Essays about: "delaminering"

Showing result 6 - 10 of 11 essays containing the word delaminering.

  1. 6. Structural optimization of electronic packages using DOE

    University essay from KTH/Hållfasthetslära

    Author : Robin Johansson; [2020]
    Keywords : Design of experiments; DOE; Structural optimization; Electronic packages; DOE; Försöksplanering; Strukturoptimering;

    Abstract : The reliability of a mechanical system containing electronic packages is highly affectedby the environment the system is stationed in. The difference and fluctuationsbetween the ambient temperature and the operating temperature of the electronicpackage cause accumulation of inelastic strains in the package components thusdecreasing the service life. READ MORE

  3. 7. Numerical analysis of paperboard delamination using cohesive elements

    University essay from KTH/Hållfasthetslära

    Author : Markus Johansson-Näslund; [2020]
    Keywords : ;

    Abstract : A new test method for measuring the shear strength associated with mode III delamination of paperboard is studied with the purpose of reducing the size of the test configuration. The method, which uses a split cantilever beam (SCB) specimen, measures the shear strength indirectly through the fracture resistance. READ MORE

  4. 8. Temperature distribution and charring penetrations in timber assemblies exposed to parametric fire curves : Comparisons between tests and TASEF predictions

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand

    Author : Isac Andersson; Niklas Ek; [2017]
    Keywords : TASEF; Delamination; Timber beams; Parametric fire curves; Fire tests; Charring; Eurocode; TASEF; Delaminering; Träbalkar; Parametriska brandkurvor; Brandtester; Förkolning; Eurocode;

    Abstract : Four furnace tests have been performed using two different parametric fire curves and the results are compared with computer simulations and Eurocode calculations. What differentiates the parametric fire curve from other fire curves is in particular the cooling phase, something that has proven to be hard to model for timber structures. READ MORE

  5. 9. Temperature distribution and charring penetrations in timber assemblies exposed to parametric fire curves : Comparisons between tests and TASEF predictions

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand

    Author : Niklas Ek; Isac Andersson; [2017]
    Keywords : Fire; Delamination; Parametric fire curve; TASEF; Eurocode; Timber; Brand; Delaminering; Parametrisk brandkurva; TASEF; Eurocode; Trä;

    Abstract : Four furnace tests have been performed using two different parametric fire curves and the results are compared with computer simulations and Eurocode calculations. What differentiates the parametric fire curve from other fire curves is in particular the cooling phase, something that has proven to be hard to model for timber structures. READ MORE

  6. 10. Master thesis within light warhead for support weapon : Investigation of defects, methods and requirement specifications in order to get a shell body shatter free

    University essay from Karlstads universitet/Avdelningen för maskin- och materialteknik

    Author : Adam Jansson; [2016]
    Keywords : warhead; support weapon; shell body; shatter free; defect; method; carbon fibre; epoxy; crack; delamination; porosity; CFRP; CFRE; NDT; verkansdel; understödsvapen; granathylsa; splitterfri; defekt; metod; kolfiber; epoxi; spricka; delaminering; porositet; OFP;

    Abstract : At launching the shell body, especially the backplane of the shell body, will be exposed to very high stresses due to acceleration, pressure and increased temperature from the propellant combustion. Defects in the shell body could in worst case for example result in high temperature gas leakage into the warhead and thereby ignite the explosives before exiting the launcher. READ MORE