Novel Techniques for Characterizing and Understanding the Response of Rubbers and Rubber-Based Composites to Impact Loading
Abstract
This report describes research on the subject of rate dependence in polymers. The research explores novel techniques for characterising the high rate properties of low impedance polymers. In particular, the difficulties of testing materials with low wave speeds are addressed using two different methods based on wave propagation:1) Optical measurements of the evolution of displacement fields induced by stress wave propagation are used to calculate constitutive parameters using the Virtual Fields Method (VFM). In particular, different loading conditions and time-temperature superposition areexplored.2) Measurements of wave propagation in slender rods using surface mounted strain gauges allows the evaluation of complex propagation coefficients, which in turn can be used to calculate constitutive parameters of linear viscoelastic materials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2016
- Accession Number
- AD1020837
Entities
People
- Clive Siviour
Organizations
- University of Oxford