I recall long ago, someone mentioned a way to do a simple, poor-mans impact
analysis instead of doing an explicit LS-Dyna solution. It involved running
a static solution in ANSYS using a unit load force or pressure applied in
the manner you expect the impact to occur. Then you scale the results by
ratioing the strain energy to the kinetic energy of the impacting object.
It's conservative because it assumes all the energy of the impact is
absorbed by the structure.
Sounds reasonable and conservative, but I'm struggling to find a way to
relate the strain energy of an arbitrary structure to the kinetic energy I
calculate. Any ideas?
Joseph T Metrisin
Structures Lead
Florida Turbine Technologies, Inc
1701 Military Tr. Suite 110 | Jupiter, FL 33458 USA
+1 (561) 427-6346 Office | +1 (772) 834-4156 Mobile
mailto:Joe.Metrisin@kratosdefense.com Joe.Metrisin@kratosdefense.com
Visit our website: https://kratosdefense.com/ https://kratosdefense.com
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Hi Joe,
I would recommend to have a look on my paper below in which we produce an
“equivalent” static loading methodology for the impact problem of printed
circuit boards. I’m not exactly sure if it exactly fits with your ambitions
but you might find it useful.
https://www.sciencedirect.com/science/article/abs/pii/S0026271422003663
Please let me know if you have any questions.
Best,
MG
---====
Mohammad A Gharaibeh, Ph.D.
Associate Professor
Department of Mechanical Engineering
The Hashemite University
P.O. Box 330127
Zarqa, 13133, Jordan
Tel: +962 - 5 - 390 3333 Ext. 4771
Fax: +962 - 5 - 382 6348
---====
On Thu, 16 May 2024 at 4:38 PM Joe Metrisin via Xansys <
xansys-temp@list.xansys.org> wrote:
I recall long ago, someone mentioned a way to do a simple, poor-mans impact
analysis instead of doing an explicit LS-Dyna solution. It involved
running
a static solution in ANSYS using a unit load force or pressure applied in
the manner you expect the impact to occur. Then you scale the results by
ratioing the strain energy to the kinetic energy of the impacting object.
It's conservative because it assumes all the energy of the impact is
absorbed by the structure.
Sounds reasonable and conservative, but I'm struggling to find a way to
relate the strain energy of an arbitrary structure to the kinetic energy I
calculate. Any ideas?
Joseph T Metrisin
Structures Lead
Florida Turbine Technologies, Inc
1701 Military Tr. Suite 110 | Jupiter, FL 33458 USA
https://www.google.com/maps/search/1701+Military+Tr.+Suite+110+%7C+Jupiter,+FL+33458+USA?entry=gmail&source=g
+1 (561) 427-6346 Office | +1 (772) 834-4156 Mobile
mailto:Joe.Metrisin@kratosdefense.com Joe.Metrisin@kratosdefense.com
Visit our website: https://kratosdefense.com/ https://kratosdefense.com
Confidentiality Note:
The information contained in this transmission and any attachments are
proprietary and may be privileged, intended only for the use of the
individual or entity named above. If the reader of this message is not the
intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly prohibited. If
you received this communication in error, please delete the message and
immediately notify the sender via the contact information listed above.
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