Distortion and Residual Stress in Quenched Aluminum Bars

Autor:	R. Becker, R. E. Smelser, M.E. Karabin, J. C. Liu
Rok vydání:	1996
Předmět:	Stress (mechanics) Materials science Deformation (mechanics) Mechanics of Materials Residual stress Mechanical Engineering Distortion Heat transfer Constitutive equation Boundary value problem Mechanics Condensed Matter Physics Displacement (fluid)
Zdroj:	Journal of Applied Mechanics. 63:699-705
ISSN:	1528-9036 0021-8936
DOI:	10.1115/1.2823352
Popis:	Predictions of distortion and residual stress for rectangular bars, quenched on one surface, are compared with experimental measurements. The heat flow is unidirectional, and the dominant stress component acts along the length of the bars. Thermocouples measure the transient temperature distribution, and displacement transducers monitor the distortion of the bars into circular arcs. The thermal history inferred from an inverse heat transfer calculation drives the mechanical stress and deformation analysis. The numerical analyses demonstrate the sensitivity of the quench distortion to the thermal boundary conditions, the thermophysical properties and the constitutive model. Agreement between the predicted and measured distortion is only qualitative. The predicted residual stress field compares very well with the residual stress inferred from layer removal techniques.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3f64cecfd6487e0d9b2d4071ad29a3a8 https://doi.org/10.1115/1.2823352 Zobrazit plný text záznamu