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Article
Combining stress relaxation and rheometer test results in modeling a polyurethane stopper
In general, polymers show time-dependent stress-strain responses. The responses can be measured in a time-based test (e.g. a stress relaxation test) or a frequency-based test (e.g. a rheometer test). In a stre...
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Article
Hydroplaning simulation for a straight-grooved tire by using FDM, FEM and an asymptotic method
Much research has been conducted to simulate the hydroplaning phenomenon of tires by using commercial explicit FEM (finite element method) codes such as MSC.Dytran and LS-DYNA. However, it takes a long time to...
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Article
Consideration of the frictional force on the crack surface and its implications for durability of tires
In order to find out a physical quantity which controls the fatigue life of a structure and to predict the fatigue life of tires, a finite element simulation methodology to use the cracking energy density (CED...