shear stress eqn

teng125

http://www.savefiles.net/d/ieiwoixnjfw.html

Can anybody pls write for me the shear stress eqn using singularities or heaviside function in which i have attach the in the file above

pls help

thanx

Cyrus

This is the homework help, not the do your homework forum.

Pyrrhus

Looks like standard procedure to me?, on what exactly are you stuck?

teng125

the equation for the middle part where the joint forces between the upper and lower force.Should i write 2q<x-l>^0 or any others??

Meson

Taking downward direction as a positive direction, the load density function should be

[tex]q(x)=q_{0}-q_{0}(x-l)^0-q_{0}(x-l)^0=q_{0}-2q_{0}(x-l)^0[/tex]

Note that the [tex]q_{0}[/tex] is contributed by the upper distributed force, the first [tex]q_{0}(x-l)^0[/tex] is to diminish the effect of [tex]q_{0}[/tex] at position along the beam [tex]x=l[/tex] while the second [tex]q_{0}(x-l)^0[/tex] is the lower distributed force that acting in an upward direction, which means the negative direction here by convention.


Then, proceed to find [tex]V(x)[/tex] and [tex]M(x)[/tex]. Finally, draw the shear and moment diagrams.

teng125

ok.........thanx