Calculating Deformation Energy for Brass Form Tests

[zoor]

Hi!

I'm working in a laboratory and been assigned to the task of verifying on of our machines calculations.

The machine calculates the deformationenergy needed to test a sample that's been moulded in a brass form. Its this value I need to validate.

The information I have at this point is:

- The speed, which is constant during the test. The speed is 50mm/min.
- the force needed in every single point of the test. The force I have in Newton.
- The time needed to complete the test (easy since the speed is constant)
- The moulds volume.

I've printed out a graph of all the facts to see the actuall graph on paper. The value that the computer prints out is in j/cm2 based on cross sectional of 1cm2.

Have I missed something? Do I have all the facts I need? And how do I implement all these values so that I can get answere I desire?

Very thankfull for advice.

Best regards from Sweden

 

[AndyW]

Hi there! It sounds like you have all the necessary information to validate the deformation energy calculated by the machine. The three main factors that contribute to deformation energy are force, speed, and time. Since you have the force and speed values, the only thing left to determine is the time needed for the test. As you mentioned, this should be easy to calculate since the speed is constant. Simply divide the volume by the speed to get the time needed for the test.

To validate the machine's calculation, you can compare the result with the theoretical calculation for deformation energy. The formula for deformation energy is E = F*d, where E is energy, F is force, and d is displacement. In your case, you can use the average force and the distance traveled (which can be calculated from the speed and time) to get the deformation energy.

Once you have the theoretical value, you can compare it with the value calculated by the machine. If they are close, then you can have confidence in the machine's calculation. However, if there is a significant difference, it may be worth investigating further to determine if there are any errors in the machine's calculations or if there were any external factors that may have affected the test.

I hope this helps and good luck with your verification process!