Detail publikace
A New Method of how to Determine Elastic Constants in Tension and Compression by Four-Point Bending
JANÍČEK, P.
Anglický název
A New Method of how to Determine Elastic Constants in Tension and Compression by Four-Point Bending
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
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 of characteristics 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 from the 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 of the 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.
Anglický abstrakt
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 of characteristics 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 from the 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 of the 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.
Klíčová slova anglicky
material characteristics identification, moduli of elasticity in tension and in compression, four-point bending
Rok RIV
2003
Vydáno
01.01.2003
ISSN
1210-2717
Časopis
Inženýrská mechanika - Engineering Mechanics
Ročník
10
Číslo
1
Počet stran
11
BIBTEX
@article{BUT41881,
author="Přemysl {Janíček},
title="A New Method of how to Determine Elastic Constants in Tension and Compression by Four-Point Bending",
journal="Inženýrská mechanika - Engineering Mechanics",
year="2003",
volume="10",
number="1",
month="January",
issn="1210-2717"
}