Compression Testing of Springs
in the Materials Testing Laboratory at the University of Missouri-Rolla
Photos by Jeff Thomas, November 23, 1999.

Load-Deflection Plot for All Three Springs

Spring 1

Diameter = 0.45"
Outside Coil Diameter = 4.3125"
Free Length = 15.125"
Spring Constant = 105 lbs/in

Load-Deflection Plot
Data Set

Click on image to enlarge.

Spring 2

Diameter = 0.65"
Outside Coil Diameter = 3.1875"
Free Length = 9.125"
Spring Constant = 1650 lbs/in

Load-Deflection Plot
Data Set

Spring 3

Diameter = 1.2"
Outside Coil Diameter = 5.25"
Free Length = 8.1875"
Spring Constant = 9500 lbs/in

Load-Deflection Plot
Data Set

Common Parameters

Deflection Rate = 2 in/min
Temperature = 72 F
Humidity = 43%