E3S Web Conf.
Volume 376, 2023International Scientific and Practical Conference “Environmental Risks and Safety in Mechanical Engineering” (ERSME-2023)
|Number of page(s)||12|
|Section||I Environmental Risks and Safety in Mechanical Engineering|
|Published online||31 March 2023|
Modeling of dynamic and spectral viscoelastic characteristics of composite materials
Bauman Moscow State Technical University, 2nd Baymanskaya Str., 105005, Moscow, Russia
* Corresponding author: firstname.lastname@example.org
When designing products made of composite materials intended for use in difficult conditions of inhomogeneous deformations and temperatures, it is important to take into account viscoelastic, including spectral and dynamic, properties of the binder and fillers. The article considers dynamic characteristics (complex modulus, complex malleability, their real and imaginary parts, loss angle tangent) and spectral characteristics of relaxation and creep and their dependence on each other. The abovementioned characteristics were found for all known types of creep kernel and relaxation kernel. To find the spectral characteristics, one of the numerical methods of reversing the Laplace transformation was used - the method of quadrature formulas. Algorithms and computer programs have been compiled to implement this method.
Key words: composite materials / viscoelastic properties / spectral properties / dynamic properties / Laplace transformation / quadrature formulas
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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