! Three 150 mm x 300 mm concrete cylinders with randomly oriented steelfiber contents of 0, 2, and 3% by weight, respectively. After curing for 28 days,the specimens were subjected to increments of compressive loads until fail-ure. The load versus deformation results were as shown in Table P11.14.TABLE P11.14Specimen No.Fiber Content (%)1232Deformation (mm)Load (kN)0.315655655650.61716 (failure)7567920.916417561.224406901.523786411.83351 (failure)605 (failure)Assuming that the gauge length is the whole specimen height, determine thefollowing:a. The compressive stresses and strains for each specimen at each loadincrement.b. Plot stresses versus strains for all specimens on one graph.c. The modulus of elasticity for each specimen.d. The ultimate strength for each specimen.e. The strain at failure for each specimen.f. Toughness. Curves may be approximated with a series of straight lines.g. Comment on the effects of increasing the fiber content on the following:i. Modulus of elasticityii. Ultimate strengthiii. Ductilityiv. Toughness

Area of Specimen, A = π4d2A= π41502 = 17662.5 mm2 1 1 1 2 2 2 3 3 3 Deformation, mm ∆L…

Answered: ! Three 150 mm x 300 mm concrete…

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter11: Fracture And Fatigue

Section: Chapter Questions

Problem 11.4P

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