SPECIAL ISSUE ON THE 12TH INTERNATIONAL SYMPOSIUM ON STRUCTURAL ENGINEERING (ISSE-2012)No Access

A NEW APPROACH TO DERIVE NORMALIZED PRESSURE IMPULSE CURVES FOR ELASTIC MEMBERS

JONATHON DRAGOS

School of Civil, Environmental and Mining Engineering, The University of Adelaide, SA, Australia

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and

CHENGQING WU

School of Civil, Environmental and Mining Engineering, The University of Adelaide, SA, Australia

Corresponding author.

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https://doi.org/10.1142/S1793431113500164Cited by:1 (Source: Crossref)

Abstract

A pressure impulse (PI) diagram is a useful preliminary design tool for structural members against blasts. An extensive amount of investigation has been undertaken to generalize PI curves, using single degree of freedom (SDOF) theory, for elastic structural members. In this study, a new original approach also using SDOF theory, relying on the concept of effective pulse shape, is presented for determining a PI curve for any elastic member. The advantage of this approach is that it can be applied to any given type of blast load. The techniques and equations involved in this approach are outlined. Then, to assess the accuracy of this approach, elastic normalized PI curves generated using the new approach are compared against those obtained using the traditional methods. Finally, this approach is compared against other simplified techniques for determining elastic normalized PI curves.

Keywords:

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