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Science Forum Index » Mechanics Forum » In-situ stiffness and mass
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 Posted: Sat Apr 05, 2008 7:57 am |
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Guest
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x-posting.
The question here is how many methods available to evaluate in-situ
stiffness and mass of well constructed structres and solids. Stiffness is
the most important property to analyze structural response. We use
theoretical expressions of stiffness and mass to simulate and design
structures. The problem is, after structure has been well constructed in
position, what an actual stiffness (or mass) is. Theoretical expression of
stiffness fails to answer the question. We need a method to evaluate in-situ
stiffness and mass.
Furthermore, material could be deteriorated, and structure could be damaged.
How could we know, in advance, if an aging or repaired structure is safe to
a forseen impact or use. We need to evaluate in-situ stiffness and mass.
The site, www.equation.com, presents a tool, code name JUNE5, for evaulation
of in-situ stiffness and mass. As stated previously, how many methods are
available (or proposed) for evaluation of in-situ stiffness and mass? Could
we discuss the issue? Thank you. |
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| Anonymous #1 |
| Posted: Thu Apr 10, 2008 10:00 pm |
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Guest
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x-posting.
The question here is how many methods available to evaluate in-situ
stiffness and mass of well constructed structres and solids. Stiffness is
the most important property to analyze structural response. We use
theoretical expressions of stiffness and mass to simulate and design
structures. The problem is, after structure has been well constructed in
position, what an actual stiffness (or mass) is. Theoretical expression of
stiffness fails to answer the question. We need a method to evaluate in-situ
stiffness and mass.
Furthermore, material could be deteriorated, and structure could be damaged.
How could we know, in advance, if an aging or repaired structure is safe to
a forseen impact or use. We need to evaluate in-situ stiffness and mass.
The site, www.equation.com, presents a tool, code name JUNE5, for evaulation
of in-situ stiffness and mass. As stated previously, how many methods are
available (or proposed) for evaluation of in-situ stiffness and mass? Could
we discuss the issue? Thank you. |
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| Greg Locock |
| Posted: Fri Apr 11, 2008 7:22 pm |
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"post" <no-spam@equation.com> wrote in news:lHKJj.137$_I1.69@trnddc02:
Quote: x-posting.
The question here is how many methods available to evaluate in-situ
stiffness and mass of well constructed structres and solids.
1 : Experimental modal analysis
Cheers
Greg Locock |
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| Anonymous #1 |
| Posted: Sat Apr 12, 2008 8:00 am |
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Guest
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"Greg Locock" <greglocock@yahoo.com.au> wrote in message
news:Xns9A7E6975E65B877777777777777777777@211.29.133.50...
Quote: "post" <no-spam@equation.com> wrote in news:lHKJj.137$_I1.69@trnddc02:
1 : Experimental modal analysis
Cheers
Greg Locock
Are there any links to have more information on the analysis?
Kind Regards |
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| Greg Locock |
| Posted: Sat Apr 12, 2008 6:42 pm |
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Guest
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"Anonymous #1" <invalid-email@equation.com> wrote in news:rn2Mj.462$iI3.172
@trnddc06:
Quote:
"Greg Locock" <greglocock@yahoo.com.au> wrote in message
news:Xns9A7E6975E65B877777777777777777777@211.29.133.50...
"post" <no-spam@equation.com> wrote in news:lHKJj.137$_I1.69@trnddc02:
1 : Experimental modal analysis
Cheers
Greg Locock
Are there any links to have more information on the analysis?
Kind Regards
wiki |
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| Anonymous #1 |
| Posted: Sat Apr 19, 2008 8:28 am |
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Guest
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"Greg Locock" <greglocock@yahoo.com.au> wrote in message
news:Xns9A7E6975E65B877777777777777777777@211.29.133.50...
structres and solids.
Quote:
1 : Experimental modal analysis
Cheers
Greg Locock
Thanx for the response.
I googled it, and I did find applications of experimental modal analysis to
nondestructive evaluation, i.e., an attempt to locate damages or others.
However, I could not find anything that evaluates in-situ [K] and [M] of a
well-constructed structure. If you have links, is it possible to post them?
Thanks. |
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