Sökning: "Zenkert"

Visar resultat 1 - 5 av 26 avhandlingar innehållade ordet Zenkert.

  1. 1. Residual Stress Analysis and Fatigue Assessment of Welded Steel Structures

    Författare :Zuheir Barsoum; Jack Samuelsson; Dan Zenkert; Stephen Maddox; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; fatigue failure; welding; weld defects; welded joints; stress concentration; residual stress; linear elastic fracture mechanics; welding simulation; finite element analysis; fatigue crack growth.; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : This doctoral thesis is concerned with fatigue life of welded structures. Several topics related to fatigue of welded structures are treated such as; weld defects and their influence on fatigue performance of welded structures, fatigue life prediction using LEFM (Linear Elastic Fracture Mechanics), fatigue testing, welding simulation, residual stress prediction and measurement and their influence on fatigue life. LÄS MER

  2. 2. Design of Multifunctional Body Panels for Conflicting Structural and Acoustic Requirements in Automotive Applications

    Författare :Christopher John Cameron; Dan Zenkert; Peter Göransson; Per Wennhage; Henry Rice; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik; Construction engineering; Konstruktionsteknik;

    Sammanfattning : Over the past century, the automobile has become an integral part of society, with vastincreases in safety, refinement, and complexity, but most unfortunately in mass. Thetrend of increasing mass cannot be maintained in the face of increasingly stringentregulations on fuel consumption and emissions. LÄS MER

  3. 3. Design of Multifunctional Body Panels in Automotive Applications : Reducing the Ecological and Economical footprint of the vehicle industry

    Författare :Christopher John Cameron; Dan Zenkert; Peter Göransson; Per Wennhage; Per-Olof Sturesson; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sandwich panels; mutifunctional; structural acoustic interaction; NVH; vehicle acoustics; Vehicle engineering; Farkostteknik;

    Sammanfattning : Over the past century, the automobile has become an integral part of modern industrializedsociety. Consumer demands, regulatory legislation, and the corporate need togenerate a profit, have been the most influential factors in driving forward the evolutionof the automobile. LÄS MER

  4. 4. Physically Based Engineering Models for NCF Composites

    Författare :Fredrik Edgren; Dan Zenkert; Michael WIsnom; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction engineering; Konstruktionsteknik;

    Sammanfattning : Non-Crimp Fabrics - NCF – are increasingly being used as reinforcements in high performance composite materials. NCF offer the manufacturing advantages from textile preforms in combination with excellent mechanical performance. This study concerns the mechanical performance of NCF composites. LÄS MER

  5. 5. Multi-fastener single-lap joints in composite structures

    Författare :Johan Ekh; Dan Zenkert; Michael McCarthy; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik;

    Sammanfattning : This thesis deals with composite joints. Designing such joints is more difficult than metallic joints due to the mechanical properties of composite materials. Composites are anisotropic and have a limited ability of yielding. LÄS MER