Sökning: "Impact Testing"

Visar resultat 21 - 25 av 491 avhandlingar innehållade orden Impact Testing.

  1. 21. Defects in E-PBF Ti-6Al-4V and their Effect on Fatigue Behaviour : Characteristics, Distribution and Impact on Life

    Författare :Viktor Sandell; Marta-Lena Antti; Pia Åkerfeldt; Thomas Hansson; Hans Andersson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Defects; Additive Manufacturing; Ti-6Al-4V; Probabilistic Modelling; Fatigue; Materialteknik; Engineering Materials;

    Sammanfattning : Layer by layer manufacturing (additive manufacturing, AM) of metals is emerging as an alternative to conventional subtractive manufacturing with the goal of enabling near net-shape production of complex part geometries with reduced material waste and shorter lead times. Recently this field has experienced rapid growth through industrial adaptation but has simultaneously encountered challenges. LÄS MER

  3. 22. FROM SOCIETAL TO ORGANISATIONAL CULTURE : THE IMPACT ON BUSINESS-IT ALIGNMENT

    Författare :Mohamed Sobaih El-Mekawy; Lazar Rusu; Erik Perjons; Mathias Ekstedt; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Business-IT alignment; Organisational culture; Strategic alignment maturity model; Design science research.; informationssystem; Information Systems;

    Sammanfattning : Business-IT alignment (BITA) has clearly become more important over the last decade. However, considerable difficulties remain when attempting to achieve a mature level of BITA. LÄS MER

  4. 23. Rethinking Social Impact Assessment through Urban Design: Towards designerly evaluation with a socio-form approach

    Författare :Joanna Gregorowicz-Kipszak; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SIA; analysis; transversality; SOCIO-FORM approach; research through design; built form; the social; urban design; space of possibilities; assessment; social impact; knowledge hub;

    Sammanfattning : Tools for assessing the social impact of urban designs are being developed internationally and in Swedish municipalities. While methodological development is underway, a theoretical discussion about the implications of urban design on social impact assessment (SIA) and its critical potential is rare, leading to the situation whereby much SIA is instrumental and might act against reinforcing and improved integration of the social dimension into the practice of urban planning and design. LÄS MER

  5. 24. Detection and 3-D positioning of small defects using digital radiography, 3-D point reconstruction, and tracking

    Författare :Erik Lindgren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pore Defects; Radiographic Testing; Nondestructive Evaluation; Laser Welded Titanium; Multiple Hypothesis Tracking; X-ray Testing;

    Sammanfattning : The weight and quality concerned aero industry is constantly trying to decrease the excess material in their components. With decreased weight the fuel consumption can be lowered and the negative environmental effects from aviation decreased. LÄS MER

  7. 25. Testability of Dynamic Real-Time Systems

    Författare :Birgitta Lindström; Sten F. Andler; Jeff Offutt; Paul Pettersson; Zebo Peng; Lionel Briand; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Testability; Software testing; Real-time systems; Timeliness; Model-based testing; Computer science; Datalogi; Teknik;

    Sammanfattning : This dissertation concerns testability of event-triggered real-time systems. Real-time systems are known to be hard to test because they are required to function correct both with respect to what the system does and when it does it. LÄS MER