Full Blade Digital Image Correlation (DIC) Test Apparatus
Full Blade Digital Image Correlation (DIC) Test Apparatus
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Date
2022
Authors
Collar, Andrew Nathan
Advisor
Bauchau, Olivier A
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Abstract
The objective of this study was to design a Digital Image Correlation (DIC) apparatuscapable of measuring sectional stiffness properties of full scale helicopter blades within
preexisting facilities. To do so, this study expanded on previous studies findings that
deemed DIC apparatus as an ideal system to measure the strain field over composite
blades. To determine the ideal apparatus to measure the sectional stiffness properties
of full scale blades that can be used at facilities such as Fort Eustis in Newport News,
VA., two initial concepts -the gantry and stationary system- were investigated. The study
used analytical matrices like the Pugh’s matrix to down select to an ideal apparatus. The
study determined the ideal design through cost, distance from the blade, and accuracy
to finalize a potential solution. This study identified the stationary system as the ideal
system for this purpose. The proposed solution would have an initial cost of $100,000
to acquire the required equipment proposed in the current study. Through empirical and
analytical methods, the solution would be able to measure the strain field within 1%.