DA11_E shell.Ws_tot/(d*c) "Equivalent extensional stiffness matrix, 11-component"
DA22_E shell.Ws_tot/(d*c) "Equivalent extensional stiffness matrix, 22-component"
DA33_E shell.Ws_tot/(d*c) "Equivalent extensional stiffness matrix, 33-component"
DD11_E shell.Ws_tot/(d*c)*L^2 "Equivalent bending stiffness matrix, 11-component"
DD22_E shell.Ws_tot/(d*c)*L^2 "Equivalent bending stiffness matrix, 22-component"
DD33_E shell.Ws_tot/(d*c)*L^2 "Equivalent bending stiffness matrix, 33-component"