Results 21 to 30 of about 840,861 (292)

IMPACT TESTING OF ORDNANCE GELATINE UNDER MODERATE STRAIN RATE CONDITIONS

open access: yesActa Polytechnica CTU Proceedings, 2018
An experimental study on energy absorption capabilities and strain rate sensitivity of ordnance gelatine was performed. Strain energy density under quasi static compression and moderate strain rate impact tests was compared.
Tomáš Doktor   +4 more
doaj   +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

Registration of brain tumor images using hyper-elastic regularization [PDF]

open access: yes, 2012
In this paper, we present a method to estimate a deformation field between two instances of a brain volume having tumor. The novelties include the assessment of the disease progress by observing the healthy tissue deformation and usage of the Neo ...
Hamamci, Andac   +3 more
core   +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

Strain-induced energy band gap opening in two-dimensional bilayered silicon film

open access: yes, 2015
This work presents a theoretical study of the structural and electronic properties of bilayered silicon films under in-plane biaxial strain/stress using density functional theory.
Ji, Zhonghang   +3 more
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

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

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