简介:ThehigherorderasymptoticfieldsatthetipofasharpV-notchinapower-hardeningmaterialforplanestrainproblemofModeⅠarederived.Theorderhierarchyinpowersofrforvarioushardeningexponentsnandnotchanglesβisobtained.Theangulardistributionsofstressforseveralcasesareplotted.Theself-similaritybehaviorbetweenthehigherordertermsisnoticed.ItisfoundthatthetermswithhigherordercanbenegleetedfortheV-notchangleβ>45°.
简介:InallthearticlesinActaMechanicaSolidaSinica,Volume31,Issues1-4thecopyrightisincorrectlydisplayedas"TheChineseSocietyofTheoreticalandAppliedMechanicsandTechnology"whereitshouldbe"TheChineseSocietyofTheoreticalandAppliedMechanics".
简介:Thepresentworkisconcernedwithapenny-shapedDugdalecrackembeddedinaninfinitespaceofone-dimensional(1D)hexagonalquasicrystalsandsubjectedtotwoidenticalaxisymmetrictemperatureloadingsontheupperandlowercracksurfaces.ApplyingDugdalehypothesistothermo-elasticresults,theextentoftheplasticzoneatthecracktipisdetermined.Thenormalstressoutsidetheplasticzoneandcracksurfacedisplacementarederivedintermsofspecialfunctions.Forauniformloadingcase,thecorrespondingresultsarepresentedbysimplifyingtheprecedingresults.Numericalcalculationsarecarriedouttoshowtheinfluenceofsomeparameters.