HOUR GLASS
HOUR GLASS
(OP)
Dear learned ones,
why do the tetrahedral solid and triangular shell elements doesnt have hourglass modes?
Thank you.
Prasannaah
why do the tetrahedral solid and triangular shell elements doesnt have hourglass modes?
Thank you.
Prasannaah





RE: HOUR GLASS
RE: HOUR GLASS
RE: HOUR GLASS
But please tell me why only LS DYNA has hourglass mode, in detail.
Thanks again.
RE: HOUR GLASS
RE: HOUR GLASS
RE: HOUR GLASS
what happens when hourglass is :applied during simulations?
: not applied during simulations?
RE: HOUR GLASS
what happens when hourglass is :applied during simulations?
: not applied during simulations?
Hourglass elements are a modelling error.
If you use hourglass elements in your analysis, your results WILL be erroneous (at least in the regions containing the hourglass elements).
If you don't have any hourglass elements in your analysis, your results MIGHT be OK. (To put it another way, a complete lack of hourglass elements is a necessary but not sufficient condition to ensure valid finite element modelling.)
If you don't understand why this is, your results are almost certainly meaningless!
http://julianh72.blogspot.com
RE: HOUR GLASS
RE: HOUR GLASS
RE: HOUR GLASS
htt
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: HOUR GLASS
RE: HOUR GLASS
but "hourglassing" due to loading (i guess it's the torsional mode of the quad (allowing one end to rotate relative to the other) isn't a good thing. i guess too these are membrane quads (not plate elements).
RE: HOUR GLASS
RE: HOUR GLASS
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RE: HOUR GLASS
http://julianh72.blogspot.com