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- W1652874080 abstract "We derive a mathematical model of progressive collapse and examine role of compaction. Contrary to a previous result by Bav{z}ant and Verdure, J. Engr. Mech. ASCE 133 (2006) 308, we find that compaction slows down the avalanche by effectively increasing the resistive force. We compare currently available estimates of the resistive force, that of Bav{z}ant and Verdure (2006) corrected for compaction for World Trade Center (WTC) 2, and of Beck, www.arxiv.org:physics/0609105, for WTC 1 and 2. We concentrate on a damage wave propagating through the building before the avalanche that figures in both models: an implicit heat wave that reduces the resistive force of the building by 60% in Bav{z}ant and Verdure (2006), or a wave of massive destruction that reduces the resistive force by 75% in Beck (2006). We show that the avalanche cannot supply the energy to the heat wave as this increases the resistive force by two orders of magnitude. We thus reaffirm the conclusion of Beck (2006) that the avalanche is initiated in the wake of the damage wave." @default.
- W1652874080 created "2016-06-24" @default.
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- W1652874080 date "2008-08-21" @default.
- W1652874080 modified "2023-09-27" @default.
- W1652874080 title "Role of Compaction Ratio in the Mathematical Model of Progressive Collapse" @default.
- W1652874080 hasPublicationYear "2008" @default.
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