ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 4

An Analysis of the Design of Beam Testing Apparatus

Ducker, WL
Professor Emerituspresident, Texas Tech UniversitySigma Engineering Co., Inc., LubbockLubbock, TexasTexas

Vallabhan, CVG
Associate professor, Texas Tech University, Lubblock, Texas

McMullin, WS
ManagerMember of ASTM, Lubbock Labs, Lubbock, Texas

Abstract

A critical evaluation of the mechanical design of beam testing apparatus used to determine the flexural strength of concrete by ASTM methods C 78-64(1972) and C 293-68 is presented. Two approaches were used in the evaluation: (1) an experimental deformation of the concrete beam analysis and (2) a stress-deformation analysis of the same by the finite element method. An alternative design of beam testing fixtures is presented by which the tests can be performed more efficiently and accurately.

Keywords:
concretes, flexural strength, design, test equipment, deformation, stresses, finite element method, beam tests

Paper ID: JTE10157J
DOI: 10.1520/JTE10157J
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