Error Analysis of Determination of Elastic Constants from Resonant Vibrations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00214024" target="_blank" >RIV/68407700:21110/13:00214024 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Error Analysis of Determination of Elastic Constants from Resonant Vibrations

Popis výsledku v původním jazyce

The error analysis was performed for the determination of elastic constants (Young?s modulus, shear modulus, and Poisson?s ratio) using only the maximum admissible errors (MAE) of the used digital measurers. This analysis is relatively simple and gives the first impression of the accuracy of the determined quantities. A resonant method was used for the determination of the elastic moduli. Young?s modulus EL was determined from the resonant frequency fL of the longitudinal vibration and EF was determinedfrom the resonant frequency fL of the flexural vibration. A shear modulus G was determined from the resonant frequency fT of the torsional vibration. The maximum relative errors (MRE) of G, EL and EF are 0.2%, 0.2% and 0.5% respectively. Poisson?s ratiowas calculated a) using G and EL ; the MRE = 2.5%; b) using G and EF; the MRE = 4.9%; c) using fT and fL ; the MRE = 0.17% and d) using fT and fF ; the MRE = 0.27%.

Název v anglickém jazyce

Error Analysis of Determination of Elastic Constants from Resonant Vibrations

Popis výsledku anglicky

The error analysis was performed for the determination of elastic constants (Young?s modulus, shear modulus, and Poisson?s ratio) using only the maximum admissible errors (MAE) of the used digital measurers. This analysis is relatively simple and gives the first impression of the accuracy of the determined quantities. A resonant method was used for the determination of the elastic moduli. Young?s modulus EL was determined from the resonant frequency fL of the longitudinal vibration and EF was determinedfrom the resonant frequency fL of the flexural vibration. A shear modulus G was determined from the resonant frequency fT of the torsional vibration. The maximum relative errors (MRE) of G, EL and EF are 0.2%, 0.2% and 0.5% respectively. Poisson?s ratiowas calculated a) using G and EL ; the MRE = 2.5%; b) using G and EF; the MRE = 4.9%; c) using fT and fL ; the MRE = 0.17% and d) using fT and fF ; the MRE = 0.27%.

Druh

C - Kapitola v odborné knize

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

New Trends of Acoustic Spectrum

ISBN

978-80-228-2531-3

Počet stran výsledku

6

Strana od-do

157-162

Počet stran knihy

178

Název nakladatele

Technická univerzita vo Zvolene

Místo vydání

Zvolen

Kód UT WoS kapitoly

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