Results 11 to 20 of about 329,998 (301)

Strain energy density evaluation with free coarse mesh model [PDF]

open access: yesMaterial Design & Processing Communications, 2019
This work investigates the error in estimating the strain energy density value through a free coarse mesh model in a finite element analysis. Several numerical simulations were carried out to acquire this value both according to the conventional methodology of the strain energy density method and according to the procedure shown in the present work ...
Pietro Foti, Filippo Berto
openaire   +3 more sources

On the strain-energy density in linear elasticity [PDF]

open access: yesJournal of Engineering Mathematics, 1973
SUMMARY Standard results from matrix theory are used to derive optimal upper and lower bounds for the strain-energy density in terms of the norm of the stress tensor in two and three dimensions. The approach also yields directly necessary and sufficient conditions for positive-definiteness.
Horgan, Cornelius O.
openaire   +3 more sources

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   +3 more sources

Strain Energy Density as Failure Criterion for Quasi-Static Uni-axial Tensile Loading

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

Indices to Determine the Reliability of Rocks under Fatigue Load Based on Strain Energy Method

open access: yesApplied Sciences, 2019
Rock is a complicated material which includes randomly distributed grains and cracks. The reliability of rocks under fatigue load is very important during the construction and operation of rock engineering.
Huanran Fu   +3 more
doaj   +1 more source

Mechanical properties of pre-strained austenitic stainless steel from the view of energy density

open access: yesResults in Physics, 2018
The effect of pre-strain on mechanical properties was investigated for 316L austenitic stainless steel over pre-strain value ranging from 0% to 35%. The effect of pre-strain on energy density of tensile curve was focused, and pre-strain enhances elastic ...
Jian Peng   +3 more
doaj   +1 more source

A Modified Bursting Energy Index for Evaluating Coal Burst Proneness and Its Application in Ordos Coalfield, China

open access: yesEnergies, 2020
Coal burst is a type of dynamic geological hazard in coal mine. In this study, a modified bursting energy index, which is defined as the ratio of elastic strain energy at the peak strength to the released strain energy density at the post-peak stage, was
Xuewei Liu   +3 more
doaj   +1 more source

Effect of Joint Density on Rockburst Proneness of the Elastic-Brittle-Plastic Rock Mass

open access: yesShock and Vibration, 2021
The prediction of rockburst proneness is the basis of preventing and controlling rockburst disasters in rock engineering. Based on energy theory and damage mechanics, the quantitative functional relationship between joint density and energy density was ...
Jiliang Pan, Fenhua Ren, Meifeng Cai
doaj   +1 more source

Mechanical responses and energy characteristics of the Jinping marble under the dynamic impact

open access: yesShuiwen dizhi gongcheng dizhi, 2022
To study the dynamic responses and energy characteristics of the marble from the Jinping hydropower station, the dynamic compression tests on the rock samples are carried out using the split-Hopkinson pressure bar, and the fractal dimension of the ...
Ao LI   +6 more
doaj   +1 more source

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

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