CM Lab 5 - CVE 474 Construction Materials Concrete Lab...

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CVE 474 Construction Materials/ Concrete Lab Experiment #5: Mechanical Properties of Steel 5/10/2011 Group #3 Jeff Gable Jonathan Brate Matt Vanhouten Tyler Book Danny Luehrmann Abstract:
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This report describes the two part procedure that was performed to become familiar with the mechanical properties of steel. A tensile test and toughness test was run on a steel specimen according to ASTM standards from ASTM E8-04, A370-2, E23-02, to ASTM A673-01. The procedure for the tensile test included taking the dimensions of the steel specimen, and observing the load applied to find apparent yield, apparent ultimate, and stresses on the specimen. The toughness test involved the amount of energy needed for the Charpy hammer to break through the Charpy specimens at different temperatures. Significant results were found from the tensile test showing stresses of 61.19ksi for the yield and 70.15ksi for the ultimate with an elongation of 28.5% and30.6% for the front and back of the specimen. Table of Contents
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I. Introduction of Experiment 5: Mechanical Properties of Steel…………………………………………………………… …………………. .Pg. 4 II. Results 1. Part A………………………………………………………………… ……………Pg. 5 2. Part B………………………………………………………………… ……………Pg. 6 3. Part C………………………………………………………………… ……………Pg. 11 III. Discussion and Conclusions…………………………………………….Pg. 12 IV. References………………………………………………………… ……………Pg. 13 V. Appendix A………………………………………………………………… …..Pg. 14
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Introductory Remarks: Part I: Tensile Testing of Steel Part I was done according to ASTM E8-04 and ASTM A370-02 standards. First, the dimensions of a steel specimen were measured to find the average cross sectional area. Following, indentations were made and distance between measured using a caliper on the front and back of the specimen to be used for elongation percentage. Then, the steel specimen was placed in the test machine to begin loading, measuring load, strain, and displacement. Finally, the graph showing load vs. strain was observed while the specimen was being loaded to find the apparent yield; load applied when the graph starts off the straight line. Following, the load for apparent
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CM Lab 5 - CVE 474 Construction Materials Concrete Lab...

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