Essays about: "creep"

Showing result 16 - 20 of 113 essays containing the word creep.

  1. 16. Micromechanical modelling of creep in wooden materials

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Oskar Falkeström; Kevin Coleman; Malin Nilsson; [2021]
    Keywords : Creep; RVE; Homogenization; Honeycomb; Tracheid; Comsol Multiphysics; Micromechanical modelling; Orthotropic; Parametric study; S2 material; Norwegian Spruce; Scots Pine; Cell geometry;

    Abstract : Wood is a complex organic orthotropic viscoelastic material with acellular structure. When stressed, wood will deform over timethrough a process called creep. Creep affects all wooden structureand can be difficult, time-consuming and expensive to measure. For this thesis, a simple computer model of the woodenmicrostructure was developed. READ MORE

  3. 17. Boxtemperaturens effekt på antalet avvanda smågrisar : en fältstudie under svenska förhållanden

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Fay Wharton; [2021]
    Keywords : Gris; sugga; grisning; kullnummer; box; temperatur; avvanda smågrisar;

    Abstract : Att maximera antalet avvanda smågrisar per sugga har blivit ett viktigt mål inom dagens svenska grisproduktion, men fortsatt stora problem med hög smågrisdödlighet utgör en utmaning för producenterna och har negativa konsekvenser för djurvälfärden. Temperatur är en miljöfaktor som kan inverka på smågrisdödligheten och som visat sig kunna variera mellan boxar i samma stall, men få studier har undersökt omgivningstemperaturens effekt på suggornas prestation under svenska produktionsförhållanden. READ MORE

  4. 18. Experimental acceleration Measurements and Finite Elements Modeling

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Ibrahim Alnimairi; Salim Arrabi; [2021]
    Keywords : signal processing. PSD; mode shapes; Mdof; Sdof; PSDT-SVD; finite element modelling;

    Abstract : Heavy crushing machines under their production shifts, creates various levels of vibration, noise and dynamic forces which can be transferred to other parts of the industrial unit. Such kind of factors applies continuous forces on machine parts which can cause gradual fatigue, creep and eventually failure of machine. READ MORE

  5. 19. Long term aging and creep exposure for advanced heat resistant alloys : A phase analysis

    University essay from Uppsala universitet/Institutionen för materialvetenskap; Uppsala universitet/Institutionen för kemi - Ångström

    Author : Daniel Lundberg; Filip Wilson; Hjalmar Gunnarsson; Leo Sjörén; Robin Xu; Erik Djurberg; [2021]
    Keywords : Austenitic stainless steel; ferritic steels; nickel based alloys; creep; ageing; XRD; SEM EDS; LOM;

    Abstract : This project was ordered by Sandvik Materials Technology and was performed by a group of students at Uppsala university. The purpose of the project was to study precipitation behavior and structure stability in six advanced heat resistant alloys. Each sample were subjected to a creep rupture test in 600 or 700°C depending on the alloy type. READ MORE

  6. 20. Subject-specific image analysis and computational modelling of the human Achilles tendon

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Johanna Panzar; Erika Thörn; [2021]
    Keywords : image analysis; Achilles tendon; FE model; biomechanics; CT image; Technology and Engineering;

    Abstract : Achilles tendon rupture is becoming more prevalent with an increasing population of middle aged people participating in recreational sports. A torn Achilles tendon will likely not regain its original function, and it is unknown what treatment options are optimal. READ MORE