Search for dissertations about: "sheet metal fatigue"

Showing result 1 - 5 of 8 swedish dissertations containing the words sheet metal fatigue.

  1. 1. Fatigue crack growth in fiber metal laminates : experiment and modeling

    Author : Per Hofslagare; Michel van Tooren; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Fiber Metal Laminates (FML) is a class of materials with highly resistant fatigue behavior, developed primary for the aerospace industry. The laminates are comprised of alternating layers of high strength aluminwn sheet and fiber reinforced polymers. READ MORE

  2. 2. A study on wear characteristics of high strength steels under sliding contact

    Author : Abdulbaset Mussa; Pavel Krakhmalev; Jens Bergström; Jens Hardell; Karlstads universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; High strength steels; thread joint wear; punch wear; sliding wear; surface cracking; reciprocal sliding; fatigue; surface delamination; white etching layer; nano-structured layer; friction; Materialteknik; Materials Engineering;

    Abstract : In the last decades, significant improvements regarding the design, materials and technology of rock drills have been made. Likewise, in sheet metal forming, forming tools experience very high contact pressures when processing high strength steel sheets. READ MORE

  3. 3. Effect of fiber reinforcement on fatigue crack growth in fiber metal laminates

    Author : Per Hofslagare; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Fiber Metal Laminates (FML) are a class of materials with highly resistant fatigue behavior. developed primary for the aerospace industry. The laminates are comprised of alternating layers of high strength alurninum sheet and fiber reinforced polymers. READ MORE

  4. 4. Sheet metal trimming dies – characterisation methods of geometry and surface topography and the influence on wear

    Author : Per Jonsson; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finish milling; wear measurement; functional surface; trimming dies; scale-sensitive fractal analysis; surface roughness; polishing; surface characterisation; high strength steel; tool wear;

    Abstract : In recent years, the life cycle of car models has decreased from 7 to 5 years and the volume sizes are becoming shorter in the automotive industry. The increasing number of car models introduced to the market means that a fewer number of parts must pay the costs for the tool/die design and manufacturing. READ MORE

  5. 5. Simulation of metal forming processes including impact on product performance

    Author : Torbjörn Lindbäck; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Abstract : This thesis deals with finite element simulation of manufacturing processes. The aim of the research was to improve the product development process by providing engineers with methods and tools to enable efficient manufacturing simulations . The focus of the work is forming processes such as rail manufacturing and sheet metal forming. READ MORE