In engineering, buckling is a failure mode characterized by a sudden failure of a structural member subjected to high compressive stresses, where the actual compressive stresses at failure are smaller than the ultimate compressive stresses that the material is capable of withstanding.
High temperatures affect buckling because the properties of the materials change and because of the thermal stresses and creep which are developed.
There are cases in which roads buckle in extreme temperature. Asphalt reacts differently to temperature changes, expanding and contracting evenly over the entire surface area. It is this incompatibility between concrete and asphalt to react similarly that causes asphalt overlays to crack and buckle.
The bridge in Quanzhou, China, cracked under intense heat in the area on July 23. The bridge, which was just 20 years old, can be seen suddenly buckling under the strain of temperatures that topped 40°C (104°F) that day.
Sources: indianexpress.com, cnn.com, wfmz.com
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