Search for dissertations about: "service life calculations"

Showing result 6 - 10 of 22 swedish dissertations containing the words service life calculations.

  2. 6. Nitrogen and Water in High Temperature Corrosion - Insights from First Principle Calculations

    Author : Vedad Babic; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; DFT; alumina; nitridation; corrosion; chromia; hydrogen;

    Abstract : Service life-time of alloys used in high temperature applications is often limited by corrosion. FeCrAl(Re) alloys are partially designed to form a protective α-alumina oxide scale at elevated  temperatures in order to mitigate further oxidation. READ MORE

  4. 7. Very high cycle fatigue of duplex stainless steels and stress intensity calculations

    Author : Muhammad Waqas Tofique; Jens Bergström; Nils Hallbäck; Anders Gåård; Johan Moverare; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Very high cycle fatigue; duplex stainless steel; ultrasonic fatigue testing; distributed dislocation dipole technique; Materialteknik; Materials Engineering;

    Abstract : Very high cycle fatigue (VHCF) is generally considered as the domain of fatigue lifetime beyond 10 million (107) load cycles. Few examples of structural components which are subjected to 107-109 load cycles during their service life are engine parts, turbine disks, railway axles and load-carrying parts of automobiles. READ MORE

  5. 8. Fatigue assessment of riveted bridges

    Author : Tobias Larsson; Mohammad Al-Emrani; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Abstract : The majority of the railways used today were built in the beginning of the 20th century. Most of the bridges constructed at that time are still in service. READ MORE

  6. 9. An Approach to Business Modeling for Sustainable Personal Road Transport

    Author : Lisiana Nurhadi; Tobias Larsson; Henrik Ny; Erik Sundin; Blekinge Tekniska Högskola; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Business Modelling; Sustainable Transport;

    Abstract : Between 1950 and 2013 the total amount of Swedish travelling has increased from about 20 billion to about 140 billion passenger kilometers. This included an increase in travelling with private cars from about 3 billion to about 105 billion passenger kilometers, and in bus travelling from about 2.5 billion to about 5 billion passenger kilometers. READ MORE

  7. 10. Time-dependent effects in the analysis and design of slender concrete compression members

    Author : Bo Westerberg; Jonas Holmgren; Sven Thelandersson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Building engineering; Byggnadsteknik;

    Abstract : The report deals with the effect of time-dependent concrete properties in the analysis and design of slender compression members. The main focus is on how to take these effects into account in nonlinear analysis, not on the properties as such in a materials science perspective. READ MORE