A kinematically admissible continuous velocity field to the plane strain extrusion is established in cartesiancoordinates, and an upper - bound analytical solution is thus obtained in this paper.
本文采用直角坐标系建立了平面变形挤压问题的运动学许可连续速度场并获得了该问题的上解析限解。
2
Understand what the differences are between polar coordinates and the Cartesianplane.
了解之间的差异极坐标和直角平面。
3
In this paper, the incompatible displacement functions are constructed which possess completeness in Cartesiancoordinates. A pair plane quadrilateral isoparametric incompatible elements are given.