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A platform for research: civil engineering, architecture and urbanism
Equivalent single-degree-of-freedom analysis for blast-resistant design
Abstract Protective structures subjected to blast loads are often evaluated using the equivalent single-degree-of-freedom (SDOF) analysis. Design charts for the maximum responses in the SDOF system with elastic-perfectly plastic materials are available in many textbooks and manuals such as UFC 3-340-02. These charts provide data for large scaled distances, namely, in the far field. However, few data are available for small scaled distances, namely, in the near field. This paper presents a numerical study to extend the SDOF elastic-plastic design charts to the near field. A sensitivity study for time-step size and positive phase duration is performed to obtain the optimal solutions. The proposed charts are verified using the existing design charts and the finite element methods. Recommendations for the use of the proposed charts are provided.
Equivalent single-degree-of-freedom analysis for blast-resistant design
Abstract Protective structures subjected to blast loads are often evaluated using the equivalent single-degree-of-freedom (SDOF) analysis. Design charts for the maximum responses in the SDOF system with elastic-perfectly plastic materials are available in many textbooks and manuals such as UFC 3-340-02. These charts provide data for large scaled distances, namely, in the far field. However, few data are available for small scaled distances, namely, in the near field. This paper presents a numerical study to extend the SDOF elastic-plastic design charts to the near field. A sensitivity study for time-step size and positive phase duration is performed to obtain the optimal solutions. The proposed charts are verified using the existing design charts and the finite element methods. Recommendations for the use of the proposed charts are provided.
Equivalent single-degree-of-freedom analysis for blast-resistant design
Lee, Kyungkoo (author) / Shin, Jinwon (author)
International Journal of Steel Structures ; 16 ; 1263-1271
2016-12-01
9 pages
Article (Journal)
Electronic Resource
English
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