ASTM D198 | Wood | Flexural Testing
ASTM D198 contains several test methods to evaluate the physical properties of various wood structural members including sawn lumber, glue laminated timbers, composite lumber, pre-fabricated I-joists, and others. Test methods within the specification include flexure, compression, tension, and torsion testing. The flexure method within ASTM D198 is one of the most popular test methods used. In this test, a structural wood member is supported at its ends while a flexure load is either applied in the center, or at two points located equidistant from the supporting locations.
Before conducting ASTM D198, it is important to read the entire specification in the relevant ASTM publication.
ASTM D198 | Wood | Flexural Testing
- Prepare your test specimen in accordance with the standard, noting all relevant histories of the treatment, conditioning, etc. of the wood specimen that could affect its strength.
- Adjust the flexure fixture in accordance with the specimen size and desired purpose of the testing. Center point loading, and third-point loading are both available options.
- Insert the test specimen into the flexure fixture.
- Apply the flexure load to the specimen at the constant rate of speed defined in the standard.
- Continue the test until failure, while recording load & deflection data at first failure, maximum load, and other points of sudden change.
Calculations:
- Modulus of Rupture
- Apparent Modulus of Elasticity
- Various Others
ASTM D198 | Wood | Flexural Testing
| ASTM D198 | Recommended Equipment |
|---|---|
| Testing System | |
| Fixturing |
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