作者: Rumman Ul Ahsan , Protyasha Prachurja , Abu Raihan Mohammad Ali , Mohammad Arif Hasan Mamun
DOI: 10.3329/JNAME.V10I1.13675
关键词: Stress distribution 、 Mathematics 、 Torsion (mechanics) 、 Elliptic geometry 、 Structural engineering 、 Ellipse 、 von Mises yield criterion 、 Finite element method 、 Stress concentration
摘要: Stress concentration of structural members can be reduced considerably by the judicious choice elliptic shaped stress raisers like notch and groove. Substantial effort has been given numerous researchers to accurately measure effect such raisers, particularly semicircular An exhaustive bibliographical study proved that there is scope investigate further establish an alternative design criteria; concerning geometry. Computational method, primarily finite element method used analyze models under loading. This paper suggests use a modified shape which gives less when compared The ratio minor major half axes ellipse should between 0.3 0.4. introduction shoulder with groove even reduces concentration. results obtained from FEM analysis propose optimal values geometrical parameters. represents not only precise view distribution, but also develop charts designer for practical purposes. DOI: http://dx.doi.org/10.3329/jname.v10i1.13675