Essays about: "Delamination"

Showing result 26 - 30 of 63 essays containing the word Delamination.

  1. 26. A method for extracting delamination zones and deformation quantities of paperboard during folding

    University essay from Lunds universitet/Matematik LTH

    Author : Shan Langlais; [2019]
    Keywords : liquid paperboard package; continuum mechanics; optical flow; deformation gradient; strain; delamination; folding; image analysis; Mathematics and Statistics;

    Abstract : Denna studie har genomförts på Tetra Pak för att studera deformation i vätskekartong under vikning. När en förpackning formas i fyllmaskinerna viks kartongen enligt biglinjerna. Det finns ett stort intresse av att studera vikprocessen då den är avgörande för den slutgiltiga kvaliteten av förpackningen. READ MORE

  3. 27. Investigation of Metallic Dust formed on Steel Substrates in Solar Cell Sputtering Chambers

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Jakob Friberg; [2019]
    Keywords : Sputtering; iron selenide; CIGS; solar cell; dust;

    Abstract : Investigations have been done as of why dust particles appear in a circular pattern on the backside of solar cells produced in sputtering chambers at Midsummer AB. An experimental approach was conducted, where solar cells were produced at standard conditions and their backside studied by material analytical methods. READ MORE

  4. 28. Simulation of Paperboard with the EBT Paperboard Model and Cohesive Zones

    University essay from Lunds universitet/Hållfasthetslära; Lunds universitet/Institutionen för byggvetenskaper

    Author : Maria Anghel; [2019]
    Keywords : FEM; FEA; computer simulation; solid mechanics; paperboard; Technology and Engineering;

    Abstract : Previous numerical investigations have simulated the delamination of paperboard using various mechanical and cohesive models. This has given satisfactory agreement between the simulation results and experimental data when comparing force-depth curves during creasing and moment-angle curves during folding. READ MORE

  5. 29. Study of defects in PV modules : UV fluorescence and Thermographic photography for Photovoltaics (PV) Field Application

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Sophie Nylund; Zahra Barbari; [2019]
    Keywords : UV fluorescence; IR thermography; defects in PV modules; delamination; discoloration; hotspots; snail trails; cracks; fault in bypass diode; non-functioning cell in PV;

    Abstract : For a PV plant it is of fundamental importance that the operation of the PV modules is free from faults or at least that the faults can be detected early, to ensure efficient electricity production. Some defects such as cracks can be seen in visible light while microcracks and damage to the silicon material can only be seen through special lighting. READ MORE

  6. 30. Study of delamination of composite hat skin stringer interface failure

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Rajkumar Rajamanickam; [2019]
    Keywords : Delamination; Cohesive Zone Model; Skin-Stringer; Composite modelling; ABAQUS; Interface failure;

    Abstract : The use of composite materials brought a tremendous breakthrough in the scientific world of aerospace engineering. The lack of understanding of the failure of composite materials can be disastrous. Composite laminated structures need to be thoroughly studied and investigated in the design stage. READ MORE