Quasi-static and Fatigue Strength of Helically Wrapped Structures
L.R. Koel (TU Delft - Aerospace Engineering)
J.A. Pascoe – Mentor (TU Delft - Aerospace Engineering)
R.C. Alderliesten – Graduation committee member (TU Delft - Aerospace Engineering)
D.M.J. Peeters – Graduation committee member (TU Delft - Aerospace Engineering)
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Abstract
A Helically wrapped structure is a hollow pipe structure that is made from a metal strip and the overlapping interfaces are adhesively joined. It is yet unknown how to determine the quasi-static strength and predict the fatigue life of this structure. A method was developed to determine whether either the adherend or the adhesive is critical to determine the strength and fatigue life. A machine was made to create the helically wrapped structure and tested for validation. It was found that the adherend is critical instead of the adhesive.