简介:Verticalwallsurfaceformingofrectangularshellusingmultistageincrementalformingwithsphericalandcylindricalrollers;Apredictionofburstingfailureintubehydroformingprocessesbasedonductilefracturecriterion;Anapproximationmodelofcontactstatebetweenrollandstrand-computationofthree-dimensionaldeformationbehaviorofcontinuouslycaststeelstrandinmultirollspansI;Analysisofhydraulicformingprocessfornoncirculartube;AnalysisofhydrostatictubebulgingwithcylindricaldieusingstaticexplicitFEM;CTRimprovesperformance:managementtoolhelpsmanufacturesgettheirproductsintocustomer'shandsquickly
简介:<正>在公交车上,由于拥挤一男一女发生了碰撞。女子回头飞眼道:"你有病啊?"男子觉得莫名其妙回道:"你有药吗?"车上人窃笑!女子觉得生气回道:"你有精神病啊?"男子冷面对道:"你能治啊?"全车人爆笑!公交司机停车,趴在方向盘上大笑!
简介:在桩基础施工领域,由于节能、环保、效率的要求,设备性能直接影响市场的占有率,为提高产品性能,采用查找文献,分析对比等方法,研究市场现有挤扩钻具挤扩桩机及挤扩桩成桩工法,查找改进方法,为生产更加节能环保高效的设备提供方案。