Search for dissertations about: "damage growth"

Showing result 1 - 5 of 400 swedish dissertations containing the words damage growth.

  2. 1. Plasticity Driven Damage and Void Growth

    Author : Mattias Olsson; Kärnfysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Termisk teknik; termodynamik; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; Thermal engineering; applied thermodynamics; vibration and acoustic engineering; vacuum technology; hydraulics; void growth; Mechanical engineering; damage evolution; elasto-plasticity; thermodynamics;

    Abstract : Plasticity induced damage evolution is considered using a thermodynamical approach. Different postulates on how to include the effects of damage in the constitutive equations have been studied. The results reveal that a mapping, similar to that of the stress, of both the kinematic and isotropic hardening variables is to be preferred. READ MORE

  4. 2. Failure of Sandwich Structures with Sub-Interface Damage

    Author : Andrey Shipsha; KTH; []
    Keywords : sandwich structure; foam core; fatigue; crack growth; stress intensity factor; fatigue threshold; fracture toughness; damage tolerance; impact damage; crushed core; bridging; fracture analysis; point-stress criterion;

    Abstract : .... READ MORE

  5. 3. Helium Filled Bubbles in Solids : Nucleation, Growth and Swelling

    Author : Odd Runevall; Nils Sandberg; Charlotte Becquart; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Helium; Radiation Damage; DFT; molybdenum; MgO;

    Abstract : When nuclear fuel, fabricated for the purpose of transmuting spent fuel is irradiated, significant amounts of He is produced from alpha particles mainly emitted when 242Cm decays into 238Pu. From irradiation experiments it is known that the presence of He in the solids alters the swelling behaviour of the material. READ MORE

  6. 4. Hepatocyte growth factor : Studies on local and systemic release and effects during infectious disease; in vivo and in vitro

    Author : Fariba Nayeri; Minoca Niste'r; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : The interaction of mesenchymal and epithelial cells that occurs after organ injuries results in enhanced production of cytokines, such as hepatocyte growth factor (HGF). HGF is a glycoprotein with unique properties that contribute to wound healing after injuries. READ MORE

  7. 5. Ribonucleotide reductase and DNA damage

    Author : Pelle Håkansson; Lars Thelander; Claes Gustafsson; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ribonucleotide reductase; DNA damage; dNTP pools; Medical cell biology; Medicinsk cellbiologi;

    Abstract : A prerequisite for a multicellular organism to survive is the ability to correctly replicate and repair DNA while minimizing the number of heritable mutations. To achieve this, cells need a balanced supply of deoxyribonucleoside triphosphates (dNTPs), the precursors for DNA synthesis. READ MORE