University of Sheffield, United Kingdom
Transient response and failure of UHMW-PE (Dyneema) panels subjected to explosive detonations
This work describes an experimental investigation into the response and failure characteristics of ultra-high molecular weight polyethylene (UHMW-PE), commonly known as Dyneema©, when subjected to loads arising from high explosive detonations. Panels were manufactured from Dyneema HB26 in a polyurethane matrix, mounted in a clamping frame, and subjected to explosive detonations using PE4 at a stand-off distance of 50 mm. The charge mass was varied to obtain a range of responses, including rupture failure. For tests not involving rupture, a high-speed stereo-vision system, combined with digital image correlation, was used to determine the transient displacement of the rear face of the panel, obtained insights into the peak deformation and rebound characteristics.
Genevieve Langdon is a Professor of Blast and Impact Engineering at the University of Sheffield. She trained as a mechanical engineer, completing her undergraduate and doctoral studies at the University of Liverpool. She is a chartered engineer, member of the British Society for Strain Measurement, member of the Academy of Sciences of South Africa, and is the secretary of the International Society of Impact Engineering. She gained first-hand experience in explosion testing after spending fifteen years working in Cape Town as an academic, including serving as Director of the Blast Impact and Survivability Research Unit for five years. She is currently an Honorary Professor at the University of Cape Town. Prof Langdon’s research interests include the survivability of lightweight structures and materials to blast loading, blast injury, and the transient response of structures subjected to explosion loading.