Search for dissertations about: "damage evolution"

Showing result 6 - 10 of 142 swedish dissertations containing the words damage evolution.

  2. 6. Modelling Damage Evolution and Fracture of Paper Materials

    Author : Rickard Hägglund; Hållfasthetslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Paper material; Fracture mechanics; Tensile strength; Fibre network; Continuum damage mechanics; Non-local theory;

    Abstract : This thesis contains six papers dealing with different aspects of damage and fracture in paper. The work addresses the problem of material length scales in the context of deformation and fracture of paper materials. READ MORE

  4. 7. Oxidative damage and the DNA glycosylase MutYH

    Author : Kristina Jansson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Oxidative damage; 8-oxo-7; 8-dihydro-2′-deoxyguanosine; Base excision repair; DNA glycosylase; Mismatch repair; DNA damage checkpoint; 9-1-1 complex; Glutathione-S-transferases; Colon cancer.;

    Abstract : The DNA glycosylase MutYH is highly conserved throughout evolution, and homologs are found in most eukaryotes and prokaryotes examined. MutYH functions as a base excision repair DNA glycosylase that excises adenines misincorporated opposite 8-oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodG), one of the most stable products of oxidative DNA damage. READ MORE

  5. 8. Damage evolution in laminates with manufacturing defects

    Author : Yongxin Huang; Kristofer Gamstedt; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : In this thesis, experimental investigations and theoretical studies on the stochastic matrix cracking evolution under static loading in composite laminates with manufacturing defects are presented. The presented work demonstrates a methodology that accounts for the statistically distributed defects in damage mechanics models for the assessment of the integrity of composites and for the structural design of composites. READ MORE

  6. 9. Development of Energy-based Damage and Plasticity Models for Asphalt Concrete Mixtures

    Author : Ibrahim Onifade; Björn Birgisson; Linbing Wang; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy-based models; damage; X-ray computed tomography; continuum plasticity mechanics CPM; effective micro-crack stress; Transportvetenskap; Transport Science;

    Abstract : Characterizing the full range of damage and plastic behaviour of asphalt mixtures under varying strain-rates and stress states is a complex and challenging task. One reason for this  is partly due to the strain rate and temperature dependent nature of the material as well as the variation in the properties of the constituent materials that make up the composite asphalt mixture. READ MORE

  7. 10. Cancer Evolution under Chemotherapy Treatment

    Author : Kaname Uno; Cancercellers evolution; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ovarian cancer; Wilms tumor; chemotherapy resistance; ascites; spheroids; diffuse anaplasia;

    Abstract : Background: Chemotherapy resistance is a critical issue in oncology, being responsible for the majority of deaths in modern cancer care. My PhD work has focused on two cancer types where such drug resistance is a major clinical issue: epithelial ovarian cancer (EOC) and Wilms tumor (WT). READ MORE