Numerical study of the influence of irradiation parameters on the microwave-induced stresses in granite

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• 作者：Michael Toifl^a ; ^b ; Philipp Hartlieb^a ; ^c ; ^{philipp.hartlieb@unileoben.ac.at} ; Ronald Meisels^a ; ^d ; Thomas Antretter^a ; ^b ; Friedemar Kuchar^a ; ^d
• 关键词：Microwave heating ; Thermally induced stresses ; 3D microstructure ; Rock fragmentation ; FDTD &ndash ; FEM
• 刊名：Minerals Engineering
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：103-104
• 期：Complete
• 页码：78-92
• 全文大小：5852 K
• 卷排序：103

文摘

3D simulations of microwave (MW) induced stresses in granite samples are presented. Various analyses with either constant MW power or constant energy are performed. Optimum MW irradiation parameters are determined for constant energy input. It is demonstrated how rock comprising comparably weak absorbers will be damaged with microwave irradiation. Numerical results are corroborated by high-power microwave experiments.