PAM-RTM_2010_training_examples_case06英文书.PDF

Case_06 Case_06: 3D flow simulation with Prismatic / Tetrahedral mesh Objective Model setup to learn how to generate solid element using surface mesh extrusion be aware of the effect of solid element type selection on 3D flow simulation Simulation type RTM Data solid mesh creation Material property definitions Material assignment Boundary condition definitions original ? Mesh ? Extrude option application in PAM-RTM ? Split Solid Elements option to create tetrahedral mesh ? Resins: Resin Viscosity = 0.1 Pa·s ? Reinforcement: Preform type = fabric permeability K1 = 1E-9 m2 permeability K2 = 1E-10 m2 permeability K2 = 1E-11 m2 ? Laminate: Laminate Material = Preform Thickness = 0.0025 m Porosity = 0.5 layup = 0 / +45 / -45 / 90 ? 4 Zones: corresponds to 4 layers ? group “pressure” pressure = 1E+5 Pa state = 1 (open=1, close=0) central_quarter_start.unv reference Case_06a.dtf – Prismatic mesh case Case_06b.dtf – Tetrahedral mesh case Copyright ? ESI Group, 2009. All rights reserved. 1 Create a New, RTM simulation model Import mesh file central_quarter_start.unv Define Resin (Viscosity = 0.1) Define Preform K1 = 1E-9 m2 K2 = 1E-10 m2 K3 = 1E-11 m2 Define Laminate consisting of 4 layers right click on Layer1 to Insert/Copy a new layer material = Preform Thickness = 0.0025 m Porosity = 0.5 layup = 0/45/-45/90 Define principal permeability direction K1 and K2 K1: set Vector (1,1,0) K2: set Orthogonal to K1 Case_06 solution Copyright ? ESI Group, 2009. All rights reserved. 2 Select View ? Normal Vectors to check the normal vectors of all the elements note: before performing surface mesh extrusion to solid mesh, it is important to verify that the normal vectors all point in the same direction Select Mesh ? Transform ? Extrude In the Extrude Mesh interface, check the two box of the subarea of Laminate Use Laminate: select Laminate defined in previous step Orientations from ply angles: the orientation of each element is set as the orientation of the corresponding eleme