Do you have any examples of shooting a cylinder through a hole in a plate
such that the cylinder bounces off the rim of the hole due to it being tilted?
Yes, please see the ANSYS LSDYNA 8.1 example below... fini /clear /title, Cylinder Impacting Plate with a Hole (cyl_into_hole.inp) /plopts,info,1 /color,pbak,0 /view,,1,1,1 /pbc,all,1 /pnum,type,1 /num,1 /eshape,1 /dscale,,1 /prep7 et,1,SOLID164 ! aluminum rod (projectile) r,1 mp,ex,1,70.0e9 ! Young's modulus, N/m^2 mp,nuxy,1,0.30 ! Poisson's ratio, unitless mp,dens,1,2.70e3 ! mass density, kg/m^3 tb,biso,1 ! bilinear isotropic hardening plasticity tbdata,1,420.0e6 ! yield stress, N/m^2 tbdata,2,100.0e6 ! tangent modulus, N/m^2 edmp,hgls,1,5 ! stiffness form of hourglass control et,2,SOLID164 ! rigid boundary r,2 mp,ex,2,70.0e9 ! Young's modulus, N/m^2 mp,nuxy,2,0.30 ! Poisson's ratio, unitless mp,dens,2,2.70e3 ! mass density, kg/m^3 edmp,rigid,2,7,7 ! rigid body completely fixed k,1,0.0,0.0,0.0 wprot,45.0 rectng,0.00163,0.00163,0.00163,0.00163 wpcsys,1,0 wpstyle circle,1,0.00381 a,2,3,4,5 a,2,9,6,3 a,3,6,7,4 a,4,7,8,5 a,5,8,9,2 vext,1,5,1,0,0,0.02347 ! extrude areas to create projectile volume vatt,1,1,1,0 local,11,1, 0,0,0, 0.0,0.0,90.0 ! local cylindrical CS with new Z = old X vgen,1, 1,5,1, 0.0,30.0,0.0, ,,1 ! tilt cylinder by 30 degrees ... vmesh,all ! mesh aluminum rod (projectile) cm,nrod,node cm,erod,elem vsel,none allsel,below,volu ! unselect everything ... csys,0 cyl4,0.0,0.0, 0.0055,0.0, 0.022,90.0, 0.0010 ! 1/4 of rigid plate with hole vatt,2,2,2,0 lsel,u,loc,z,0.0001,0.0009 lesize,all,,,16 ! fine mesh to capture hole curvature ... esize,,1 vmesh,all csys,1 vgen,4, 6,,, 0.0,90.0,0.0 ! generate remaining portions of rigid plate csys,0 nummrg,node nummrg,kp allsel,all eplot edpart,create ! create the Part list eddamp,all,,0.02 ! mass (alpha) damping eddamp,1,,1.0e4 ! stiffness (beta) damping edvel,vgen,nrod,0,0,300.0 ! initial velocity of projectile edcgen,ag ! automatic general contact fini /solu time,0.00025 ! termination time, seconds edrst,100 edhtime,500 edhist,nrod edenergy,1,1,1,1 ! calculate hourglass energy, etc. edout,glstat edout,matsum save solve fini /post1 set,last /edge,,1 /view,,3,1,3 plnsol,s,eqv andata,0.5,,0,0,0,3,0,1 /eof . 

