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Thermomechanical Modeling of Laser Spot Welded Solar Absorbers
dc.creator | Spyrou, L. A. | en |
dc.creator | Aravas, N. | en |
dc.date.accessioned | 2015-11-23T10:48:23Z | |
dc.date.available | 2015-11-23T10:48:23Z | |
dc.date.issued | 2015 | |
dc.identifier | 10.1115/1.4028197 | |
dc.identifier.issn | 1087-1357 | |
dc.identifier.uri | http://hdl.handle.net/11615/33316 | |
dc.description.abstract | A finite element (FE) approach is developed to investigate the laser spot welding (LSW) of flat-plate solar absorbers and the stress and distortion fields that develop after fabrication and during operation. Numerical calculations at two different levels are carried out. At a microscopic scale, the details of a spot weld are analyzed. At a macroscopic level, a global approach is used to simulate the joining of the pipeline to the absorber plate and the "restoration" (flattening) process of the absorber. The simulated welding-induced distortion is compared with experimental measurements. The thermomechanical behavior of a solar absorber under working conditions is also studied and operational stresses and the critical locations for structural failure are reported. | en |
dc.source | Journal of Manufacturing Science and Engineering-Transactions of the Asme | en |
dc.source.uri | <Go to ISI>://WOS:000348121400016 | |
dc.subject | solar absorber | en |
dc.subject | laser spot welding | en |
dc.subject | residual stress | en |
dc.subject | welding distortion | en |
dc.subject | supercooling | en |
dc.subject | finite element analysis | en |
dc.subject | FINITE-ELEMENT SIMULATION | en |
dc.subject | NUMERICAL-SIMULATION | en |
dc.subject | RESIDUAL-STRESS | en |
dc.subject | ALUMINUM | en |
dc.subject | TEMPERATURE | en |
dc.subject | PREDICTION | en |
dc.subject | DISTORTION | en |
dc.subject | SHEETS | en |
dc.subject | JOINTS | en |
dc.subject | COPPER | en |
dc.subject | Engineering, Manufacturing | en |
dc.subject | Engineering, Mechanical | en |
dc.title | Thermomechanical Modeling of Laser Spot Welded Solar Absorbers | en |
dc.type | journalArticle | en |
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