home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.engr.mech
- Path: sparky!uunet!usc!sdd.hp.com!news.cs.indiana.edu!noose.ecn.purdue.edu!ecn.purdue.edu!luj
- From: luj@ecn.purdue.edu (John Lu)
- Subject: Re: Is there a continuity equation in elasticity
- Message-ID: <1992Jul25.221303.15864@noose.ecn.purdue.edu>
- Sender: luj@ecn.purdue.edu (Jun Lu)
- Reply-To: luj@ecn.purdue.edu
- Organization: Purdue University Engineering Computing Network
- References: <14qp5fINNoqg@agate.berkeley.edu>
- Date: Sat, 25 Jul 1992 22:13:03 GMT
- Lines: 20
-
- In article <14qp5fINNoqg@agate.berkeley.edu>, jtrsmith@garnet.berkeley.edu writes:
- |> Subject: Is there a continuity equation in elasticity?
- |> Hi,
- |> I have a question on the governing equations of solid mechanics:
- |> Do we have continuity equation of mass in solid mechanics?
-
- Yes, by the law of the conservation of mass.
-
- |> Or it is not necessary, or is it implied in other governing equations?
- |>
-
- However, in _solid_ mechanics the mass does not flow away
- and one usually keep track of all the particles(Lanrangian method),
- the "continuity" eqn in the sense of fluid mechnics is trivially satisfied.
- In other words, it is not necessary to explicitly establish the trivial
- continuity equation in solid mechanics.
-
- --
- -- John Lu
- luj@ecn.purdue.edu
-