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