Advanced Materials: The Magic of Deciphering Special Properties of Elastomeric Composites
ABSTRACT: The mitigation of shock from explosive blasts is an important safety consideration, particularly in military domains. It is difficult to evaluate the properties of materials under extreme shock conditions. Experimental results backed by theoretical analysis have revealed how blast-induced shocks can be mitigated using materials called block co-polymers. It turns out that relevant properties of these materials can be quantified using low-temperature measurements and specialized material models. This lecture summarized work on polyurea and polyurea-based nano- and micro-scale composites and illustrated how this model successfully reproduces many of the observed test results.
Sia Nemat-Nasser was awarded the ASME Medal "For creating micro-architectured composites to mitigate shock-wave induced traumatic brain injury; metamaterials to redirect, attenuate and manage stress waves; and original comprehensive models of deformation and failure of metallic structures with application to metal forming and failure prevention; and for excellent contributions in promoting ASME's Materials Division."
The ASME Medal, established in 1920, is the highest award that the Society can bestow and is to recognize “eminently distinguished engineering achievement.” Only one ASME Medal may be awarded annually. Although some individuals have been honored by both the ASME Medal and Honorary Membership, each award has been made on the basis of different accomplishments.