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Home>Testing Services>Durability and Crack Growth |
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Durability and Crack Growth |
Introduction
This section is divided into experimental sections as follows:
Home>Testing Services>Durability and Crack Growth>Static Tearing Energy
Static Tearing Energy
Failure in elastomeric parts is hard to predict and understand. Tensile failure strain data can be very misleading when materials are exposed to cuts or defects. A conservative approach to predicting failure is to use maximum strain, maximum stress and tearing energy information developed in a static tearing energy experiment. In this experiment, a cut is introduced into a planar tension test specimen and stretched until the crack grows. This experiment is often performed at multiple temperatures.
Applicable Technical Downloads
Pricing
Static Tearing Energy
Static Tear Specimen in the Grips
Home>Testing Services>Durability and Crack Growth>Dynamic Fatigue Crack Growth
Dynamic Fatigue Crack Growth
The following snapshots show a few of the testing services available to those researching durability and the growth of cracks in elastomeric materials.
CCD camera based vision systems have been integrated with digital servohydraulic instruments to provide crack measurements during testing. Crack images are captured at precise strain levels and at preset cyclic intervals and then processed to provide crack width and crack contour measurements along with stress and strain measurements as cyclic loading progresses.
Applicable Technical Downloads
Application of Energy Based Fatigue Crack Growth to Elastomer Compound Development
Pricing
Automated Crack Growth Experiment.
Plot of Crack Growth vs. Tearing Energy.
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