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Finding max bending moment 1

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mar2805

Structural
Dec 21, 2008
372
Hi folks.
See file attached.
Its an simply supported beam with an concentrated force.
I cant program Mathcad to find the x value were shear force diagram intesects with x axis.
I know at wich value is this going to happen for this loading scenario but how to tell mathcad to slove this?
I tired using the root function but no luck.
Please help.
Thank you
 
 http://files.engineering.com/getfile.aspx?folder=ca47f6c5-6181-4ca7-ad2a-227d397b5d0e&file=Beam.xmcd
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re: minerr, as I said, it was hit or miss as to whether minerr would work.

TTFN
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7ofakss

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Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com:
 
Getting back to your beam4.xmcd file: The guess value for "x" that you put in has to be in the range of available solutions, therefore, x>4m will not give you a solution with x:=0 but it will with x:=6. Of course, V(x)=-20Kn will not work at all, there is no V(x)=-20Kn with x>4m
 
@irstuff
" You need to change the guess value of x to be >4 -- for the second set of Finds"
this works fine at my place
thanx!
 
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