Sökning: "HFMI"

Hittade 4 uppsatser innehållade ordet HFMI.

  1. 1. Fatigue strength assessment of post weld improved welded joints

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Veronika Nerbe; [2023]
    Nyckelord :Mechanics; solid mechanics; lightweight structures; hfmi; weld; Mekanik; hållfasthetslära; lättkonstruktioner; hfmi; svets;

    Sammanfattning : In this thesis work a literature survey is done to collect published data for T-welded joints with a thickness of 5-12 mm, produced in high strength steel and treated with HFMI. In addition to this, large structures are researched. LÄS MER

  3. 2. Life extension of welded steel details in bridges

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Zhelei Jin; [2023]
    Nyckelord :Welded joints; Fatigue; Pre-fatigue; Life extension; Fracture mechanics; Finite element analysis; HFMI; ; Svetsade fogar; utmattning; förutmattning; livsförlängning; frakturmekanik; finit elementanalys; HFMI; ;

    Sammanfattning : High-Frequency Mechanical Impacts (HFMI) is a surface treatment technique utilized to introduce residual stresses and extend the service life of structures. This project primarily focuses on studying the life extension effects of HFMI on welded structures that have undergone fatigue and have existing cracks. LÄS MER

  4. 3. Economic and technic aspects on post-weld treatment of welded structures exposed to fatigue loads

    Master-uppsats, KTH/Industriell produktion

    Författare :Johan Ankre; [2021]
    Nyckelord :;

    Sammanfattning : It has been known for a long time that we live on a planet with a limited stock of resources. The world population is increasing, more products are being produced and humans are consuming more in a lifetime than the planet can recover. It is a constant competition between industries to keep their prices down and get consumers to buy their product. LÄS MER

  5. 4. Fatigue and Ultimate StrengthAssessment of Post Weld TreatedStrenx 1100 Plus Butt Welds

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Tobias Jonsson; [2020]
    Nyckelord :;

    Sammanfattning : The demand of stronger and lighter constructions are rapidly growing. Today's applications vary over a large range industries where the requirements are di_erent from product to product. Therefore, the focus of much research are the 3rd generation of so called Advance High-Strength Steels (AHSS). LÄS MER