Data sheets

Table 1. Circular sample dimensions

ID of the test sample used*
Dimensions(mm)	GL:________ OD:_______ ID: ________	GL:________ OD:_______ ID: ________	GL:________ OD:_______ ID: ________
J(m⁴)**
k_total (N-m/rad)
k_sample_***(N-m/rad)
G (N/ m²⁾
or # (N/m²)
T_max(N-m)
T_yor T_u(N-m)
Fracture description

*Data file name
**To convert mm⁴ to m⁴, multiply by 10^-12
***Corrected for machine compliance
#Ty and for ductile materials, Tu and for brittle materials.

Table 2.Comparison sheet (Circular samples)

Specimen	1	2	3
ID of test sample used
Material	AL 2024-T3	AL 2024-T3	AL 2024-T3
Reference material properties##	G=________ =________	G=________ =________	G=________ =________
Nominal dimensions	GL: 88.9 mm OD: 12.7 mm ID: 0.0 mm	GL: 88.9 mm OD: 12.7 mm ID: 10.16 mm	GL: 44.5 mm OD: 12.7 mm ID: 10.16 mm
Measured size	GL: _______ OD: ______ ID: _______	GL: _______ OD: ______ ID: _______	GL: _______ OD: ______ ID: _______
J (m⁴)
Torsional stiffness, k_sample(N-m/rad)
or # (N/m²)
Length ratio
Polar moment of inertia ratio
Stiffness ratio
T_y ratio

##You can find these values in many mechanics of materials textbook. A quick web reference is www.matweb.com