To minimize damage from an explosion, toward which side of a facility should the blast occur?

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Multiple Choice

To minimize damage from an explosion, toward which side of a facility should the blast occur?

Directing the blast toward the shortest side minimizes the area of facade that faces the explosion. The incident overpressure and impulse act on exterior surfaces, so a smaller exposed area means less total energy being transferred into the structure. With a shorter end, there’s less span for the blast to drive load into along the building length, reducing bending, interior loading, and potential damage to interior spaces. In contrast, a long side presents a larger target, allowing more energy to couple into the structure and propagate damage further inside. So, targeting the shortest side helps limit the amount of energy the building has to absorb and spread, which lowers overall damage.

Directing the blast toward the shortest side minimizes the area of facade that faces the explosion. The incident overpressure and impulse act on exterior surfaces, so a smaller exposed area means less total energy being transferred into the structure. With a shorter end, there’s less span for the blast to drive load into along the building length, reducing bending, interior loading, and potential damage to interior spaces. In contrast, a long side presents a larger target, allowing more energy to couple into the structure and propagate damage further inside. So, targeting the shortest side helps limit the amount of energy the building has to absorb and spread, which lowers overall damage.

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