Journal Published Online: 01 January 2001
Volume 23, Issue 1

Viscoelastic Modeling of Press-Fitted Composite Cylinders



Interference stress is an important design factor for press-fitted cylinder applications such as flywheels and pressure vessels, which may decrease over a period of time. Stress relaxation and creep in press-fitted composite cylinders are investigated based on anisotropic viscoelasticity. The analysis accounts for ply-by-ply variation of material properties and fiber orientations through the thickness of cylinders. Viscoelastic characteristics of press-fit composite assemblies are quite different from those of isotropic cylinders, due to the extreme anisotropy of composite materials. Results show a significant change of interference stresses over a period of time, which is critical to structural performance and durability.

Author Information

Tzeng, JT
U.S. Army Research Laboratory, Weapons and Materials Research Directorate, Aberdeen Proving Ground, MD
Pages: 7
Price: $25.00
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Stock #: CTR10909J
ISSN: 0884-6804
DOI: 10.1520/CTR10909J