Slide 4

The test procedure and data acquisition are straightforward. Each sample is first marked with a permanent ID number, and then measured. Samples are loaded into the testing machine with the twist set to zero, and with zero axial load. With the axial load control set to zero, the sample is twisted at a constant rate, ranging from 0.1 to 10 degrees per second, depending on the material. During the test, digital data is acquired by the test system computer at a rate of 10 sample sets per second (except for some of the PMMA tests where data were taken at various rates). Each data set includes time, axial displacement, twist, axial force, and torque, all in SI units. The data is in text format and can be downloaded for analysis.

Introduction

Chalk Talks
•Basic theory
•Testing
  system
•Engineered   materials
•Turkey bone

Virtual Tests
•Aluminum
•Turkey bone
•PMMA
•Cast iron

Test Data
•Aluminum
•Turkey bone
•PMMA
•Cast iron

Lab Manual
•Engineered   materials
-Instructions
-Data sheets
•Turkey bone
-Instructions
-Data sheets
•Entire lab
  manual (.doc) (.pdf)

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