- #1
ride5150
- 26
- 0
i thought the maximum deflection of a structure (a beam for example) occurred at the same location of the maximum bending moment. But, doing some homework I am getting contradicting results.
does max deflection ALWAYS occur at the same location of the max bending moment?
thanks for the responses in advance
PS here's some more details if you need them:
using the 4th derivative method for finding deflection/ slope, i found the second derivative (which should be the moment) and found where it is maximum (using a graphing calculator). the question uses variables instead of number, but that shouldn't matter. later on in the solution to the problem, it says that the maximum deflection is at a different place than i calculated for the max bending moment.
?
this makes absolutely no sense to me, unless:
i made a mathematical mistake (unlikely, i checked my work repeatedly)
the location of the max BM is not the same as the location of the max deflection.
ill type up my work if its necessary
does max deflection ALWAYS occur at the same location of the max bending moment?
thanks for the responses in advance
PS here's some more details if you need them:
using the 4th derivative method for finding deflection/ slope, i found the second derivative (which should be the moment) and found where it is maximum (using a graphing calculator). the question uses variables instead of number, but that shouldn't matter. later on in the solution to the problem, it says that the maximum deflection is at a different place than i calculated for the max bending moment.
?
this makes absolutely no sense to me, unless:
i made a mathematical mistake (unlikely, i checked my work repeatedly)
the location of the max BM is not the same as the location of the max deflection.
ill type up my work if its necessary