I have used the Ramberg-Osgood stress
strain model. It only requires the root
finder of MathCAD when looking for the
stress at a given strain because the
stress is implicitly expressed in terms
of a known or assumed strain.
Best regards,
The MatheMagician :-)
The MatheMagician says, "Create a REFERENCE FILE
with the UNITS of your choice" then just insert
the file name into each new project you deem
requiring such "user-defined units"
Reference files in MathCAD v11 (which is the
only version I have tried this feature)works...
I believe the intended intral is:
integral(a,b, sqrt(R^2 - x^2),dx)
then MathCAD can symbollically
evaluate this integral. Also note
that the limits are:
a = C (Not R - C),
and
b = R (radius of the circle)
Incidentally, C <= R.
You may want to consider changing the lower
limit to C a...
Use the soslve-block as:
Given
Y = m . x
X(m,y) := Find(x)
y = [1 2 3 4]T
i := 1..4
Solution[i := X(m, y[i)
Thanks for your interest in
MathCAD and keep those questions
coming !
Sincerely,
The MatheMagician :-)
Send me the files, I will open them in MathCAD,
print them to PDF then send you the Adobe
Acrobat (PDF) files to you :-)
Take care,
The MatheMagician !
Dear Fabcio, the meaning of Eigen is characteristic, and the
equation you have provided is quadratic with a well known
solutions, x= (-B +/-Sqrt(B^2 - 4*A*C))/(2*A). The equation
you have provided is "the characteristic equation" of your
model which for instance could represent...
It sounds to me as though you should create a function
usign the Given-find block solver, then access the function
using a loop inside your MathCAD program.
I would like to see the System of PDEs along with the
corresponding BCs, and Initial Conditions. The current
version of MathCAD,v11, has a very nice PDE-Block Solver.
The great progress in the area of PDE solvers started with
the previous release of MathCAD, 2001i, and that is
an ODE-Block...