File:The elastic properties of concrete under bi-axial loading (1912) (14778477631).jpg

Identifier: elasticpropertie00mill (find matches)
Title: The elastic properties of concrete under bi-axial loading
Year: 1912 (1910s)
Authors: Millard, Floyd Hays
Subjects: Concrete Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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99 of the arm. These averace 0.84. We may cay from these numbersthat the deformation on the cross Is reduced to from 0.87 to0.S4 01 the deformation on the arm as determined from thecurves showins the distribution of deformation. In test piece 2071 the ratio of the unit deformation onthe cross to that on the arm f7hen determined from the stress-deformation relations at the several loads varied from 0.79 to0.S2 and averaged 0.80 for the test. The separate values aregiven for each 200 lb. per sq.in. increment of stress on the ric;hthand margin of the sheet of average curves, Pig. 23. In test piece 2072 the ratio of deformation on the crossto that on the arm vzas 0.88 after the first increment of loadbut, unlike the relation in the other t7;o similar pieces, itrose to 0.98, 1.00, 1.05, 1.16, and 1.38 at stresses of 400,600, 800, 1000 and 1200 lb. per sq.in. Failure occurred at thecenter of the test piece at a much lo?^er stress than the others.This specimen may have been eccentrically loa

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