About Fatigue Ninja Friday #21
Thermal Runaway
Presenters:
William V. Mars, Ph.D., P.E., Founder & President
Thomas G. Ebbott, Ph.D.,, Vice President
Mark Bauman, Engineering Analyst
Jesse Suter, Development Manager
This episode on Thermal Runaway explores how the Endurica solvers can be applied to problems involving both transient and steady state temperature fields.
Rubber’s low thermal conductivity, combined with its viscoelastic energy dissipation under cyclic loading creates heat that cannot easily be transferred to the surroundings. High internal temperatures can result, affecting rubber’s elastic/viscoelastic, strength and fatigue properties as well as promoting chemistry evolution and ageing.
A coupled thermal-mechanical workflow will be described and demonstrated featuring the classic Goodrich flexometer test, in which a compression button is cycled at high amplitude and rate causing high internal temperatures that lead to failure.