Good evening to all,
on the website https://reference.wolfram.com/language/FEMDocumentation/tutorial/SolvingPDEwithFEM.html, I found the example below regarding a beam under a peak loas. I do not understand which are the measure units used to define the load term (-1) and the Young Module (Y). Does anyone could help me? Thank you.
op = {Inactive[
Div][({{0, -((Y \[Nu])/(1 - \[Nu]^2))}, {-((Y (1 - \[Nu]))/(
2 (1 - \[Nu]^2))), 0}}.Inactive[Grad][
v[x, y], {x, y}]), {x, y}] +
Inactive[
Div][({{-(Y/(1 - \[Nu]^2)),
0}, {0, -((Y (1 - \[Nu]))/(2 (1 - \[Nu]^2)))}}.Inactive[
Grad][u[x, y], {x, y}]), {x, y}],
Inactive[
Div][({{0, -((Y (1 - \[Nu]))/(2 (1 - \[Nu]^2)))}, {-((
Y \[Nu])/(1 - \[Nu]^2)), 0}}.Inactive[Grad][
u[x, y], {x, y}]), {x, y}] +
Inactive[
Div][({{-((Y (1 - \[Nu]))/(2 (1 - \[Nu]^2))),
0}, {0, -(Y/(1 - \[Nu]^2))}}.Inactive[Grad][
v[x, y], {x, y}]), {x, y}]} /. {Y -> 10^3, \[Nu] -> 33/100};
Subscript[\[CapitalGamma], D] =
DirichletCondition[{u[x, y] == 0., v[x, y] == 0.}, x == 0];
{ufun, vfun} =
NDSolveValue[{op == {0, NeumannValue[-1, x == 5]},
Subscript[\[CapitalGamma], D]}, {u, v}, {x, 0, 5}, {y, 0, 1}];