bioenergy applications [PDF]

open access: yes, 2018
In this paper, the applicability of mechanical tests for biomass pellet characterisation was investigated. Pellet durability, quasi-static (low strain rate), and dynamic (high strain rate) mechanical tests were applied to mixed wood, eucalyptus ...
Eastwick, Carol   +5 more
core   +3 more sources

Dynamic response at the terminus of oblique intersecting joints subjected to stress waves

open access: yesDeep Underground Science and Engineering, EarlyView.
This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu   +4 more
wiley   +1 more source

Dynamic notched semi-circle bend (NSCB) method for measuring fracture properties of rocks: Fundamentals and applications

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Rocks are increasingly used in extreme environments characterised by high loading rates and high confining pressures. Thus the fracture properties of rocks under dynamic loading and confinements are critical in various rock mechanics and rock engineering
Wei Yao, Kaiwen Xia
doaj   +1 more source

Pre-emptive ultrasound-guided superior hypogastric plexus block in pelvic cancer surgeries: a randomized double-blinded study

open access: yesAin Shams Journal of Anesthesiology, 2023
Background Superior hypogastric plexus is a retroperitoneal plexus that receives visceral sensation from pelvic viscera. Superior hypogastric plexus block (SHPB) was used for chronic pelvic pain and recently studied for postoperative pain.
Essam Mahran, Mohamed A. Wadod
doaj   +1 more source

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

open access: yesEnergy Science &Engineering, EarlyView.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang   +7 more
wiley   +1 more source

High strain rate compression testing of glass fibre reinforced polypropylene

open access: yesEPJ Web of Conferences, 2012
This paper details an investigation of the high strain rate compression testing of GFPP with the Split Hopkinson Pressure Bar (SHPB) in the through-thickness and in-plane directions.
Cloete T.J.   +3 more
doaj   +1 more source

Environmental correlates of health-promoting leisure physical activity in persons with multiple sclerosis using a social cognitive perspective embedded within social ecological model

open access: yesPreventive Medicine Reports, 2019
There is abundant evidence for the benefits of physical activity (PA) among persons with multiple sclerosis, however only 20% of persons with MS engage in sufficient PA.
Stephanie L. Silveira, Robert W. Motl
doaj   +1 more source

Development of a Hopkinson bar apparatus for testing soft materials: application to a closed-cell aluminum foam [PDF]

open access: yes, 2016
An increasing interest in lightweight metallic foams for automotive, aerospace and other applications has been observed in recent years. This is mainly due to the weight reduction that can be achieved using foams and for their mechanical energy ...
BABCSAN Norbert   +2 more
core   +1 more source

On the Damage Tolerance of Diffusion Bonded Titanium–Aluminum Phase Biomimetic Composites

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The biomimetic design principles of natural structures involve the strategic integration of stiff and compliant phases to synergistically enhance strength and toughness. Its evolutionary refined natural armor, characterized by a specialized microarchitecture, enables superior damage tolerance.
Shuai Tong   +10 more
wiley   +1 more source

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