Search for dissertations about: "fatigue crack growth"

Showing result 1 - 5 of 76 swedish dissertations containing the words fatigue crack growth.

  1. 1. High Strain Fatigue Crack Growth and Crack Closure

    University dissertation from Department of Mechanical Engineering, Lund University

    Author : Michael Andersson; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materialteknik; Materiallära; Material technology; crack closure; high strain fatigue; crack grotwh;

    Abstract : Understanding of the growth of fatigue cracks is of utmost importance since such growth often has a profound influence on the life of components subjected to cyclic loading. Thus, reliable fatigue life models enable a more efficient use of materials and improve the performance and efficiency in many applications. READ MORE

  2. 2. Numerical Modelling of Short Fatigue Crack Growth

    University dissertation from Department of Mechanical Engineering, Lund University

    Author : Per Hansson; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; discrete dislocation; Fatigue; grain boundary; short crack;

    Abstract : Fatigue implies repeated loading and unloading of a structure, and components subjected to fatigue might experience nucleation of cracks, and subsequent crack propagation. This might lead to catastrophic consequences, such as complete failure of a structure. READ MORE

  3. 3. Failure of thermal barrier coatings under thermal and mechanical fatigue loading : microstructural observations and modelling aspects

    University dissertation from Linköping : Linköpings universitet

    Author : Håkan Brodin; Linköpings universitet.; Linköpings universitet.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal barrier coating; TBC; delamination; crack initiation; crack propagation; crack growth; oxidation; alumina; spinel; MCrAIY; diffusion; fatigue; modelling; modeling; degradation; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Industrial and air-borne gas turbine hot components suffer from creep, oxidation, corrosion and microstructural degradation if not shielded from the hot and aggressive combustion gases. Two major strategies commercially available are adopted; film cooling by pressurised air and application of protective coatings. READ MORE

  4. 4. Very high cycle fatigue of high performance steels

    University dissertation from Karlstad : Karlstad University

    Author : Vitaliy Kazymyrovych; Karlstads universitet.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Materials Engineering; fatigue; tool steels; ultrasonic testing; fatigue life; crack growth rate; fatigue mechanisms;

    Abstract : Many engineering components reach a finite fatigue life well above 109 load cycles. Some examples of such components are found in airplanes, automobiles or high speed trains. For some materials the fatigue failures have lately been found to occur well after 107 load cycles, namely in the Very High Cycle Fatigue (VHCF) range. READ MORE

  5. 5. Engineering aspects of fatigue crack growth in metal

    University dissertation from Stockholm : Hållfasthetslära

    Author : Tomas Månsson; KTH.; [2002]
    Keywords : Crack closure; FE-metod; Variable amplitude loading; Fatigue crack propagation.;

    Abstract : .... READ MORE