Sökning: "failure mechanisms"

Visar resultat 1 - 5 av 483 avhandlingar innehållade orden failure mechanisms.

  1. 1. Thermal Barrier Coatings : Failure Mechanisms and Life Prediction

    Författare :Krishna Praveen Jonnalagadda; Ru Lin Peng; Xin-Hai Li; Robert Eriksson; Nicholls John; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Thermal barrier coatings (TBCs) use in the hot sections of gas turbine engine enables them to run at higher temperatures, and as a consequence, achieve higher thermal efficiency. For full operational exploitation of TBCs, understanding their failure and knowing the service life is essential. LÄS MER

  3. 2. Failure mechanisms in continuous fiber systems

    Författare :Jonas Neumeister; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; volume dependence; representative volume element; stress recovery; creep rupture; fiber fragmentation; tensile and flexural strength; brittle matrix composite; damage; fiber bundle; bundle pullout; failure propagation time; incubation time;

    Sammanfattning : .... LÄS MER

  4. 3. Complement Activation Triggered by Biomaterial Surfaces : Mechanisms and Regulation

    Författare :Jonas Andersson; Bo Nilsson; Hans Elwing; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; Biomaterials; Biocompatibility; Blood; Complement; Immunologi; Immunology; Immunologi; klinisk immunologi; Clinical Immunology;

    Sammanfattning : Today there are a vast number of medical devices in temporary or permanent contact with human tissues. Blood-biomaterial contact is known to trigger the complement system and results in generation of fluid phase anaphylatoxins C3a and C5a, and surface-bound C3b and iC3b. LÄS MER

  5. 4. Macroscale Modelling of 3D-Woven Composites: Inelasticity, Progressive Damage and Final Failure

    Författare :Carolyn Oddy; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D-woven composites; Anisotropy; Damage; Inelasticity; Phase-field; Failure;

    Sammanfattning : Composites with 3D-woven reinforcement have been slowly making their way into different industrial applications. The interlacement of yarns, not only in-plane but also through-thickness, means that in many applications 3D-woven composites can outperform their laminated counterparts. LÄS MER

  7. 5. Philosophical controversies in the evaluation of medical treatments : With a focus on the evidential roles of randomization and mechanisms in Evidence-Based Medicine

    Författare :Alexander Mebius; John Cantwell; Jeremy Howick; Sven Ove Hansson; Julian Reiss; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HUMANIORA; HUMANITIES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Evidence; randomized controlled trials; observational studies; systematic reviews; meta-analysis; methodology; process assessment; outcome assessment; medical care; randomization; evidence-based medicine; selection bias; philosophy of medicine; philosophy of science; mechanisms; quality of evidence; animal studies; treatment effect; causation by absence; medical technology; Filosofi; Philosophy;

    Sammanfattning : This thesis examines philosophical controversies surrounding the evaluation of medical treatments, with a focus on the evidential roles of randomised trials and mechanisms in Evidence-Based Medicine. Current 'best practice' usually involves excluding non-randomised trial evidence from systematic reviews in cases where randomised trials are available for inclusion in the reviews. LÄS MER