High-Rate Failure Modes of Glazing Systems Subjected to Close-In Airblasts
Abstract
Extensive research has been conducted on plates and glass panes subjected to far-field blast. Empirical solutions and failure prediction models exist to characterize the response of glazing systems to these loading scenarios. Glazing is a term commonly used in building design to describe glass (e.g., curtain walls or windows) on building fades or interiors. Single-degree-of-freedom (SDOF) analyses and high-fidelity models have been established to address failure of glazing against far-field blast loads. However, these techniques frequently contain gaps for near-contact detonations due to the complex wave mechanics that exist for close-in blast scenarios. Moreover, complex structural glazing systems used for protective applications include several layers of glass, polyurethane, and polycarbonate, with the complex interaction of these layers further complicating the governing mechanics of response under high strain rates. Pressure gradients and high-rate failure modes of complex structural glazing systems subjected to close-in blasts are significantly different than those historically considered in classical far-field blast scenarios. New experimental methodologies, along with state-of-the-art numerical simulations, aim to characterize the failure modes of complex layered window systems when exposed to close-in blast scenarios.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 24, 2022
- Accession Number
- AD1186973
Entities
People
- Bowen G. Woodsen
Organizations
- Engineer Research and Development Center