File:Fse-tnt-equivalence-v1.svg

Fse-tnt-equivalence-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

Pressure history of a far-field blast wave at a fixed point: a shock raises the pressure to its peak, a rarefaction takes it below atmospheric pressure, and the pressure then recovers. Based on Zalosh (2002), pp. 3-418 to 3-419.

Original illustration for TNT equivalence, level 4 Expert.

Source basis: Zalosh (2002), p. 3-419, Figure 3-16.12 (redraw, do not copy) and text on pp. 3-418 to 3-419 (shock, rarefaction, recovery, N wave; impulse for structural response)
Alt text: Pressure against time at a point far from an explosion: a sudden jump to a peak, a fall below atmospheric pressure, then recovery.

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New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:47, 2 November 2026		900 × 600 (7 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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TNT equivalence

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Short title	Pressure history of a far-field blast wave at a fixed point: a shock raises the pressure to its peak, a rarefaction takes it below atmospheric pressure, and the pressure then recovers. Based on Zalosh (2002), pp. 3-418 to 3-419.
Image title	Pressure against time at a point far from an explosion: a sudden jump to a peak, a fall below atmospheric pressure, then recovery. Source basis: Zalosh (2002), p. 3-419, Figure 3-16.12 (redraw, do not copy) and text on pp. 3-418 to 3-419 (shock, rarefaction, recovery, N wave; impulse for structural response)
Width	900
Height	600