Study on explosion in different cross-sectional shape charge cavity in tensile stress field
نویسندگان
چکیده
Purpose. To study nature and patterns of main cracks development in a solid medium during an explosion explosive charge cavity with longitudinal symmetrical incision various cross-sectional shapes Methodology. Experimental methods were used to process dynamics, direction the their transformation into clear optical image under influence focused laser beam through system – method caustics. Study on stress field changes combined effect static dynamic loading fracture by polarisation-optical method. Based correlation analysis methods, results are analysed. Findings. It is experimentally proved that changing angle from 0 45° between cut plane jointly affected tensile stresses action promotes opening both parallel perpendicular direction. Dependences propagation caused model different conditions constructed. Calculations intensity coefficients performed. Originality. Improved research methodology for establishing mechanism media proposed. Physical formation blast revealed. Dimensions spatial location crack along substantiated. Also, idea using directed form protective strip rock mass was further developed. Practical value. The received can be necessary developing new technical solutions provide additional measures environmental seismic safety protected civil industrial facilities blasting operations quarries mines.
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ژورنال
عنوان ژورنال: Naukovij vìsnik Nacìonal?nogo gìrni?ogo unìversitetu
سال: 2023
ISSN: ['2071-2227', '2223-2362']
DOI: https://doi.org/10.33271/nvngu/2023-3/032