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....Model 3541 Fracture Mechanics
Clip-On Gages .... |
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For fracture studies, in compliance with standardized test
methods
such as ASTM E399 for fracture toughness and E813 for JIC.
These
gages conform to the requirements of ASTM E399. In addition,
the modified groove design complies with E813 tests
where greater stability and accuracy results from the
sharper groove root.
Clip-on gages are used for a variety of fracture mechanics
testing, using compact tension, arc shaped, disk shaped,
bend specimens or other specimen geometries in compliance
with ASTM and other standards organization’s test methods.
These gages are a full bridge strain gaged design. They
are compatible with any electronics designed for a strain
gaged transducer.
Clip-on gage can be used directly on test specimens
where the knife edges are integral with the test specimen,
or alternately with optional bolt-on knife edges.
Shunt Calibration Module available
Subtitle: Special Models for Other Fracture Mechanics
Testing
Special units are available for other fracture mechanics
tests. For example, the drawing shows a gage for ASTM
E1304, Plane Strain Fracture Toughness. This example
was produced for a 1 inch diameter bar, with 0.4 inches
of travel. Its performance and design is an enhancement
of the design recommended in E1304, with better accuracy.
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High
accuracy, full strain gaged bridge construction. |
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Sharp
grooves per ASTM E813 for improved stability when mounted.
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Optional
bolt-on knife edges. |
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Compatible
with any strain gaged electronics. |
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Fully
enclosed gages to protect from accidental damage. |
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All
capable of high frequency operation (50 Hz or faster,
depending on model). |
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Supplied
with high quality foam lined case. |
Specifications
Linearity: 0.15% for
travel ranges less than 4 mm (0.25 in.)
0.2%
for greater travel ranges
Output: 2 to 4 mV/V nominal, depending on model
Excitation: 10 VDC typical, 15 VDC or VAC max.
Temperature range: -40 to +100 C standard (-40 to +210
F).
Cable: Ultra-flexible cable, 8 ft. (2.5 m) standard
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Options:
Shunt calibration module
Available in special versions
Severe environment versions available
Model 3541 Available Versions:
The following combinations of gage length and travel
listed below are available as standard, except as
noted.
All are available in any temperature range listed.
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Metric:
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| Compressed Gage Length |
Travel Ranges |
| 3 mm |
12 mm |
| 5 mm |
2.5, 7, 10 or 12 mm |
| 8 mm |
10 or 12 mm |
| 10 mm |
1, 4, 8, 10 or 12 mm |
| 12 mm |
4 or 12 mm |
| 20 mm |
4 mm |
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English:
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| Compressed Gage Length |
Travel Ranges |
| 0.2 inches |
0.1, 0.25, 0.3, or 0.5 in. |
| 0.3 inches |
0.15 in. |
| 0.475 inches |
0.15 or 0.5 in. |
| 0.5 inches |
0.15, 0.25 or 0.5 in. |
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Temperature
Ranges:
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| Low: -265 to + 100 C (-450
to +210 F) |
| Standard: -40 to +100 C (-40 to +210
F) |
| High 1: -40 to +150 C (-40 to +300 F)
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| High 21: -40 to +175 C (-40 to +350
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Notes:
1Short term use to +200 C (400 F) acceptable
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For
more information on calibration services or digital retrofits
please contact us.
CALIBRATION
SERVICES, INC.
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300 Buttertown Road
Emlenton, PA 16373
(724) 867-6664 or (800) 793-1870
FAX (724) 867-1346
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