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franks1no
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Hey physics forums people, this is my first post ever and I am not sure if this is the right sub forum, but w.e, let's try this out anyways
K so the problem is I've got a weight hanging on the shear centre of a cantilever and there are strain gauges all over it
It is an L shaped cantilever with a weight being hung off of the corner of the L.
If you look at the cantilever from the side, all of the gauges are on the same part of the plane...sort of like this
(FIXED) -------GAUGES----------------------(Free)
----------D1 ------------- D2
so they are all at the same distance from the free end, just different parts of the...cross section. yea.
so the lab asks me to find the theoretical strains at all of the given points on the cantilever
i know
D1
D2
The location of all of the gauges
The force applied to the end (weight x g)
The dimensions of the cross section
Young's ModulusYeah.
the kicker with this one too is that i have to repeat it with the cantilever twisted to various angles as well...pretty rockin
NO IDEA...if you guys could help me out with this, that would rock.
like i know the general strain equations, but how would they change with the different angles to get to the gauges...like would i a^2 + b^2 = c^2?
and there would be different answers because some parts are in tension and others are compression
Derp
Yeah any help would rock a looot
thanks guys
Homework Statement
K so the problem is I've got a weight hanging on the shear centre of a cantilever and there are strain gauges all over it
It is an L shaped cantilever with a weight being hung off of the corner of the L.
If you look at the cantilever from the side, all of the gauges are on the same part of the plane...sort of like this
(FIXED) -------GAUGES----------------------(Free)
----------D1 ------------- D2
so they are all at the same distance from the free end, just different parts of the...cross section. yea.
so the lab asks me to find the theoretical strains at all of the given points on the cantilever
i know
D1
D2
The location of all of the gauges
The force applied to the end (weight x g)
The dimensions of the cross section
Young's ModulusYeah.
the kicker with this one too is that i have to repeat it with the cantilever twisted to various angles as well...pretty rockin
Homework Equations
NO IDEA...if you guys could help me out with this, that would rock.
like i know the general strain equations, but how would they change with the different angles to get to the gauges...like would i a^2 + b^2 = c^2?
and there would be different answers because some parts are in tension and others are compression
The Attempt at a Solution
Derp
Yeah any help would rock a looot
thanks guys
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