The strength tests of thin-walled composite shells under non-stationary loads of different physical nature

Abstract

Abstract Mechanical action of energy fluxes of different physical nature is proposed to be simulated by one-side non-stationary loading. A set of gas-dynamic devices for generation of loads of the required space-time distribution is described. Two new explosive devices for formation of low-impulse loads of microsecond duration are proposed. The methods to measure the parameters of thin-walled composite constructions under dynamic and pulse loads are considered. Time deformation profiles of fiberglass cylindrical shell under low-impulse load of microsecond duration are given. The use of wire or foil sensors for the measurement of deformations gives close results when investigating the shell stage of deformation of fiberglass thin-walled constructions.