TRANSIENT STRESSES GENERATED BY LOW-VELOCITY IMPACT ON ORTHOTROPIC LAMINATED CYLINDRICAL-SHELLS

The transient stress response of an orthotropic laminated open cylindr ical shell impacted by a solid striker is investigated. An analytic so lution which includes both transverse shear and contact deformation is presented and used in this study. A higher-order shear deformation th eory is employed and solutions for the loads, displacements and strain s are obtained using Fourier series expansions. An analytic impact for ce function recently proposed by the authors is used to predict the co ntact force between the striker and the shell and this is incorporated into the solution. By using this solution, transient stress distribut ions in the shell during impact are analyzed and the locations of maxi mum stresses determined. In addition, the effects of shell thickness a nd curvature on the maximum stresses induced are examined and discusse d.