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Showing result 1 - 5 of 16 swedish dissertations matching the above criteria.

  2. 1. Microstructural aspects of the ductile-to-brittle transition in pressure vessel steels

    Author : Torbjörn Narström; KTH; []
    Keywords : dectile-to-brittele transition; cleavage fracture; ductile fracture; fracture mechanics; constraint; initiation; pressure vessel steel; cleavage fracture stress;

    Abstract : .... READ MORE

  4. 2. Probabilistic and micromechanical modelling of cleavage fracture

    Author : Martin Kroon; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cleavage fracture; probabilistic; micromechanical; TECHNOLOGY; TEKNIKVETENSKAP; Maskinteknik;

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  5. 3. Micromechanical modeling of cleavage fracture in polycrystalline materials

    Author : Mateusz Stec; Jonas Faleskog; Andre Pineau; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cleavage fracture; probabilistic modeling; brittle to ductile transition; cohesive zone; visco-plastic material; Engineering mechanics; Teknisk mekanik; Other technology; Övriga teknikvetenskaper;

    Abstract : Cleavage fracture in ferritic steels can be defined as a sequence of few critical steps. At first nucleation of a microcrack takes place, often in a hard inclusion. This microcrack then propagates into the surrounding matrix material. The last obstacle before failure is the encounter of grain boundaries. READ MORE

  6. 4. Probabilistic modelling of cleavage fracture

    Author : Martin Kroon; KTH; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : .... READ MORE

  7. 5. The fracture mechanisms in duplex stainless steels at sub-zero temperatures

    Author : Johan Pilhagen; Pavel Korzhavy; Rolf Sandström; Kim Wallin; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Duplex stainless steel; Weldments; Delamination; Fracture toughness; Impact toughness; Cleavage fracture; Nickel;

    Abstract : The aim of the thesis was to study the susceptibility for brittle failures and the fracture process of duplex stainless steels at sub-zero temperatures (°C). In the first part of the thesis plates of hot-rolled duplex stainless steel with various thicknesses were used to study the influence of delamination (also known as splits) on the fracture toughness. READ MORE