About this Abstract |
Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
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Symposium
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2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
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Presentation Title |
Energy Absorption Characteristics of Additively Manufactured Composite Tube-Reinforced Polymer Honeycomb |
Author(s) |
Muhammad Khizer Ali Khan, Wesley Cantwell, Kamran Khan |
On-Site Speaker (Planned) |
Kamran Khan |
Abstract Scope |
Cellular structures are known for their outstanding mechanical properties such as light weight, high strength, energy absorption, and vibration reduction. These properties make cellular structure (CS) attractive for many engineering applications especially in the fields of aerospace, bio-medical and automation. Recently, the progress of novel cellular designs has been accelerated by the advances in additive manufacturing (AM) as it has allowed the rapid manufacturing and testing of optimized and complex geometries. The ability to create lightweight but crashworthy architected CS is a convoluted task. Inspiration is drawn from the unique materials and structures present in nature, such as in the elytra of a beetle forewing. The microstructure of elytra contains an irregular honeycomb structure having hollow columns that makes it lightweight and rigid.
In this study, the energy-absorbing characteristics of an additively manufactured (AM) composite honeycomb core filled with circular tubes have been investigated in different filling modes. The specific energy absorption (SEA) and failure mechanism of plain 3D printed honeycomb is utilized to enhance the performance of reinforced honeycomb structures. The honeycomb filled with circular tubes (HFCT) structure is manufactured through Material extrusion (MEX) process using Polyamide (PA) honeycomb as base structure reinforced with carbon /glass fiber composite circular tubes. Preliminary results show that the additively manufactured honeycomb filled with composite tubes greatly enhanced the energy-absorption properties of the core structure. The ease in manufacturing of such multi-material structure presents an excellent design choice for tunable energy absorption devices.
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Proceedings Inclusion? |
Definite: Post-meeting proceedings |