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Predicting Foam Performance in Impact Applications for Accident and Damage PreventionUsing Foams for Impact Absorption
Foams are used in many applications that require shock and impact absorption. This can be safety related, for accident and damage prevention, as well as comfort related, such as in sports helmets, car bumpers and car seats, but also in flooring and defence applications.
Managing Impact Energy
Impact energy is managed not just through compression, but also by fracture, flex and tension, and the performance requirements depend on the type of impact the product must endure. Sometimes, the application requires multiple impact resistance versus a single impact, as is the case in different types of sports helmets, for example. The higher the density of the foam, the higher its impact absorption, but higher density means more weight, and – in many cases – weight is a key performance requirement for the end user.
Balancing these requirements is challenging, and a key issue for product developers is predicting foam performance in different impact circumstances and selecting the right material for an application. In many cases, this is done by sampling and testing many different foams on a trial and error basis.
This webinar will examine how foams function in impact energy application and will address the following topics:
- Examining foam performance in different impact circumstances
- Balancing foam density, weight, resilience and thickness for optimum impact absorption
- Evaluating how physical foam properties affect its performance: for example, cell size, structure and distribution, durometer, resilience, and any widely used standards for describing foam attributes
- Predicting foam performance through modelling