Dear experts I have a hollow cylinder modeled in ANSYS APDL. I need to provide material properties which are in cylindrical coordinate as Er = 1000, Etheta = 2000 and Ez = 5000. Do I need to change the active CS to cylindrical CS or, do I need to use the coordinate system as Er = Ex; Etheta = Ey; Ez = Ez where z represents the axis of the cylinder; x and y are two transverse directions. With Regards-- Rajdeep ==================================================== Rajdeep Ghosh, PhD Candidate Composite Structures & Fracture Mechanics (CSFM) Laboratory Biomechanics and Simulations Laboratory Indian Institute of Technology Guwahati Amingaon, North Guwahati, Assam, India-781 039 ================================================ "You have to grow from the inside out. None can teach you, none can make you spiritual. There is no other teacher but your own soul. " - Swami Vivekananda ====================================================