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| CHALLENGES
Engineering with elastomers is more complex and testing more difficult to interpret than for metals. The following questions point up some of the challenges of elastomer testing and design. |
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1. The first stress-strain test performed on
an elastomer tensile specimen at 10:00 am will differ radically from the
second one performed at 10:02 am. |
1. Do you know how to specify the test schedule
so the results will apply to your product? |
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2. There are many constitutive laws for the stress-strain
behavior of elastomers. |
2. Do you know which law is appropriate for your
product? |
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3. In 1980, E. Gaudette achieved a fatigue life
prediction within 3.2% of the test life of the elastomer bearing he was
working on. |
3. Do you know what tests and prediction methods
E. Gaudette used? |
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4. Fatigue crack growth of elastomers is correlated
by tearing energy. |
4. Do you know how to measure tearing energy?
Incorrect techniques are sometimes given in the literature. |
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Elastomer Engineering and Testing |
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