The static compression and compression-compression fatigue tests of glass fiber plain woven composite laminates were carried out on an electro-hydraulic servo fatigue testing machine. The stress ratio was R=10, and the S-N curve was fitted. The fatigue damage evolution was characterized by stiffness degradation, energy dissipation, cyclic creep and cyclic softening during fatigue tests. The fracture morphology was observed by scanning electron microscope. The results show that the conditioned fatigue limit is 66.3% of the static compressive strength. The S-N curve fitted by the double-weighted least square method has high reliability. With the increase of the number of cycles, the stiffness of the test piece decreases gradually, and the energy dissipation under each peak load increases gradually. At the initial stage of cyclic loading, the test pieces exhibit strong cyclic creep phenomenon, and the test pieces under the peak load exhibit strong cyclic softening behavior. The resistance to deformation of the test piece is enhanced after cyclic loading. Four failure modes including matrix cracking, fiber/matrix interface debonding, fiber fracture and delamination are observed. Compared with fatigue fracture, the static compression fracture shows larger delamination damage.


    Access

    Download


    Export, share and cite



    Title :

    Static compression and compression-compression fatigue properties of plain woven composite laminates


    Contributors:
    ZHANG Tiechun (author) / YANG Chenchen (author) / WANG Xuan (author) / ZHOU Chunping (author)


    Publication date :

    2022




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown