I am a civil engineer with a master's in structural mechanics, yet I shifted my career a while back, the algorithm recommended your video since I subscribed when I was student years ago... What a lovely memories with your videos from the good old days. Keep up the good work, my deepest gratitude to you sir. Love from Turkey
I've been looking through all of the playlists but cannot find Cables and Arches for Structural Analysis....can anyone help. This is the most EPIC channel in engineering instruction so thought I would try here first.
why did you illustrate the new location point of B vertically below point B and perpendicular to the beam? should it not follow a circular path, meaning that the distance between the point at the pin and B is still the same on the new location? So it will be below B but not perpendicular to the beam with respect to original point B.
We cut through member BD for the free body diagram, since it is a truss element (only internal normal force) and so we can have three equations three unknowns.
If AC beam is rigid & is not bended, then path that point C takes before its in final point should be circular right ? Otherwise geometry does not make sense. So calculation is not correct as you have not accounted for circular path/arc length
I just checked with circular path, you still get that deflection at B = 2mm , which is MYSTERIOUS, how could I get same answer with arc length vs triangle :/ :(
@@aleksandreakhvlediani8034 It's because we are looking at very small deflections with respect to the beam length. In general, elementary mechanics and structural analysis employs a small rotation/deformation assumption (i.e. sin theta ~ theta)
I am a civil engineer with a master's in structural mechanics, yet I shifted my career a while back, the algorithm recommended your video since I subscribed when I was student years ago...
What a lovely memories with your videos from the good old days. Keep up the good work, my deepest gratitude to you sir. Love from Turkey
your dedication to the subject is amazing sir love from India
I've been looking through all of the playlists but cannot find Cables and Arches for Structural Analysis....can anyone help. This is the most EPIC channel in engineering instruction so thought I would try here first.
unfortunately, i haven't created any content on cables and arches at the moment
Although, I really like Hibbeler's structural analysis textbook and it has a chapter on cables and arches.
chicka chicka ... learning
why did you illustrate the new location point of B vertically below point B and perpendicular to the beam? should it not follow a circular path, meaning that the distance between the point at the pin and B is still the same on the new location? So it will be below B but not perpendicular to the beam with respect to original point B.
Why isn't the reaction at D considered when solving during the statics portion? Shouldn't that be part of the moment taken about point A?
We cut through member BD for the free body diagram, since it is a truss element (only internal normal force) and so we can have three equations three unknowns.
If AC beam is rigid & is not bended, then path that point C takes before its in final point should be circular right ? Otherwise geometry does not make sense. So calculation is not correct as you have not accounted for circular path/arc length
I just checked with circular path, you still get that deflection at B = 2mm , which is MYSTERIOUS, how could I get same answer with arc length vs triangle :/ :(
@@aleksandreakhvlediani8034 It's because we are looking at very small deflections with respect to the beam length. In general, elementary mechanics and structural analysis employs a small rotation/deformation assumption (i.e. sin theta ~ theta)
👍
With w=5kN/m the 𝞓c it will be 2.4861mm.
That seems reasonable...anyone else?
@@structurefree General equation:
With w in N/mm:
𝞓c =-1.6E3+SQRT(2.56E6+1.59156E3*w+0.158316*w*w)
valid in the elastic region.
Approximable to a linear behaviors:
with w in N/mm:
𝞓c =0.4971*w+4.1275E-4