A study of the elastic properties of winding composites of unidirectional structures with the use of the resonance method

Changes in the material elastic properties of winding composite rings of unidirectional structure under the influence of cyclically changing temperatures and moisture with the use of the resonance method is studied. The advantages of the resonance method over standard methods for determination of the elastic modulus are mentioned. Results of experiments for determination of the elastic modulus of winding fiberglass rings after the action of high temperature and moisture are given.