Thermal ShockDOE-HDBK-1017/2-93THERMAL STRESSSummaryThe important information in this chapter is summarized below.Thermal Stress SummaryTwo types of stress that can be caused by thermal shock are:Tensile stressCompressive stressCauses of thermal shock include:Nonuniform heating (or cooling) of a uniform materialUniform heating (or cooling) of a nonuniform materialThermal shock (stress) on a material, can be calculated using Hooke's Law fromthe following equation. It can lead to the failure of a vessel.F/A =EaDTThermal stress is a major concern due to the magnitude of the stresses involvedwith rapid heating (or cooling).Operational limits to reduce the severity of thermal shock include:Heatup and cooldown rate limitsTemperature limits for placing systems into operationSpecific temperatures for specific pressures for system operationRev. 0Page 5MS-03
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