A semi-analytical method for forced vibration analysis of cracked laminated composite beam with general boundary condition
| Autor: | Yongsong Paek, Myongchol Ri, Sok Kim, Kwanghun Kim, Choljun Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Timoshenko beam theory
Semi-analytical method Environmental Engineering lcsh:Ocean engineering Ocean Engineering Oceanography 01 natural sciences Displacement (vector) 010305 fluids & plasmas 0103 physical sciences Dynamic analysis lcsh:TC1501-1800 Boundary value problem 010301 acoustics Mathematics Parametric statistics Cracked laminated composite beam (CLCB) business.industry General boundary condition Structural engineering Finite element method Vibration Orthogonal polynomials Fracture (geology) business Numerical analysis |
| Zdroj: | Journal of Ocean Engineering and Science, Vol 6, Iss 1, Pp 40-53 (2021) |
| ISSN: | 2468-0133 |
| Popis: | In this paper, a semi-analytical method for the forced vibration analysis of cracked laminated composite beam (CLCB) is investigated. One computational model is formulated by Timoshenko beam theory and its dynamic solution is solved using the Jacobi-Ritz method. The boundary conditions (BCs) at both ends of the CLCB are generalized by the application of artificial elastic springs, the CLCB is separated into two elements along the crack, the flexibility coefficient of fracture theory is used to model the essential continuous condition of the connective interface. All the allowable displacement functions used to analyze dynamic characteristics of CLCB are expressed by classical Jacobi orthogonal polynomials in a more general form. The accuracy of the proposed method is verified through the compare with results of the finite element method (software ABAQUS is used in this paper). On this basis, the parametric study for dynamic analysis characteristics of CLCB is performed to provide reference datum for engineers. |
| Databáze: | OpenAIRE |
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