At Cornell and at many other schools, torsion testing machines
are not available due to space, time and budget constraints. This
lab endeavors to provide opportunities to study torsional behavior
through the exploration of real test data.
this has been assigned to you
as a lab or HW assignment for your course, we recommend:
the Lab Manual to get an idea
of what information you will need to extract.
to the Chalk Talks (narrated
presentations on theory and procedure).
the Online Quiz-Test Your Knowledge
so that you are familiar with the material before doing the analysis.
the Virtual Tests (videos
of selected experiments) and images of broken samples.
through the analyses and questions in your assignment, downloading
and analyzing Test
Data as needed.
site contains more material than you may be assigned. This is to
provide flexibility, perhaps your professor will ask you to work
on different aspects than another professor.
you are viewing this site on your own
learn more about torsion, we recommend that you view the Virtual
Tests and listen to the Chalk
Narrated presentations on theory, data reduction, sample preparation,
test procedure and equipment. Printable (.pdf) version of each
talk is available.
Tests - Video records of selected tests, rotatable
views of broken samples.
Data - Torque-twist data in ASCII format. See Hints
on Graphing to learn how to load data into Matlab or
Manual - Instructions
for Cornell students for performing the lab. Includes data sheets
for help in data reduction. Printable (.pdf) manual available.
Material - Unit conversions, definitions and hints
Your Knowledge - On line quiz, designed as a self-test
- not for your course grade!
(linked from home page) Can use this to ask questions about the
lab or to discuss issues with other users.