Nonlinear Constitutive Modeling of Viscoelastic Foams: Application to Impact Protection
[Technical Report, Final Report]
Pagination or Media Count:
Open-cell elastomeric foams are materials made up of two continuous phases a polymeric elastomer matrix and a connected, air-filled pore space. Due to their elastomeric matrix and porous structure, these materials are highly compliant and capable of undergoing large, reversible deformations involving substantial changes in volume. Moreover, due to the viscoelasticity of the elastomeric matrix, many elastomeric foams display a highly dissipative, rate-dependent mechanical response, manifesting in rate-dependence of the stressstrain response and hysteresis under reversed loading. These materials are widely-used in situations, in which both compliance and energy dissipation are necessary, e.g., impact protection, cushioning, and vibration damping, and appear in a wide variety of specific applications, such as personal protective equipment.
- Laminates and Composite Materials