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eLamX 2.2


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eLamX 1.1


Overview

eLamX is a freeware, Java-written composite calculator, which is being developed at Technische Universität Dresden, Institute of Aerospace Engineering, Chair of Aircraft Engineering. Calculations are based on the classical laminated plate theory. At present modules for composite calculation including hygrothermal effects, failure analysis and engineering constants, stability and deformation analysis of composite plates, comparison of a multitude of failure criteria and the World-Wide Failure Exercise are implemented. Additional modules dealing with micromechanics, nonlinear calculations, sandwich structures and composite plate vibration are planned or under development.

Easy laminate build-up

  • mouse-controlled laminate build-up
  • can be modified at will
  • easy input of symmetrical laminates
  • build-up apparent at all times

Laminatinformationen

  • ABD-Matrix in Tabellenform (kopierbar)
  • inverse ABD-Matrix in Tabellenform (kopierbar)
  • Ingenieurskonstanten
  • Hygrothermale Eigenschaften

Composite calculation

  • ABD-matrix
  • strains and stress resultants
  • thermal and hygroscopic effects
  • layerwise local strains and stresses
  • factor of safety for each ply including failure mode
  • export

Stability

  • for symmetrical laminates (D16, D26 ≠ 0 as well)
  • bending-twisting coupling terms D16, D26 can be set to zero for comparison with analytical solutions
  • rectangular plate with arbitrary boundary conditions (hinged, clamped, free)
  • all in-plane loads (nx, ny, nxy)
  • maximum number of half waves adjustable between 1 and 20
  • consideration of stiffeners
  • 3D-display of buckling modes
  • png export

Deformation

  • for symmetrical laminates (auch D16, D26 ≠ 0)
  • rectangular plate with arbitrary boundary conditions (hinged, clamped, free)
  • constant surface pressure on the entire plate domain
  • maximum number of half waves adjustable between 1 and 20
  • consideration of stiffeners
  • 3D-display of deflection
  • local stresses and strains of each layer as contour plot
  • visualization of failure locations
  • png export

Failure criteria

  • 3D display (Puck, ZTL, Hashin, Tsai-Wu, Mat58-LS-Dyna, max. stress, Cuntze, Edge, Rotem, Sun, Mayes)
  • for arbitrary strength values
  • superposed display possible
  • raw data export
  • png export

Failure body for composite laminates

  • 3D display of laminate failure body using first ply failure criterion (Puck, ZTL, Hashin, Tsai-Wu, Mat58-LS-Dyna, max. stress, Cuntze, Edge, Rotem, Sun, Mayes)
  • for arbitrary strength values
  • for self-defined laminates
  • raw data export
  • png export

Export

  • LS-Dyna (Mat22, Mat54, Mat55, Mat58)
  • Ansys
  • Nastran
  • Abaqus

Polar plot of the laminate stiffness properties

  • polar plot of A11, A12, A22 und A16
  • each component can be disabled
  • png export
  • raw data export

Material Data Base

  • material information for different fibre-matrix combinations
  • material properties from different literature

Plugins/AutoUpdates

  • Patches and Bugfixes are automatically installed
  • Enable/Disable plugins

Custom number formats

  • all number formats can be customized
  • different unit systems possible

Multilingual

  • OS system language is used by default
  • englich, german are supported

Contact persons

Mail an andreas.hauffe@tu-dresden.deandreas.hauffe@tu-dresden.de
Mail an martin.raedel@tu-dresden.demartin.raedel@tu-dresden.de

System requirements

  • Java 1.7 pre-installed (Link)
Last modified: 10.07.2014 10:22
Author: Andreas Hauffe

Dates
25.07.2014, 14:00 Uhr
01.08.2014, 14:00 Uhr
04.12.2014 - 05.12.2014
Contact

Head of Aircraft Engineering
Prof. Dr.-Ing. Klaus Wolf

Secretary
Catrin Mühlfriedel
Phone: +49 351 463-36694
Fax: +49 351 463-37263
Mail an luftfahrzeugtechnik@tu-dresden.deluftfahrzeugtechnik@tu-dresden.de


Office:
Marschner Straße 32,
Room 317


Mail to:
TU Dresden
Institut für Luft- und Raumfahrttechnik
Lehrstuhl für Luftfahrzeugtechnik
01062 Dresden
Germany

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TU Dresden
Institut für Luft- und Raumfahrttechnik
Lehrstuhl für Luftfahrzeugtechnik
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01069 Dresden
Germany