通常,我们输出单元应力应变的时候,默认的是单元积分点上的,但是有的时候我们可能会需要中点、节点的值,那么可以通过参数的选取简单的实现这个要求,而不需要自己去编制小程序去进行插值了(因为我曾经就遇到过这个问题).方法如下,仅供大家参考:
Set POSITION=AVERAGED AT NODES if the values being printed are the averages of values extrapolated to the nodes of the elements in the set. Since variables may be discontinuous between elements with different properties, ABAQUS/Standard breaks the output into separate tables for different element property definitions within the element set specified. ABAQUS/Standard will also output elements of differing types separately. Thus, averaging will occur only over elements that contribute to a node that have the same type.
Set POSITION=CENTROIDAL if values are being printed at the centroid of the element (the centroid of the reference surface of a shell element, the midpoint between the end nodes of a beam element).
Set POSITION=INTEGRATION POINTS (default) if values are being printed at the integration points at which the variables are actually calculated.
Set POSITION=NODES if the values being written are extrapolated to the nodes of each element in the set but not averaged at the nodes.