6533b820fe1ef96bd127a3cc
RESEARCH PRODUCT
Expected principal stress directions under multiaxial random loading. Part I: theoretical aspects of the weight function method
Andrea SpagnoliE. MachaAndrea CarpinterilRoberto Brighentisubject
Weight functionMaterials scienceContinuum mechanicsbusiness.industryMechanical EngineeringMathematical analysisPrincipal (computer security)Work (physics)Fracture mechanicsStructural engineeringStrength of materialsIndustrial and Manufacturing EngineeringEuler anglessymbols.namesakeMechanics of MaterialsPosition (vector)Modeling and SimulationsymbolsGeneral Materials Sciencebusinessdescription
As has been observed experimentally by many authors, the position of the fatigue fracture plane appears to strongly depend on the directions of the principal stresses or strains. In Part I of the present work the expected principal stress directions under multiaxial random loading are theoretically obtained by averaging the instantaneous values of the three Euler angles through some suitable weight functions which are assumed to take into account the main factors influencing fatigue behaviour. Then, in Part II, it is examined how such theoretical principal directions determined by applying the proposed procedure are correlated to the position of the experimental fracture plane for some fatigue tests reported in the literature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-01-01 | International Journal of Fatigue |