A research paper co-written by DuPont's Stephen J. Bennison has
received the Orr Award from the American Society of Mechanical
Engineers. The paper, titled Mechanical Response of Cracked Laminate
Plants, analyzes the dual roles of interlayer and glass properties
regarding the design of glass laminates. The paper is a supplement
to the current body of literature on glass fracture and failure
investigations. Other authors of the 2002 paper were Dr. Anand
Jagota (then with DuPont), Professor Sunil Saigal and Dr. Muralidhar
Seshadri (then both of the Department of Civil and Environmental
Engineering, Carnegie Mellon University).
According to DuPont's announcement, Dr. Bennison and his colleagues
provided a framework for ascertaining the failure probability
in the glass ply, therefore enabling a more prescient design for
laminated glass structures. The information can be used to create
a set of fragment patterns that are most likely to occur upon
glass fracture. The polymer layer and glass-polymer interfacial
bonding can then be designed to meet the residual strength criteria.