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Instruction Manual
Stress/Strain Apparatus
AP-8214
012-09424B
C
B (×7)
A
Included Equipment Part Number
A. Stress/Strain Apparatus AP-8214
B. Test Coupons, 10 pieces each sample
AP-8217
(sample containers labeled with thickness in inches)
• cold-rolled steel
• annealed steel
• aluminum
• polyethylene terepthalate plastic
• polycarbonate
• brass (thick)
• brass (thin)
D
E
F
G
H
I
C. Storage Box 650-061
D. Attachment for force sensor 003-07916
E. Thumbscrews for Rotary Motion Sensor, 2 pieces 617-031
F. Tee handle 726-049
G. 3/8 inch socket 726-050
H. Calibration bar 648-07650
I. Experiment set-up CD-ROM 013-08999
800-772-8700 www.pasco.com
Stress/Strain Apparatus Introduction
Additional Equipment Required for Use with
ScienceWorkshop
Sensors Part Number
ScienceWorkshop Interface (500, 700, or 750) CI-6400, CI-6450 or similar
DataStudio
1
See PASCO catalog or www.pasco.com
Economy Force Sensor CI-6746
Rotary Motion Sensor CI-6538
Additional Equipment Required for Use with
PASPORT Sensors Part Number
PASPORT Interface
DataStudio
1
2
See PASCO catalog or www.pasco.com
See PASCO catalog or www.pasco.com
Force Sensor PS-2104
Rotary Motion Sensor PS-2120
1
DataStudio 1.8 or later recommended. Visit www.pasco.com to download the latest version. DataStudio Lite, the free version, is
sufficient for use with the included experiment set-up files.
2
Apparatus requires a single multi-port interface such as Xplorer GLX (PS-2002) or PowerLink (PS-2001), or two single-port inter-
faces such as USB Link (PS-2100) or Xplorer (PS-2000).
Introduction
The PASCO AP-8214 Stress/Strain Apparatus illustrates the relationship between
stress and strain for various materials. The apparatus stretches a test coupon (and in
some cases breaks it) while measuring the amount of stretch and force experienced by
the test coupon. Software is used to generate a plot of stress versus strain.
The Stress/Strain Apparatus requires a ScienceWorkshop or PASPORT interface,
DataStudio software, a Rotary Motion Sensor (RMS), and a Force Sensor. Included
with the apparatus are test coupons of various materials and thicknesses, a tee handle
with socket for mounting the test coupons, and a bar for calibrating the apparatus.
This manual includes instructions for calibration and data collection using the
DataStudio set-up files on the CD-ROM.
As an alternative to this manual, the CD-ROM also include a DataStudio workbook designed for
use without the printed instructions. Open Elasticity SW.ds (for ScienceWorkshop) or Elasticity
PS.ds (for PASPORT) and follow the on-screen instructions.
2
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Model No. AP-8214 Equipment Set-up
11
2
34
10
9
1. Rotary Motion Sensor (RMS)
2. Force Sensor
3. Force Sensor attachment
4. setscrew
5. Stress Strain platform
6. 3-step pulley
7. belt
Figure 1: Equipment Set-up
Equipment Set-up
1
6
7
9
8
5
8. groove
9. coupon clamps
10. lever arm
11. thumbscrew
1. Attach the RMS to the apparatus platform.
a. Remove the rod clamp from the RMS.
b. Place the three-step pulley onto the shaft of the RMS with the largest pulley
out. The three-step pulley should be on the “clockwise positive” side of the
RMS as illustrated (Figure 2).
c. Place the RMS on the platform as illustrated (Figure 1). Use the two
thumbscrews to fasten the RMS to the platform from beneath.
d. Seat the belt on the middle step of the three-step pulley and the groove on the
crankshaft.
2. Attach the Force Sensor to the apparatus platform.
a. Remove the hook from the Force Sensor and replace it with the force sensor
attachment.
b. Place the Force Sensor on the apparatus platform by inserting the post
through the support rod mount of the Force Sensor.
c. Insert the long thumbscrew supplied with the Force Sensor through the hole
on the Force Sensor marked “Cart” and screw it into the tapped hole in the
apparatus platform.
ScienceWorkshop
d. Tighten the setscrew in the support rod mount of the Force Sensor.
3. Clamp down the apparatus (optional). Use a large C-clamp to clamp the Appa-
ratus Platform to the edge of your bench or table. One side of the platform has
three feet. In order to avoid bending the platform, position the clamp directly
over the center foot.
®
PASPORT
Figure 2: Three-step
pulley on the
“clockwise positive”
side of RMS
3
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