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Temperature Field Due to a Moving Heat Source: A Moving Mesh Finite Element Analysis
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1985
Year
Numerical AnalysisEngineeringTransient Temperature FieldMechanical EngineeringMoving Heat SourceComputational MechanicsCrack TipConvective Heat TransferProcess ZoneHeat Transfer ProcessWelding ProcessNumerical SimulationThermal AnalysisThermal ModelingThermodynamicsTemperature Field DueThermomechanical AnalysisMaterials ScienceHot WorkingSolid MechanicsHeat TreatingHeat TransferFinite Element MethodHigh Temperature MaterialsThermal EngineeringMechanics Of MaterialsMultiscale Modeling
The transient temperature field (as seen by a moving observer) due to a moving heat source, such as the process zone near a dynamically propagating crack tip or an external agent as in the case of welding, is analyzed by a moving-mesh finite element procedure. The effects of the temperature-dependent material properties, and of the loss of heat to the surrounding medium through convection and radiation, are studied. Situations under which conditions in the process zone may be labeled as “isothermal” or “adiabatic” are explored. Estimates of temperature rise near the tip of a crack propagating at realistic speeds in structural steels are made.