yes and no. it depends on what shape the UDL is. is it a rectangular shape? then yes, the UDL "acts" at the midpoint of the UDL. however, if the UDL is the shape of let's say a triangle, it "acts" 1/3 of the distance from the bigger end of the triangle. the SUM of all the forces in the y...
thank you that makes sense.
but how about a simply supported beam? as in, a hinge at one end, a roller at the other, and a triangular uniform distributed load on top. so the location of maximum bending moment wouldn't be equal to the location of maximum deflection?
i think if the load isn't...
the crank will be under "torsion." since the axle is a cylinder (the crank like a cylinder too right?) i think you should be using:
tmax= Tr/Ip or maximum stress = (torque * radius of bar)/ (polar moment of inertia)
you have to consider both the torque applied by the person and torque in the...
first of all, you need to determine the reactions at the fixed end. what shape is the UDL? (rectangle, triangle etc). 4kn/m doesn't specify this.
a fixed end has 3 reactions. moment, force in y direction, force in x direction.
to find reactions, you need to sum the moments about a point...
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...
Like the title says, i want to work in the structural field of civil engineering, but i have an opportunity to be an intern at a traffic engineering company. I don't have the job yet, but considering that I am currently working for a traffic engineering PhD student (making calls and getting data...
heres the problem and its solution:
I understand how to find reactions etc etc, the only thing that i don't understand is how to calculate the net forces that are acting on the pulley. the tension in the line is trying to "straighten" the line out, the pulley is fighting this force to...
i definitely study more than 12-14 hrs a week:P sounds like this article applies to students that are majoring in something that isn't science related. like philosophy, art etc.
i have 3 more semesters to go to get my civil engineering degree, currently my gpa is 2.5. i was ignorant and careless when i first started school, i have just started to get good grades my last 3 semesters. A's and B's.
its going to be next to impossible to graduate with a 3.0 gpa...
Homework Statement
The Attempt at a Solution
for part 1:
i figured that this structure is not in static equilibrium. once load "P" is applied, the roller at "D" will function as a fulcrum and ABC will lift (make an angle with the horizontal).
is that assumption correct...
I have a question in my environmental engineering class that goes like this:
if 100mg H2SO4 is added to 1 Liter of water, how many milligrams of NaOH (strong base) must be added to neutralize the acid?
the answer is 81.6mg, but how do i get to the answer?
i tried writing a reaction of...
I have a environmental engineering problem to do for homework, it goes like this:
How many mg/L of magnesium ion will remain in solution in water that is 0.001000 M in hydroxyl ion and at 25 degrees celsius?
the answer is 0.1367 mg/L, but i don't know how it was found.
to be honest I...