thermal expansion

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ther·mal ex·pan·sion

(thĕrmăl eks-panshŭn)
Enlargement caused by heat.
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References in periodicals archive ?
You can see similar kinds of thermal contraction on roads and sidewalks.
Thermal contraction of the mount and steel pier had shifted everything, including the mount's polar alignment, by nearly an arcminute during the exposures.
Due to the decrease in temperature drop of the roof substrate, roof thermal contraction and expansion will reduce drastically, thus improving the roof substrate life span.
According to prior research [13], the coefficients of thermal contraction and expansion of AC are nonlinear with temperature, as shown in Table 6.
As thermal contraction of the sand skeleton was not accounted for in the numerical analysis, the settlement was slightly underestimated.
Paraphrasing Rayleigh, if the thermal expansion occurs while the pressure is high and the thermal contraction while the pressure is low, the gas does net work on the wave surrounding it during every cycle of the oscillation.
The solidification of plastics typically results in a reduction in their volume (shrinkage) followed by further thermal contraction as temperature decreases below their solidification temperature.
In addition, the difference between thermal contraction coefficient of the Al-Cu-Fe-Mn compounds and the matrix resulted in an interface with a high density of dislocations.
The TSB deemed that the fracture was caused by incremental stresses to the pipeline, which may have been the result of weakened soil support from maintenance activities over the years; record low temperatures that winter; recent work near the valve site that may have driven frost deeper into the ground; and thermal contraction as the pipeline cooled during a 20-day shutdown.
The other would be the methods used to join pipe, including early electric arc welds, acetylene welds, couplings and threaded collars, all of which could have strength or ductility properties that limit tolerance for loadings induced by frost heave or thermal contraction.
The thermal stresses and birefringence are generated due to the interactions between nonhomogeneous thermal contraction and changes in the polymer viscoelastic and optical properties during cooling.
When poured into a permanent mold, however, A206 has a tendency for hot tearing, which is caused by thermal contraction in the late stages of solidification.