Dynamic response of delaminated composite and sandwich beams using an efficient sub-lamented based higher order laminate model
Date
2024
Authors
Feng, Y.
Sheikh, A.H.
Ng, C.-T.
Smith, S.T.
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Advisors
Journal Title
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Journal article
Citation
Mechanics of Structures and Machines, 2024; 52(8):5147-5173
Statement of Responsibility
Yuan Feng, Abdul Hamid Sheikh, Ching-Tai Ng and Scott T. Smith
Conference Name
Abstract
A higher order model having sub-laminate capabilities for dynamic analysis of intact or delaminated composite and sandwich beams are presented. Each sub-laminate considered cubic and quadratic through-thickness variations for axial and transverse displacements respectively. The presence of displacement fields at the external surfaces of the sub-laminates helps to conveniently stack multiple sub-laminates by no additional treatments. The model has the flexibility in choosing the number of sub-laminates that provides the flexibility of controlling accuracy and computational efficiency. Central to the model is the development of a C0 continuous displacement based beam element. A thorough validated of the model is conducted using a wide range of problems having different structural configurations and dynamic loading. The model is then employed to investigate the behavior of new sandwich beam problems with multiple de-laminations under dynamic loads to study the influence of different delamination configurations. New results generated during this process can serve as benchmark data for future research.
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Dissertation Note
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Published online: 22 Aug 2023
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