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A new criterion of coal burst proneness based on the residual elastic energy index

open access: yesInternational Journal of Mining Science and Technology, 2021
To evaluate the coal burst proneness more precisely, a new energy criterion namely the residual elastic energy index was proposed. This study begins by performing the single-cyclic loading-unloading uniaxial compression tests with five pre-peak unloading
Fengqiang Gong   +4 more
doaj   +4 more sources

Large recoverable elastic energy in chiral metamaterials via twist buckling. [PDF]

open access: yesNature
Mechanical metamaterials with high recoverable elastic energy density, which we refer to as high-enthalpy elastic metamaterials, can offer many enhanced properties, including efficient mechanical energy storage1,2, load-bearing capability, impact ...
Fang X   +6 more
europepmc   +2 more sources

Light-steerable locomotion using zero-elastic-energy modes. [PDF]

open access: yesNat Mater
Driving synthetic materials out of equilibrium via dissipative mechanisms paves the way towards autonomous, self-sustained robotic motions. However, obtaining agile movement in diverse environments with dynamic steerability remains a challenge.
Deng Z, Li K, Priimagi A, Zeng H.
europepmc   +2 more sources

Variation of Elastic Energy Shows Reliable Signal of Upcoming Catastrophic Failure [PDF]

open access: yesFrontiers in Physics, 2019
We consider the Equal-Load-Sharing Fiber Bundle Model as a model for composite materials under stress and derive elastic energy and damage energy as a function of strain.
Srutarshi Pradhan   +2 more
doaj   +2 more sources

Indirect actuation reduces flight power requirements in Manduca sexta via elastic energy exchange. [PDF]

open access: yesJ R Soc Interface, 2019
In the vast majority of flying insects, wing movements are generated indirectly via the deformations of the exoskeleton. Indirect measurements of inertial and aerodynamic power requirements suggest that elastic energy exchange in spring-like structures ...
Gau J, Gravish N, Sponberg S.
europepmc   +2 more sources

Serpentine locomotion through elastic energy release. [PDF]

open access: yesJ R Soc Interface, 2017
A model for serpentine locomotion is derived from a novel perspective based on concepts from configurational mechanics. The motion is realized through the release of the elastic energy of a deformable rod, sliding inside a frictionless channel, which ...
Dal Corso F   +5 more
europepmc   +2 more sources

Solid stress and elastic energy as measures of tumour mechanopathology. [PDF]

open access: yesNat Biomed Eng, 2016
Solid stress and tissue stiffness affect tumour growth, invasion, metastasis and treatment. Unlike stiffness, which can be precisely mapped in tumours, the measurement of solid stresses is challenging.
Nia HT   +18 more
europepmc   +2 more sources

Giant linear strain gradient with extremely low elastic energy in a perovskite nanostructure array. [PDF]

open access: yesNat Commun, 2017
Although elastic strains, particularly inhomogeneous strains, are able to tune, enhance or create novel properties of some nanoscale functional materials, potential devices dominated by inhomogeneous strains have not been achieved so far.
Tang YL, Zhu YL, Liu Y, Wang YJ, Ma XL.
europepmc   +2 more sources

Movement Strategies for Countermovement Jumping are Potentially Influenced by Elastic Energy Stored and Released from Tendons. [PDF]

open access: yesSci Rep, 2018
The preferred movement strategies that humans choose to produce work for movement are not fully understood. Previous studies have demonstrated an important contribution of elastic energy stored within the Achilles tendon (AT) during jumping.
Wade L, Lichtwark G, Farris DJ.
europepmc   +2 more sources

Sport-Specific Capacity to Use Elastic Energy in the Patellar and Achilles Tendons of Elite Athletes. [PDF]

open access: yesFront Physiol, 2017
Introduction: During running and jumping activities, elastic energy is utilized to enhance muscle mechanical output and efficiency. However, training-induced variations in tendon spring-like properties remain under-investigated.
Wiesinger HP   +4 more
europepmc   +2 more sources

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