ABQUS-composites复合材料建模.pdf

发布时间：2022-06-16 发布人：admin 分类：说明书资料大小：3.16M 资料格式：pdf 举报版权申诉

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第1页.png

第1页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第2页.png

第2页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第3页.png

第3页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第4页.png

第4页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第5页.png

第5页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第6页.png

第6页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第7页.png

第7页 / 共18页

709f177c-1929-4ef3-b399-8a89aff35e5d.pdf-第8页.png

第8页 / 共18页

文本预览

28.10.2009 Simulation of Composite Structures with Abaqus Unified FEA from SIMULIA Martin Küssner Dassault Systemes Simulia GmbH Martin.KUESSNER@3ds.com DS Strategy: 3D virtual experience everywhere 2 1

DS Brands 3D MCAD Virtual Product Virtual Testing Virtual Production PLM User Collaboration Experience P h o o t c o u r t Productive, Easy- to-use 3D Design Product Excellence Realistic Simulation Production Performance Collaborative Intelligence Lifelike Experience e s y o f B M W Abaqus Product Line Abaqus/CAE Interactive, parametric, finite element modeler and results viewer Abaqus/Standard Linear and nonlinear statics, dynamics, acoustics, and heat transfer Abaqus/Explicit Transient, very large deformation, highly nonlinear simulations Tightly integrated with Abaqus/Standard Abaqus for CATIA V5 Access to Abaqus technology from within the V5 environment 28.10.2009 2

Industry trends Composite usage is increasing in all industries Aerospace Boeing 787 – 1st large jet with a majority of composites by weight Airbus 350WX - Over 60% of airframe made of new materials UAVs – primarily composite construction Automotive F1 race teams – composite shells Toyota's Tundra pickup has a composite box Nissan Concept uses carbon-fiber components Civil Composite-wrapped bridge structures Dentistry Fiber-reinforced composite dental bridges! Industry need – customer pains Current simulation methodology is not up to the task Verification of composites relies on testing Expensive, time consuming Current methodology has not evolved since the 1980s Typical simulation uses linear methods to estimate first failure Current composite interfaces are not up to the task It is very time consuming to define composites and post-process composites in today's CAE tools Some CAD/CAE/PLM packages do not support progressive failure, delamination, or material damage With linear methods, design margins for composite parts today are often too high – the part is too expensive and heavy as a result This reduces the value of the use of composites and blunts the cost advantages that composites can provide to a product 28.10.2009 3

Abaqus Composite Solution mission statement Abaqus solution for our customers: Perform advanced composite simulations including static and dynamic analysis that includes linear, nonlinear, and damage / fracture /failure within a single environment Predict the stiffness, first-failure, strength, and post-failure behavior at the component and full-vehicle structural scale of complex composite products Simulate low- (from tool drop or hail), medium- (from runway debris), or high-velocity (ballistic penetration) events including Barely Visible Impact Damage (BVID) and Bird Strike Have the very best in composite modeling, visualization, and post- processing through /CAE's new ply-based interfaces Composites - Technology and Features Features Ease-of-use and efficiency features interface for pre-processing post-processing options Interface to CATIA CPD Technology Abaqus solvers can solve a variety of problems Ballistic impact on unidirectional composite Model damage in fiber-reinforced materials Barely Visible Impact Damage (BVID) Composite plate post-buckling behavior Delamination using cohesive elements Woven fabric composite beam crush Skin-stringer debonding using VCCT 28.10.2009 4

28.10.2009 Interface for Definition of Composites Draping Technology Simulayt Composite Modeler for Abaqus/CAE can be purchased as a 3rd party product that runs as a module of /CAE-Features Determine the flat pattern needed Draping simulation provides accurate material directions for laminate 5

Modeling Composite Structures In Reality, composite structures are built by laying-up fabrics on top of each other in patterns to create the part Modeling Composite Structures In Reality, composite structures are built by laying-up fabrics on top of each other in patterns to create the part In the FEA world, users have to define various sections to represent the different regions of the composite Which is time consuming and very difficult for complicated components This also results in very difficult post-processing Element layers and section points do not directly correspond to a consistent piece of material 28.10.2009 6

Users Can Now Model in Terms of Plies Think in terms of “Plies” Representation of the materials as placed in a mold User supplied ply name is available in ODB and /Viewer for easy tracking in post-processing operations Plies defined on picked regions or named sets of partitioned geometry or orphan mesh parts Ply-1 Ply-2 Ply-3 Composite modeling in Abaqus Composite Layup Object Part level replacement for multiple sections, section assignments and material orientations for layered composites - in one object Advantages: Ply-based More intuitive definition of ply regions than “artificial” section assignments Output requests can be defined by composite layup Suppressible Supports shell, layered continuum shell and layered solid elements 28.10.2009 7

Composite Plies Manager Options Ply Management via right mouse menu Copy plies Move plies Delete plies Invert plies Read from and write to file Ply Patterning Create symmetric layup Copy plies multiple times Composite Query 28.10.2009 8

分享到：

赞收藏

资料库

ABQUS-composites复合材料建模.pdf

相关推荐

行业

热门标签

最新资料