Virtual Tire Development is an innovative technology that enables the design and testing of a digital tire twin, allowing for virtual optimization of its characteristics before physical testing. The effectiveness of the virtual approach relies on the availability of accurate physical models that describe the rheological properties of the various elastomeric compounds used in a tire under different operating conditions. Additionally, efficient numerical tools capable of handling the complex mechanical problem are essential. The research project has been strategically built to achieve these long-term goals, leveraging the complementary expertise in solid mechanics, materials engineering, and computational mechanics gained by the project members over the years.
The main expected outcomes of this research project include the development of analytical and numerical tools to simulate the behavior of elastomers under finite strains, encompassing viscoelasticity, fracture, fatigue, and temperature effects. By enhancing our comprehension and simulation of fracture mechanisms in rubber laminates, we take fundamental steps towards the ultimate goal of fully virtual prototyping and testing of pneumatic tires.
The project is structured into three work packages (WP) with multiple tasks (T) within each:
- WP1: Finite thermoviscoelasticity of elastomers, including tasks focused on formulating nonlinear viscoelastic models and incorporating thermal effects.
- WP2: Fracture of elastomers, with tasks centered around applying a phase-field approach to model elastomer fracture and investigating fracture induced by fatigue.
- WP3: Towards simulating failure mechanisms in the whole tire structure, involving tasks related to developing a fracture model for elastomeric multilayers and simulating failure in tires, as well as optimizing the implementation of the model through the development of new algorithms.
All activities within the project are interconnected, and each task has specific research activities and expected deliverables outlined. By successfully accomplishing these objectives, the project aims to revolutionize the tire industry through advanced virtual prototyping and testing, driving efficiency, sustainability, and accuracy in the design process.