Blast and Impact Loading and Response of Structures
Full Session with Abstracts
Glass curtain walls systems are widely used in building construction and a lot of casualties after a blast event happen due to shattered glass getting inside the building. A series of three full-scale, nearly-conventional, curtain wall specimens were blast tested in the open arena of the Infrastructure Security and Emergency Responder Research and Training (ISERRT) Facility in Gastonia, NC.
There are a lot of numerical analyses methods used in the blast analysis and design of glass curtain walls systems. The techniques vary from simplified Single Degree of Freedom methods to high fidelity numerical analysis methods. The Applied Element Method (AEM) is an innovative numerical analysis method that can predict the behavior of material starting from the elastic behavior and passing through cracking and elements separation. The method can be also used for the prediction of debris and fragment speeds which makes it a suitable candidate for prediction of the behavior of glass curtain wall systems when subjected to accidental loads.
The reliability and practicality of AEM analysis is evaluated by modeling a series of three full-scale, nearly-conventional, curtain wall specimens that were blast tested in the open arena of the Infrastructure Security and Emergency Responder Research and Training (ISERRT) Facility in Gastonia, NC. Results from the analysis of AEM were compared to the experimental results. The AEM model included all the details for the curtain walls: the aluminum mullions connected together using screws and the laminated glass panels attached to the aluminum using structural silicon bead. The degree of agreement of the deflections, cracking patterns of the laminated glass, and the shattered glass fragment speed is reported.