Browse Publications Technical Papers 2000-01-0753
2000-03-06

New Continuous Compression Stress Relaxation Test for Evaluation of Sealant Materials in Cyclic Temperature Environments 2000-01-0753

A new continuous compression stress relaxation test method has been developed for evaluating elastomeric materials for sealing applications. During a test, the elastomer component is compressed at various strain levels under precise displacement control. The sealing force is recorded continuously at a finite time interval. The test can be performed over a large temperature range - 40°C<T<150°C, and in various environments (air, coolant and oil). The reproducibility of the method has been evaluated on similar types of testing equipment. This measurement technique is capable of simulating the real sealing conditions, and thus is more suitable for diagnosing the real seal failure.
The stress decay of sealant materials has been modeled using finite element method (FEM) for both constant and cyclic temperature conditions. The time-dependent elastic behavior of sealant materials is modeled using the finite-strain viscoelasticity theory. The stress relaxation results from FEA are consistent with the experimental measurements.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Application of Thermoplastic Elastomers as Sealing Materials

2001-01-0743

View Details

TECHNICAL PAPER

Development of the New FKM O-Ring for a Cooling Device

2005-01-1753

View Details

STANDARD

Test Method for Evaluating the Sealing Capability of Hose Connections with a PVT Test Facility

J1610_201210

View Details

X