What is it about?
If a rubber band is subjected to a constant force, its length will increase with time. This phenomenon is called creep. If a rubber band is in tension under a fixed deformation, the force in the band will decrease with time. This phenomenon is called relaxation. Both the creep and the relaxation are the time-dependent response. The proposed model can predict the response.
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Why is it important?
The current methods developed for rubber creep and relaxation are validated to a specific environment. By combination with previous work on temperature effect, the model with general capabilities has been established and can be used to predict time-dependent response of different rubber components under different loadings, hardness, temperature (combined with the previous work).
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This page is a summary of: A general hyperelastic‐time model for numerical prediction on rubber relaxation and experimental validation under different environments, Polymer Engineering & Science, August 2019, Wiley, DOI: 10.1002/pen.25218.
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Simulation Methods for Rubber Antivibration Systems
Rubber is an excellent material for anti-vibration applications. Rubber-to-metal bonded systems are widely used in industry with long term service, such as in high-speed trains and marine ships. It is desirable to have a comprehensive book for simulation methods in this specialized field. This book is intended for engineers who work in industry on the simulation, design and applications of rubber anti-vibration systems. In addition, it can be served as a reference book for scientists and a textbook for university students in engineering. There are more than thirty-five real industrial cases, which have been peer-reviewed, to cover major topics including quasi-static, dynamic, fatigue, loading-unloading, heat generation (self-heating), creep/relaxation and dynamic interaction with fluid. This book is the second version of the book entitled ‘Numerical prediction & case validation for rubber anti-vibration system’ (in both English and Chinese). The newly added content contains prediction on idealised Mullins effect without data fitting; creep/relaxation changes from temperature, loading, hardness and different component; dynamic interaction between solid rubber and fluid. I am very grateful to my teachers and colleagues, especially to my late wife Dr. Wendy Xiaohui Wu (吴晓惠) for her contributions to this book.
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