Publication detail

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

JANÍČEK, P.

Original Title

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

Type

journal article - other

Language

English

Original Abstract

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.

Key words in English

material characteristics identification, moduli of elasticity in tension and in compression, four-point bending

Authors

JANÍČEK, P.

RIV year

2003

Released

1. 1. 2003

ISBN

1210-2717

Periodical

Inženýrská mechanika - Engineering Mechanics

Year of study

10

Number

1

State

Czech Republic

Pages from

69

Pages to

79

Pages count

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",
  pages="11",
  issn="1210-2717"
}