Role of Coastal Marshes in Energy Dissipation and Shore Protection

The wear resistance and wear characteristics of cluster-gradient architecture (CGA) nanostructured topocomposites are studied. The specifics of tribocontact interaction under microcutting conditions is considered. The reasons for retention of high wear resistance of this class of nanostructured topocomposites are studied. The mechanisms of energy dissipation from the tribocontact zone, due to the nanogeometry and the structural-phase structure of CGA topocomposites are analyzed. The role of triboactivated deformation and diffusion processes in providing increased wear resistance of carbide-based topocomposites is shown. They are tested under the conditions of blade processing of heat-resistant titanium alloy.

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Interactions between transplants of Phragmites australis and Juncus acutus in Mediterranean coastal marshes: The modulating role of environmental gradients

Aquatic Botany ◽

10.1016/j.aquabot.2015.03.003 ◽

2015 ◽

Vol 124 ◽

pp. 29-38 ◽

Cited By ~ 6

Author(s):

Efrem Batriu ◽

Josep M. Ninot ◽

Joan Pino

Keyword(s):

Phragmites Australis ◽

Environmental Gradients ◽

Coastal Marshes ◽

Juncus Acutus

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Internal Energy Dissipation in Enceladus's Subsurface Ocean From Tides and Libration and the Role of Inertial Waves

Journal of Geophysical Research Planets ◽

10.1029/2019je005988 ◽

2019 ◽

Vol 124 (8) ◽

pp. 2198-2212 ◽

Cited By ~ 5

Author(s):

J. Rekier ◽

A. Trinh ◽

S. A. Triana ◽

V. Dehant

Keyword(s):

Energy Dissipation ◽

Internal Energy ◽

Inertial Waves ◽

Subsurface Ocean

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THE EFFECT OF NONLINEAR DAMPING ON THE UNIVERSAL ESCAPE OSCILLATOR

International Journal of Bifurcation and Chaos ◽

10.1142/s0218127499000523 ◽

1999 ◽

Vol 09 (04) ◽

pp. 735-744 ◽

Cited By ~ 37

Author(s):

MIGUEL A. F. SANJUÁN

Keyword(s):

Energy Dissipation ◽

Period Doubling ◽

Nonlinear Damping ◽

Basins Of Attraction ◽

Period Doubling Bifurcation ◽

Damping Coefficient ◽

Nonlinear Dissipation ◽

Fractal Basin Boundaries ◽

Basin Boundaries

This paper analyzes the role of nonlinear dissipation on the universal escape oscillator. Nonlinear damping terms proportional to the power of the velocity are assumed and an investigation on its effects on the dynamics of the oscillator, such as the threshold of period-doubling bifurcation, fractal basin boundaries and how the basins of attraction are destroyed, is carried out. The results suggest that increasing the power of the nonlinear damping, has similar effects as of decreasing the damping coefficient for a linearly damped case, showing the very importance of the level or amount of energy dissipation.

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Dynamic Crushing Analysis of a Three-Dimensional Re-Entrant Auxetic Cellular Structure

Materials ◽

10.3390/ma12030460 ◽

2019 ◽

Vol 12 (3) ◽

pp. 460 ◽

Cited By ~ 4

Author(s):

Tao Wang ◽

Zhen Li ◽

Liangmo Wang ◽

Zhengdong Ma ◽

Gregory Hulbert

Keyword(s):

Energy Dissipation ◽

Relative Density ◽

Cellular Structure ◽

Three Dimensional ◽

Analytical Formula ◽

Absorption Capacity ◽

Plastic Energy ◽

Theoretical Predictions ◽

Auxetic Structure

Dynamic behaviors of the three-dimensional re-entrant auxetic cellular structure have been investigated by performing beam-based crushing simulation. Detailed deformation process subjected to various crushing velocities has been described, where three specific crushing modes have been identified with respect to the crushing velocity and the relative density. The crushing strength of the 3D re-entrant auxetic structure reveals to increase with increasing crushing velocity and relative density. Moreover, an analytical formula of dynamic plateau stress has been deduced, which has been validated to present theoretical predictions agreeing well with simulation results. By establishing an analytical model, the role of relative density on the energy absorption capacity of the 3D re-entrant auxetic structure has been further studied. The results indicate that the specific plastic energy dissipation is increased by increasing the relative density, while the normalized plastic energy dissipation has an opposite sensitivity to the relative density when the crushing velocity exceeds the critical transition velocity. The study in this work can provide insights into the dynamic property of the 3D re-entrant auxetic structure and provides an extensive reference for the crushing resistance design of the auxetic structure.

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