Band gap behavior of optimal one-dimensional composite structures with an additive manufactured stiffener

Ampatzidis, Theofanis; Leach, Richard K.; Tuck, Christopher; Chronopoulos, Dimitrios

Abstract

In this work, the banded behaviour of composite one-dimensional structures with an additive manufactured stiffener is examined. A finite element method is used to calculate the stiffness, mass and damping matrices, and periodic structure theory is used to obtain the wave propagation of one-dimensional structures. A multi-disciplinary design optimisation scheme is developed to achieve optimal banded behaviour and structural characteristics of the structures under investigation. Having acquired the optimal solution of the case study, a representative specimen is manufactured using a carbon fibre cured plate and additive manufactured nylon-based material structure. Experimental measurements of the dynamic performance of the hybrid composite structure are conducted using a laser vibrometer and electrodynamic shaker setup to validate the finite element model.

Citation

Ampatzidis, T., Leach, R. K., Tuck, C., & Chronopoulos, D. (2018). Band gap behavior of optimal one-dimensional composite structures with an additive manufactured stiffener. Composites Part B: Engineering, 153, https://doi.org/10.1016/j.compositesb.2018.07.012

• Journal Article Type: Article
• Acceptance Date: Jul 10, 2018
• Online Publication Date: Jul 21, 2018
• Publication Date: Nov 15, 2018
• Deposit Date: Jul 20, 2018
• Publicly Available Date: Jul 22, 2019
• Journal: Composites Part B: Engineering
• Print ISSN: 1359-8368
• Electronic ISSN: 1359-8368
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 153
• DOI: https://doi.org/10.1016/j.compositesb.2018.07.012
• Keywords: Composite structures; Band gap behaviour; Additive manufacturing; Hybrid structures; Wave propagation
• Public URL: https://nottingham-repository.worktribe.com/output/950843
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S1359836817341112?via%3Dihub