Band gap behaviour of optimal one-dimensional composite structures with an additive manufactured stiffener. (15th November 2018)

• Record Type: Journal Article
• Authors: Ampatzidis, T.; Leach, R.K.; Tuck, C.J.; Chronopoulos, D.
• Is Part Of: Composites. Number 153(2018)
• Page Start: 26
• Page End: 35
• Publication Date: 2018-11-15
• Subjects: Composite structures -- Band gap behaviour -- Additive manufacturing -- Hybrid structures -- Wave propagation; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2018.07.012
• Languages: English
• ISSNs: 1359-8368

Abstract

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.