topic Re: Stress-Strain plot using mathcad prime in Mathcad

Stress-Strain plot using mathcad prime

Teddy — Sun, 21 May 2023 22:18:21 GMT

Can anyone help me with a simple programing to help me plot my stress-strain plot. I am really bad at programming, and I hope you could give me some pointers. Already tried watching tutorials and I still do not know how to proceed, Thank you in advance.

Re: Stress-Strain plot using mathcad prime

Werner_E — Sun, 21 May 2023 22:35:11 GMT

The problem is the function f.C1 because you used square brackets. Using square brackets creates a matrix which is not what you want.

So use normal parentheses and the sheet works.

But your range variable epsilon.C consists of only four numbers (0, 0.001, 0.002 and 0.003) and so your plot is just connecting four points.

Re: Stress-Strain plot using mathcad prime

Teddy — Mon, 22 May 2023 12:33:19 GMT

But how do i plot the function with a smoother curve?

Re: Stress-Strain plot using mathcad prime

terryhendicott — Mon, 22 May 2023 13:10:48 GMT

Change the square brackets, and plot using a mid range of 0.0001 not 0.001

Re: Stress-Strain plot using mathcad prime

Teddy — Mon, 22 May 2023 14:47:45 GMT

Do you mind if I ask another plotting problem? I want to plot a Moment - rho graph and I don't know how to plot it. How do I plot it with only using equation for both limits that have a dependent variable rho in its nominal moment.

Thank you.

Re: Stress-Strain plot using mathcad prime

terryhendicott — Mon, 22 May 2023 15:55:56 GMT

Hi,

Please include the worksheet which allows us to work with the sheet to answer your questions.

The two moment equations are equivalent.

Re: Stress-Strain plot using mathcad prime

Teddy — Mon, 22 May 2023 16:14:24 GMT

What if my I have a limit that is rho min which is equal to 1.4/Fy and rho max which is equal to rho bal that is why in my previous program it has limits on its rho. Thank you.

Re: Stress-Strain plot using mathcad prime

Fred_Kohlhepp — Mon, 22 May 2023 16:30:01 GMT

Change your range variable

A range variable construct is simple: "start here", "second point", , , :"stop here"

so the second point (minus the first) sets the step delta. You currently have a three number range variable, Changing to the above gives a finer division of points to draw straight lines thru,

Re: Stress-Strain plot using mathcad prime

terryhendicott — Mon, 22 May 2023 18:17:01 GMT

Hi.

Don't put your math regions embedded behind a text block as it makes it very hard to edit, Use units on the variables in math region not on foreground text block