*HEADING NONLINEAR POSTBUCKLING ANALYSIS--10% IMPERFECTION S4R5 WITH CONTRIBUTIONS FROM FIRST FOUR MODES COMPOSITE CYLINDRICAL PANEL WITH CIRCULAR HOLE ** ** FROM STUDY IN THESIS OF G.M. STANLEY ** *NODE,INPUT=laminpanel_s4r5_node.inp *NSET,NSET=OUTSIDE,GENERATE 2001,2017 2017,2033 2033,2049 2049,2065 *NSET,NSET=HOLE,GENERATE 1,17,1 17,33,1 33,49,1 49,65,1 *NSET,NSET=XPARB,GENERATE 2001,2017 *NSET,NSET=XPART,GENERATE 2033,2049 *NSET,NSET=YPAR,GENERATE 2049,2065 2017,2033 *NSET,NSET=PROFILE,GENERATE 57,2057,100 25,2025,100 *EQUATION 2, 2033,3,1.,2041,3,-1. 2, 2035,3,1.,2041,3,-1. 2, 2037,3,1.,2041,3,-1. 2, 2039,3,1.,2041,3,-1. 2, 2043,3,1.,2041,3,-1. 2, 2045,3,1.,2041,3,-1. 2, 2047,3,1.,2041,3,-1. 2, 2049,3,1.,2041,3,-1. *NSET,NSET=MASTER 2041, *ELEMENT,TYPE=S4R5 1,1,201,203,3 *ELGEN,ELSET=ALL 1,31,2,1,10,200,100 *ELEMENT,TYPE=S4R5 32,63,263,201,1 *ELGEN,ELSET=ALL 32,10,200,100 *ELSET,ELSET=PROFILE,GENERATE 12, 912,100 13, 913,100 28, 928,100 29, 929,100 *SHELL GENERAL SECTION,ELSET=ALL 7.90239D5,2.51367D5,7.90239D5,-3.08578D-6,-7.94285D-5,2.69436D5,0.,0. 0., 4.92719D+02,0.,0.,0.,1.91513D+02,5.17951D+02,0. 0.,0., 1.89245D+01 , 1.89245D+01 ,2.03602D+02 *BOUNDARY XPARB,1,6 XPART,1,2 XPART,4,6 YPAR,1,2 *RESTART,WRITE,FREQUENCY=5 *STEP,NLGEOM,INC=15 *STATIC,RIKS 1.,1.,,,,2041,3,-0.08 *CLOAD 2041,3,-10000. *MONITOR,NODE=2041,DOF=3 *EL PRINT,ELSET=PROFILE,POSITION=AVERAGED AT NODES,FREQUENCY=5 SF, *NODE PRINT,NSET=XPART,TOTALS=YES,FREQUENCY=5 U, RF, *NODE PRINT,NSET=XPARB,TOTALS=YES,FREQUENCY=5 U, RF, *NODE FILE,FREQUENCY=1,NSET=MASTER U,CF *END STEP