thermal expansion

Heat increases size

Thermal expansion is the tendency of matter to increase in volume when heated.

As temperature rises, atoms and molecules move more vigorously, pushing apart from each other.

Engineers account for thermal expansion when designing bridges, railroad tracks, and pipelines—gaps and joints allow materials to expand without buckling.

The opposite process is thermal contraction.

physics

temperature

Measured heat intensity

heat transfer · thermodynamics · specific heat · phase change · energy absorption · heat capacity · conduction

materials

coefficient

Number multiplying a variable

shrinkage · warping · buckling

infrastructure

bridges

Structures spanning obstacles

buckling · pipelines · buildings · roads · culverts · dams · overpasses · tunnels · viaducts · finger joints

mechanics

strain

Excessive stretching force

deformation · elasticity · fatigue · creep · fracture · deflection · distortion · yielding · stiffness · modulus

Categories
Opposites
thermal vs other expansion mechanisms

thermal expansionfrost heave

Soil expansion from ice

volume change direction

thermal expansioncontraction

Reduction in size

shrinkage · compression

dimensional stability

thermal expansioninvariance

Quality of staying unchanged

Family

expand, expansion, expanded, thermal, expansive, expanding, expands, expandable, thermals

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