3D fabric modelling with hyperworks tool for impact
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1 3D fabric modelling with hyperworks tool for impact PATTERN FABRIC Karine THORAL PIERRE 1
2 Company Profile CEDREM sarl. Case studies of modeling by FE with hyperworks tools Materials Researches in advanced composite Impact / shocks / crash Improvement of advanced composite 3D FOR different targets Radome / satellite / tank / armor vehicles and structure / train / ship / aircraft / containers / buildinds / off-shore oil rig... IN different materials Programming of numerical tools for stitched foam Simulation and programming tools for woven roving Specific material law of fiber in mesoscopic scale Metal and alloys / composite sandwich and fabric / honeycomb / foam / ceramic / explosives / concrete... WITH several projectiles Hailstones / birds strike / rocket / fragment / terminal ballistic ( 5.56 to 14.5 mm calibers...) / hypervelocity material jet (hollow charges) Fluid Structure Interaction (FSI) Folding / Unfolding inflatable structure Blast Underwater explosion New composite materials for impact and blast New composite material to absorb energy in third direction (patent of Cedrem) Composite crash box for impact 2
3 Company Partnership Studies of R&D design Development, Study and calculus, Workpackages, Realization of industrialization means and trials FE Simulation Rapid Dynamic Explosion / FSI Materials Researches in advanced Composite Composite RTM/infusion NDT controls Prototypes Manufacturing small series Full study Design CAO Simulation Trials Prototypes Manufacturing 3
4 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Future works 7. Conclusion 4
5 CONTENTS 1. Objectives 2. Background about fabric 3. Aim of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Future works 7. Conclusion 5
6 OBJECTIVES End users needs Mechanical properties of 3D Textile composites 3D structures Interlock Fabrics simulation experiments Definition of geometric architecture 6
7 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Future works 7. Conclusion 7
8 BACKGROUND - FABRICS Fiber material Discontinuous fibers Continuous fibers Unidirectional discontinuous Fibers Unidirectional continuous Fibers 2D Randomly oriented discontinuous Fibers Crossply or fabric continuous fibers multidirectional continuous Fibers 8
9 BACKGROUND - FABRICS From 2D to 3D : Stitching / Tufting From 2D to 3D : Z link From 2D to 3D : Interlock weave 2+ 9
10 1. orthogonal when Z-yarns go through the whole fabric between only two columns of weft yarns 2. through-thickness angle interlock when Z-yarns go through the whole fabric across more than two columns of weft yarns 3. angle interlock when Zyarns connect separate layers of the fabric. WARP INTERLOCK FABRIC BACKGROUND - FABRICS 10
11 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Future works 7. Conclusion 11
12 AIMS AUTOMATIC MODEL Automatic builds models for multi-layer fabrics Full geometric pattern of 3D multi-layer fabric Choose cross section of yarn (cylinder or elliptical shape) Automatic mesh tool of textile, shell and solid finite element meshes of fabrics with orthogonal warp and weft Allow the output meshes to be exported, suitable for analysis with Altair RADIOSS Define good orientation of fiber in material law Provide description of the internal geometry of textile in mesoscopic scale (size of the yarn) Mechanical behaviour of textile structures 12
13 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Future works 7. Conclusion 13
14 PATTERN FABRIC 14
15 PATTERN FABRIC 15
16 PATTERN FABRIC 16
17 PATTERN FABRIC 17
18 PATTERN FABRIC 18
19 PATTERN FABRIC 19
20 PATTERN FABRIC 20
21 PATTERN FABRIC 21
22 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Futur plan 7. Conclusion 22
23 CORRELATION Angle Warp Interlock with carbon fibres 23
24 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Future works 7. Conclusion 24
25 FUTURE WORKS Define the same tool for stitching/tufting process the braid 2D and interlock braid Include this tool in optimization run in hyperstudy with unknow parameters (geometric file for pattern). The main aim is to find the best fabric multi-layer for impact in bulletproof jacket Adjust the good correlation with real fabric and perhaps add more geometric parameters 25
26 CONTENTS 1. Objectives 2. Background about fabric 3. Aims of automatic model build for fabrics 4. Automatic model : pattern fabric 5. Correlation with real fabric 6. Futur plan 7. Conclusion 26
27 CONCLUSION Full geometric for 3D multi-layer Mechanical behavior with mesoscopic scale (yarn scale) Mesh in 2D and 3D Contact between yarn (friction...) Specific material law for yarn (discontinue material with different behavior in tensile and compressive in 3D of yarn) Include this pattern tool in hyperstudy to find 3D multi-layer for impact Orientation fiber for lay up 27
28 Thank you Questions... Karine THORAL PIERRE 28
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