METHOD Repair of cracks in thin-walled shell structures

摘要

method of repairing cracks in thin-walled u043eu0431u043eu043bu043eu0447u0435u0447u043du044bu0445 u043au043eu043du0441u0442u0440u0443u043au0446u0438u00a0u0445, including installation of fastening elements from alloys with effect of u043fu0430u043cu00a0u0442u0438 form to u0442u043eu043du043au043eu0441u0442u0435u043du043du043eu043cu0443 corp ccs, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 orderthe fastening elements of the alloy to effect u043fu0430u043cu00a0u0442u0438 form (for example nickel titanium) or from a previously u0440u0430u0441u0442u00a0u043du0443u0442u043eu0433u043e polymer (e.g. plexiglas or polycarbonate) u0432u044bu043fu043e u043bu043du00a0u044eu0442u0441u00a0 in the form of "flat u0433u0430u043du0442u0435u043bu0435u0439u00bb and u043fu0440u0438u043au043bu0435u0438u0432u0430u044eu0442u0441u00a0 with both ends of the cracks, thus the working part of the u0441u0435u0447u0435u043du0438u00a0" flat u0433u0430u043du0442u0435u043bu0435u0439u00bb u043fu043eu0434u0431u0438u0440u0430u044eu0442u0441u00a0 formula;Fg = nkEm (tm) 2 / eg,;where is the area of the working part of the Fg u0441u0435u0447u0435u043du0438u00a0 "flat u0433u0430u043du0442u0435u043bu0435u0439u00bb; n is the u043cu0435u043du00a0u044eu0449u0438u0439u0441u00a0 ranged from 1.2 to 3.6%, with the width of working parts of the u0441u0435u0447u0435u043du0438u00a0" flat u0433u0430u043du0442u0435u043bu0435u0439u00bb (h = (ntm); k is the coefficient u043cu0435u043du00a0u044eu0449u0438u0439u0441u00a0 ranged from 0.8 to 0.9; em - elastic modulus material design; tm - the thickness of the shell design of cracks; eg, elastic modulus material fastening element.