The method of creep estimation of polymer composite materials based on the rheological characteristics obtained in vibration tests is considered. Difficulties of application of short-term vibration test results for the creep prediction are analyzed. The type of experimental dependencies for the complex modulus components required for the application of viscoelastic creep theory is substantiated. Convenient analytical approximations of these dependencies are proposed, which allow one to restore the creep kernel in the form of an exponential kernels. Stability of the restored creep kernel paramet0065rs to inaccuracy of experimental determination of frequency dependencies of complex modulus of carbon fiber-reinforced plastic is analyzed.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 58, No. 1, pp. 43-58, January-February, 2021. Russian DOI: 10.22364/mkm.58.1.03.
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Vlasov, D.D., Polilov, A.N. The Possibility of Creep Prediction of Viscoelastic Polymer Composites Using Frequency Dependences of Complex Modulus Components. Mech Compos Mater 58, 31–42 (2022). https://doi.org/10.1007/s11029-022-10009-2
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DOI: https://doi.org/10.1007/s11029-022-10009-2