ANSYS Composite PPrep//PPostt 1122.11.55 George Bauer 99//2288//22001100 © 2010 CAE Associates ANSYS Composites PrepPost – V12.1.5 UUssee ooff ccoommppoossiitteess hhaass ggrroowwnn iinn mmaannuuffaaccttuurriinngg dduuee ttoo wweeiigghhtt, ssttrreennggtthh, and design flexibility advantages. Often to, model and assess composite designs, the complexity is quite cchhaalllleennggiinngg. Engineering layered composite materials with function, strength, and durability assessment involves: WWoorrkkiinngg wwiitthh aa wwiiddee vvaarriieettyy ooff iissoottrrooppiicc, oorrtthhoottrrooppiicc, ccoonnttiinnuuoouuss, aanndd — discontinuous materials. Defining layup stacking sequence and orientation. — UUttiilliizziinngg ccoommpplleexx ggeeoommeettrryy wwiitthh ccuurrvvaattuurree aanndd iinntteeggrraatteedd ppaarrttss. — Evaluating multiple failure criteria. — ACP addresses these concerns with modeling and assessment of composite structures! 2 ANSYS Composites PrepPost – V12.1.5 AACCPP CCaappaabbiilliittiieess SSuummmmaarryy:: Dedicated tool to provide leading-edge technology in pre- and — postprocessing of layered composite structures. AAlllloowwss ffoorr eeaassyy aanndd eeffffiicciieenntt ddeeffiinniittiioonn aanndd mmooddiiffiiccaattiioonn ooff llaayyeerreedd- — composite structures: material behavior, ply definitions, orientations of the fibers. An accurate representation of the structure with mesh and geometry — sources, ply draping, ply orientation. Utilizes core ANSYS technology for element types and solution. — Composites specific post-processing with a wide array of tools to — iinvestiigate andd undderstandd thhe anallysiis resullts. Integrates with Workbench Mechanical as well as with Mechanical APDL — Handles both 2D and 3D structures (from extrusion) — Provides failure assessment as well as manufacturing information such as — draping and plybooks. 3 ACP Base Modeling Setup The ANSYS Composite PrepPost utilizes an existing surface model mesh and named selections. TThhee mmooddeell iinncclluuddiinngg mmeesshh, loads, and boundary conditions can be defined in ANSYS Mechanical or in ANSYS Mechanical APDL. AANNSSYYSS MMeecchhaanniiccaall pprroovviiddeess aa menu to interact with ANSYS Composite PrepPost. 4 ACP Material and Laminate Modeling AA hhiieerraarrcchhiiccaall ddaattaa ddeessccrriippttiioonn ooff mmaatteerriiaallss, ssttaacckkuuppss aanndd llaammiinnaatteess. Material data can be imported from external sources. (ESACOMP, Python & CSV…) Base information: Add thickness, Engineering data and material limits pricing and draping information Fabrics Stack fabrics,, add pricing and draping Stackups information Define final laminate Laminates product 5 Accurate Representation of the Geometry UUsseerr ooff tthhee AANNSSYYSS Composite Prep/Post benefit from all the advantages of the AANNSSYYSS ssoolluuttiioonnss:: Direct CAD imports from all — major CAD products Impport of standard ggeometryy — formats (STEP, Parasolid…) Geometry cleaning — Best-in class meshing — capabilities for surface and solid models – with linear or quadratic elements Meshing information as well as loads and boundary ccoonnddiittiioonnss aarree ttrraannssffeerrrreedd ttoo ANSYS Composite PrepPost 6 Defining Laminate Regions LLaammiinnaatteess aarree ddeeffiinneedd oonn zzoonneess (element groups), as well as orientations. Zones can be applied a pre- defined laminate. Additional Laminates can be constructed by progressive ssttaacckkiinngg oonn zzoonneess. Support for layer drop-off and design rules. Easy, flexible generation of layered solid model based on shell model. 7 ACP Fiber Direction Tracking EEaassyy--ttoo--uussee yyeett aaddvvaanncceedd definition of fiber orientations. ANSYS Composite PrepPost uses aa ccoonncceepptt ooff oorriieenntteedd eelleemmeenntt--sseettss:: user can define material — application direction and material 0° direction. Multiple oriented element-sets can — be overlapping and differently oriented: unique definition of asymmettriic llamiinatte. One or several coordinate systems — assigned to an oriented element- sseett:: nnoo nneeeedd ffoorr ppllyy-ssuubbddiivviissiioonn. Cartesian, cylindrical and spherical — systems are supported. 8 Visualization of Stacking Sequence SSttaacckkiinngg sseeqquueenncceess aanndd ccoommppoossiittee tthhiicckknneesssseess ccaann bbee ddiissppllaayyeedd oonn arbitrary sections or on the entire model. 9 Computing the Solution TThhee AANNSSYYSS CCoommppoossiittee PPrreepp//PPoosstt uusseess tthhee AANNSSYYSS MMeecchhaanniiccaall AAPPDDLL solution to compute the base solution of the model. AAllll aaddvaannttaaggeess ooff oourr ccoorree ssoolluttiioonnss aarree tthheerreeffoorree aavaaiillaabbllee: Support of the latest element generation: linear and quadratic shells, linear and — quadratic solids. LLaayyeerreedd eelleemmeenntt ffoorrmmuullaattiioonn. — Shell section definition. — Isotropic, orthotropic and anisotropic material models. — FFaasstt aanndd aaccccuurraattee ssoollvveerr. — 10
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