Sökning: "intermediate principal stress"

Hittade 2 avhandlingar innehållade orden intermediate principal stress.

  1. 1. Wellbore stability analysis based on a new true-triaxial failure criterion

    Författare :Adel Al-Ajmi; Robert Zimmerman; Bernt Aadnoy; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; failure criteria; Mogi failure criterion; intermediate principal stress; polyaxial test data; wellbore stability; Geoengineering and mining engineering; Geoteknik och gruvteknik;

    Sammanfattning : A main aspect of wellbore stability analysis is the selection of an appropriate rock failure criterion. The most commonly used criterion for brittle failure of rocks is the Mohr-Coulomb criterion. LÄS MER

  3. 2. Associations between stress and hearing problems : epidemiological and experimental findings

    Författare :Martin Benka Wallén; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : It is well established that long-term stress without sufficient recovery can induce plastic changes in certain brain regions by suppressing neural growth or by retraction of dendrites 1-4. Many of these effects can be due to a dysregulation of the hypothalamic-pituitary-adrenal (HPA)-axis, which is the principal system controlling systemic stress response. LÄS MER