Jorge Lacayo-Pineda

Jorge is the expert for materials evaluation at Continental Tires, where he has held various executive positions since 1998. He is an honorary professor at Leibniz University of Hanover and a visiting professor at Qingdao University of Science & Technology. He chairs several standardization groups for rubber testing at ASTM International and ISO.

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Presentation

Rebound DMA – revisiting rebound resilience according to Schob

Rebound resilience according to Schob is a widely used test method to measure hysteretic losses in rubber samples. Its success story is related not only to the simplicity of the experiment but also to the characteristic contact times and the type of deformation similar to that observed in tire-road contact. The highly dynamic rebound impact contains valuable information accessible by analysis of the time derivatives of the deformation as a function of time. A new type of rebound tester is proposed here that can perform a dynamic mechanical analysis of the impact within a few milliseconds.