Results 21 to 30 of about 8,865,343 (255)

Experimental characterisation of macro fibre composites and monolithic piezoelectric transducers for strain energy harvesting [PDF]

open access: yes, 2012
Compact and lightweight energy harvesters are needed to power wireless sensor nodes (WSNs). WSNs can provide health monitoring of aircraft structures, improving safety and reducing costs by enabling predictive maintenance.
Michele Pozzi   +7 more
core   +1 more source

Deformation and damage properties of rock-like materials subjected to multi-level loading-unloading cycles

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
In the process of engineering construction such as tunnels and slopes, rock mass is frequently subjected to multiple levels of loading and unloading, while previous research ignores the impact of unloading rate on the stability of rock mass.
Zhizhen Liu   +4 more
doaj   +1 more source

Simulation of the Effect of Flexible and Rigid Plate Designs on Murine Fracture Healing

open access: yesJournal of Biomechanical Science and Engineering, 2011
Although several histological studies in mice have examined healing of fractures secured with bone plates, no data are available at present on the mechanical response of fractured bone or callus tissue.
Rina SAKAI   +9 more
doaj   +1 more source

Strain energy density criterion as failure assessment for quasi-static uni-axial tensile load

open access: yesFracture and Structural Integrity, 2021
Strain energy density is successfully used as criterion for failure assessment of brittle and quasi-brittle material behavior. This work investigates the possibility to use this method to predict the strength of V-notched specimens made of PMMA under ...
Andrea Kusch   +3 more
doaj   +1 more source

Harvesting energy from the dynamic deformation of an aircraft wing under gust loading [PDF]

open access: yes, 2012
Weight reduction and maintenance simplification are high in the agenda of companies and researchers active in the aerospace sector. Energy harvesters are being investigated because they enable the installation of wireless sensor nodes, providing ...
Michele Pozzi   +5 more
core   +1 more source

Research on Energy Dissipation Laws of Coal Crushing under the Impact Loads

open access: yesShock and Vibration, 2021
Dynamic crushing characteristics of coals are closely related with energy absorption and release of coals under certain strain rate. Hence, it is necessary to investigate energy dissipation laws of coal crushing under the impact loads with different ...
Dengke Xu   +3 more
doaj   +1 more source

Photocatalytic Activity and Nano Structural Investigation on Co3O4 Nanoparticles [PDF]

open access: yesNanochemistry Research, 2020
In this study, Co3O4 nanostructure is synthesized from the Co(NO3)2.6H2O reactant through  co-precipitation technique, and then is calcined at different calcination temperatures (CTs).The XRD peak broadening and its corresponding properties, such as ...
Mehran Riazian
doaj   +1 more source

Ductile crack propagation with the strain-energy density criterion

open access: yes, 1985
The strain energy density criterion is used to characterize subcritical crack growth in a thin aluminum alloy sheet undergoing general yielding. A finite element analysis which incorporates both material and geometrical nonlinear behaviors of the cracked
Chow CL, Xu JL(徐纪林)
core   +1 more source

Strain energy-and stress-based approaches revisited in notch fatigue of ductile steels

open access: yesMATEC Web of Conferences, 2018
The constant amplitude, zero-mean stress, axial-fatigue behaviour of plain and bluntly notched AISI 304 L stainless steel specimens is investigated in terms of strain energy density.
Atzori Bruno   +2 more
doaj   +1 more source

Buckling of Steel Portal Frames Considering Material Non-Linearity

open access: yesDiyala Journal of Engineering Sciences, 2015
In this research, an experimental study was carried out to investigate the failure modes of eight frames with IPE cross-sections. The study was conducted by subjecting these frames to two equal concentrated loads (applied directly on columns); however ...
Orabi Al Rawi   +2 more
doaj   +1 more source

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