1 / 21

Saad Nauman

Saad Nauman. University of Lille, France ENSAIT, France Topic WEAVING OF 3D WARP INTERLOCK REINFORCEMENT ON CONVENTIONAL LOOM. WEAVING OF 3D WARP INTERLOCK REINFORCEMENT ON CONVENTIONAL LOOM. Saad NAUMAN Univ. Lille North of France, F-59000, Lille, France

azia
Download Presentation

Saad Nauman

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Saad Nauman • University of Lille, France • ENSAIT, France Topic WEAVING OF 3D WARP INTERLOCK REINFORCEMENT ON CONVENTIONAL LOOM

  2. WEAVING OF 3D WARP INTERLOCK REINFORCEMENT ON CONVENTIONAL LOOM Saad NAUMAN Univ. Lille North of France, F-59000, Lille, France ENSAIT, GEMTEX, F-59100 Roubaix, France

  3. PLAN Introduction Classification of interlock fabrics Weaving of a 3D interlock reinforcement Observations made on photomicrographs Geometrical Modeling

  4. INTRODUCTION Continuum Models Mesostructural Models Alternative Approaches Numerical Models

  5. GEOMETRICAL APPROACH AGAINST NUMERICAL APPROACH Why Geometrical approach against Numerical approach? Traditional approach of geometrical modeling Why introduce new approach?

  6. HIERARCHY Continuous filaments (micro) Multifilament tows (meso) 3D Interlock fabrics (macro)

  7. CLASSIFICATION OF 3D INTERLOCK FABRICS According to the orientation of binding tow Angle Interlock Orthogonal Interlock According to binding depth of tow Through the thickness interlock Layer to layer interlock

  8. CLASSIFICATION OF 3D INTERLOCK FABRICS (a) Angle interlock/Through-the-thickness binding (b) Orthogonal interlock/Through-the-thickness binding (c) Angle interlock/Layer-to-layer binding (d) Orthogonal interlock/Layer-to-layer binding

  9. WEAVING OF A MULTILAYER INTERLOCK • Calculation of reed denting order R.C. = 10/2.5*W = 4 / W • Criteria of reed selection: • To avoid friction and to facilitate weaving • To suit the conceived geometry • Order of warp and weft tows

  10. CONCEPTION OF 13 LAYER INTERLOCK REINFORCEMENT Diagonal redistribution of warp tows inside the reed dent and in the fabric Vertical blocks of warp tows inside the reed dent and in the fabric

  11. NUMBERING ORDER OF WARP TOWS

  12. GEOMETRY OF INTERLOCK REINFORCEMENT In order to study : Reed denting order Numbering order of warp tows

  13. OBSERVATIONS MADE ON PHOTOMICROGRAPHS

  14. ELEMENTS OF FABRIC GEOMETRY Cross section Trajectory

  15. THEORY OF BLOCKS Blocks of tows Interblock displacement Interblock crimp

  16. BLOCKS OF WARP TOWS INSIDE A REED DENT A Interblock displacement (warp) = A = mm/dent

  17. CONTINUUM OF GEOMETRY Cmax(warp) Cmax(weft) C(weft) = 0 C(warp) = 0 C(warp) > 0 Cmax(warp) Cmax(weft) C(weft) > 0

  18. EVOLUTION OF TOW CROSS SECTION WITH TRAJECTORY WEFT Cmax(warp) Cmax(weft) WARP

  19. CONCLUSION Modeling of two extreme geometries i.e., Cmax(warp) and Cmax(weft) Modeling of cross sectional evolution of warp and weft tows Identification of an architecture on the continuum between Cmax(warp) and Cmax(weft)

  20. Thanks Questions

  21. POWER ELLIPTICAL CROSS SECTION

More Related