A New Method of how to Determine Elastic Constants in Tension and Compression by Four-Point Bending

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F03%3APU41525" target="_blank" >RIV/00216305:26210/03:PU41525 - 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

A New Method of how to Determine Elastic Constants in Tension and Compression by Four-Point Bending

Popis výsledku v původním jazyce

The paper describes deductions of analytical formulas for an experimental method based on four-point bending. This would enable us to determine constitutive material characteristics for a concrete material in tension and in compression. Determination ofcharacteristics is an identification problem with experimentally measured values of extreme tensile and compressive strains used as inputs in the solution algorithm of the inverse problem. This algorithm enables us to determine moduli of elasticity fromthe measured strains, assuming that the data on beam geometry and load are known. Accordingly, the core of the problem is an identification of material characteristics. For the direct problem, the formulas evaluating strains, stresses, and deflections ofthe beam (made of a material with different moduli of elasticity in tension and in compression) are derived in this paper. Finally, the results of the direct problem are used to deduce the formulas determining moduli of elasticity.

Název v anglickém jazyce

A New Method of how to Determine Elastic Constants in Tension and Compression by Four-Point Bending

Popis výsledku anglicky

The paper describes deductions of analytical formulas for an experimental method based on four-point bending. This would enable us to determine constitutive material characteristics for a concrete material in tension and in compression. Determination ofcharacteristics is an identification problem with experimentally measured values of extreme tensile and compressive strains used as inputs in the solution algorithm of the inverse problem. This algorithm enables us to determine moduli of elasticity fromthe measured strains, assuming that the data on beam geometry and load are known. Accordingly, the core of the problem is an identification of material characteristics. For the direct problem, the formulas evaluating strains, stresses, and deflections ofthe beam (made of a material with different moduli of elasticity in tension and in compression) are derived in this paper. Finally, the results of the direct problem are used to deduce the formulas determining moduli of elasticity.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Inženýrská mechanika - Engineering Mechanics

ISSN

1210-2717

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

69-79

Kód UT WoS článku

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EID výsledku v databázi Scopus

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