Results 21 to 30 of about 580,035 (347)

Dynamic characteristics of enhanced Al/PTFE and real-time quantitative evaluation of impact release energy under vacuum environment

open access: yesResults in Physics, 2021
Aluminum/Polytetrafluoroethylene (Al/PTFE) reactive material occurs chemical reaction and release a large amount of energy under the impact load, which has the dual characteristics of strength and energy release, so it can be applied to the attack of ...
Enling Tang   +8 more
doaj   +1 more source

Analysis of Two Lengthwise Cracks in a Viscoelastic Inhomogeneous Beam Structure

open access: yesEngineering Transactions, 2020
The present paper considers the time-dependent fracture in a continuously inhomogeneous viscoelastic cantilever beam with two lengthwise cracks.
Victor Iliev RIZOV
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

Delamination Fracture Analyses of Linear-Elastic Functionally Graded Beams

open access: yesEngineering Transactions, 2017
An analytical approach for investigation of delamination cracks in three-dimensional functionally graded linear-elastic beams was developed. Beams which are functionally graded along their width, height and length were analyzed.
Victor Iliev RIZOV
doaj   +1 more source

The Effect of Delamination Between Layers in U-shaped Members Made of Functionally Graded Multilayered Viscoelastic Materials [PDF]

open access: yesJournal of Applied and Computational Mechanics
This theoretical work deals with delamination in U-shaped load-carrying structural members. The latter represent multilayered functionally graded systems of non-linear viscoelastic behaviour.
Victor Rizov
doaj   +1 more source

Analysis of Energy Evolution Characteristics of Salt Rock Under Different Loading Rates

open access: yesFrontiers in Earth Science, 2022
The existing uniaxial compression test results of salt rock under different loading rates are used to study its energy evolution characteristics during deformation and failure in this study. First of all, the influence of loading rate on the total energy
J. B. Wang   +7 more
doaj   +1 more source

Mechanical properties and impact energy release characteristics of Al0.5NbZrTi1.5Ta0.8Ce0.85 high-entropy alloy

open access: yesMaterials Research Express, 2022
To explore the potential of high-entropy alloys (HEAs) as energetic structural materials (ESMs), Al _0.5 NbZrTi _1.5 Ta _0.8 Ce _0.85 high-entropy alloys were prepared by vacuum arc melting. XRD and TEM indicated the coexistence of BCC and FCC structures.
Yusong Ma   +5 more
doaj   +1 more source

Mixed-mode thermo elastic delamination fracture behavior of composite skin stiffener containing interface delamination

open access: yesJournal of Materials Research and Technology, 2019
This paper presents the thermo-elastic effect on materials having anisotropic behavior and stresses developed due to residual temperature on interlaminar delamination fracture characteristics of composite skin stiffener.
Saumya Shah   +3 more
doaj   +1 more source

Lengthwise Crack Study of a Beam with Non-Linear Creep

open access: yesEngineering Transactions
An analytical study of the strain energy release rate for an inhomogeneous beam structure with a lengthwise crack subjected to non-linear creep is developed. The beam is inhomogeneous along its length.
Victor Iliev RIZOV
doaj   +1 more source

Study of the Impact Energy Releasing Characteristics of Al/PTFE/W Energetic Jets

open access: yesShock and Vibration, 2020
Compared with traditional jets, energetic jets have more efficient damage effects. To study the reaction characteristics of polytetrafluoroethylene- (PTFE-) based energetic jets under impact loading, the static mechanical properties of Al/PTFE/W ...
Fuhai Li, Hantao Liu, Yanwen Xiao
doaj   +1 more source

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