HyperView应力显示解释.doc

HyperView应力显示解释.docNodal Averag ing of Eleme ntal Results
Nodal averag ing of eleme ntal results at a node refers to the average of all the eleme nt corner results passing through that no corner results are available for an eleme nt, cen troidal results will be used calculate the no dal average. n the example figure below, four eleme nts are pass ing through Node 400. The average results at Node 400 is equal to:
A24BUC3 + D4
whe n Use corner data is tur ned on.
A -f B + C + D
whe n Use corner data is turned off.
Nodal averag ing opti ons are selected from thAveraging metho(firop-dow n menu on the Contour an d Iso Value pan els. The opti ons are:
Simple
Advaneed
Differe nee 如果取none,就是对计算结果不进行光滑处理。
女口果取 average，有 simple,advaneed 等几种方法，其中 simple 禾口 advanee的结果差异非常小， differenee 的应力结果通常会比
simple,advanee 的要大一些， 一般使用simple就可以了。
取平滑和不取平滑，应力结果差别比较大，但对位移结果没有什么影 响。
通常情况下，把应力结果进行光滑后，应力值会下降一些。
在实际工作中，通常都是取光滑后的应力结果， 这样的结果更接近结
构的真实受力。
Simple averag ing means that ten sor and vector comp onents are extracted and the in varia nts are computed prior to averagi ng. For comp onen ts, the eorresp onding comp onents from each eleme nt corner are extracted and the n they are averageldor in varia nts, the corresp onding inv aria nts are calculated from each ten sor at the eleme nt corners and the n averaged.
For example, as show n inNodal Averag ing of Eleme ntal Results there are four tensors, [A2], [B1], [C3], and [D4] at four corners at Node 400.
Where, MfiC .fell RC .閃 RC 航[M] rc are ten sors tran sformed to the
The average of the xx comp onent at Node 400 i
For the average of an in varia nt such as von Mises, the von Mises value for all tensor
Where, MfiC .fell RC .閃 RC 航[M] rc are ten sors tran sformed to the
[A2], [B1], [C3] , and [D4] are computed, then they are averaged as follows:
阳如曜也％ngJ叫药s
The averaging methods for solid elements and shell elements are different.
Adva need averag ing mea ns that ten sor (or vector) results are tran sformed