Steel Rebar Test

Conducted by:

Christian Chang

Ty Dempsey

5/9/00

Purpose

Find tensile strengthSteel Reinforced BarsSteel Spirals

Plot stress strain curve

Procedure

Prepare 3 Rebars, 2 Spirals

Attach strain gauges

Setup up SATEC testing machine

Perform tensile test

Analyze results

Data

Specimen Diameter Length

A Rebar .5 inch 20.95 inch

B Rebar .5 inch 21 inch

C Rebar .5 inch 21 inch

D Spiral .275 inch 25.25 inch

E Spiral .275 inch 29.625 inch

Results (Graphs)

Spiral Tensile Test Specimen e

010000200003000040000

-2000 0 2000 4000 6000

Strain (microinch)

Load

(lbs

.)

Stress/Strain for Steel Rebar

Results (Graphs)

Stress vs. Strain Specimen e

0

50000

100000

150000

0 2000 4000 6000

Stress (PSI)

Str

ain

(m

icro

inch

)

Stress/Strain for Steel Spiral

Results (Data)

Specimen Average Modulus of Elasticity

A Rebar 13.05 MSI

B Rebar 12.51 MSI

C Rebar 13.56 MSI

D Spiral 46.92 MSI

E Spiral 50.33 MSI

Average Results

Steel Rebars13.04 Mega-pounds per square inch

Steel Spirals48.625 Mega-pounds per square inch

Conclusion

Performed test

Collected data

Analyzed results

Found Young’s Modulus from test