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Siti1-Visitor
1-Visitor
June 15, 2011
Question

bending moment and partial derivatives

I having some problem in key-in some equation in mathcad. I had searched in few sources, but still haven’t get proper solution for it.

Hereby I had attached my hand calculation. Please advise me how to key-in that formula/ equation in mathcad.

I hope for your kind co-operation.

I having some problem in key-in some equation in mathcad. I had searched in few sources, but still haven’t get proper solution for it.

Hereby I had attached my hand calculation. Please advise me how to key-in that formula/ equation in mathcad.

I hope for your kind co-operation.

11 replies

MikeArmstrong1-Visitor
1-Visitor
June 15, 2011

Welcome to the forum.

Something like the attached?

I haven't time to type the whole sheet out, so maybe it be prudent to type out what you can and pass a worksheet in the forum.

Mike

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Siti1-VisitorAuthor
1-Visitor
June 15, 2011

Thanks mike and vladimir. I will review the handbook.

But i have try the calculation in Mathcad. Could you check it.

And for sure my calculation for derivatives (dMCB/dP1=0 and dMCB/dP2=-x)are wrong, im not sure the correct one.

Thanks a lots

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VladimirN24-Ruby IV
24-Ruby IV
June 15, 2011

Please, look at this example. I hope, it will help.

Example.jpg

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VladimirN24-Ruby IV
24-Ruby IV
June 15, 2011

I think, you need to look in "Mathcad Handbook Roark's Formulas for Stress and Strain".

P.S. See also: http://communities.ptc.com/message/93196#93196

http://communities.ptc.com/message/158207#158207

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MikeArmstrong1-Visitor
1-Visitor
June 15, 2011

Good shout Vladimir.

Mike

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VladimirN24-Ruby IV
24-Ruby IV
June 15, 2011

But I cannot find now a direct link on this E-book (though it was accessible earlier).

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wayne12-Amethyst
12-Amethyst
June 15, 2011

Please look at the attached.

Wayne

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RichardJ19-Tanzanite
19-Tanzanite
June 16, 2011

The new alternative to Roark's, at a massive discount from $10000, is "Wayne's"

big_grin.gif

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wayne12-Amethyst
12-Amethyst
June 16, 2011

Richard, you are a wise man.

I am trying to think of something clever to say..............................nope, got nothing.

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