Mechanical characteristics of 3D‐printed honeycomb sandwich structures: Effect of skin material and core orientation DOI Creative Commons
Jaber Mirzaei, Meysam Nouri Niyaraki,

Sayed Mohamad Nikouei

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Abstract Sandwich structures are crucial in automotive, and construction industries due to their lightweight, high‐strength properties, insulation, energy absorption capabilities. In addition, 3D‐printed sandwich important customizable geometry controlled material distribution, which enhance strength stiffness. This study examines the mechanical properties of composite with a honeycomb core. The skin, fabricated using wet hand lay‐up method, consists glass, carbon, epoxy resin, while fused deposition modeling machine produces polylactic acid (PLA+) A full factorial design analysis variance were employed evaluate effects skin core orientation on through compression three‐point bending tests. performance improved core‐skin synergy, enhancing load distribution resistance. Carbon/epoxy skins offered stiffness strength, delaying failure modes, glass/epoxy provides flexibility cost‐efficiency. Hybrid combined these benefits, stability. vertical further maximized capacity minimized buckling compared horizontal alignment. Optical revealed crack propagation as primary mechanisms. Last but not least, finite element ABAQUS confirmed qualitative similarity load–displacement curves deformation behavior experimental results. Highlights Mechanical analyzed via experiment. Vertical improves compressive flexural over cores. deliver superior panels. Failure mechanisms include buckling, cell wall debonding, wrinkling/cracking. Finite results closely aligned tests, validating structural predictions.

Язык: Английский

Mechanical characteristics of 3D‐printed honeycomb sandwich structures: Effect of skin material and core orientation DOI Creative Commons
Jaber Mirzaei, Meysam Nouri Niyaraki,

Sayed Mohamad Nikouei

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Abstract Sandwich structures are crucial in automotive, and construction industries due to their lightweight, high‐strength properties, insulation, energy absorption capabilities. In addition, 3D‐printed sandwich important customizable geometry controlled material distribution, which enhance strength stiffness. This study examines the mechanical properties of composite with a honeycomb core. The skin, fabricated using wet hand lay‐up method, consists glass, carbon, epoxy resin, while fused deposition modeling machine produces polylactic acid (PLA+) A full factorial design analysis variance were employed evaluate effects skin core orientation on through compression three‐point bending tests. performance improved core‐skin synergy, enhancing load distribution resistance. Carbon/epoxy skins offered stiffness strength, delaying failure modes, glass/epoxy provides flexibility cost‐efficiency. Hybrid combined these benefits, stability. vertical further maximized capacity minimized buckling compared horizontal alignment. Optical revealed crack propagation as primary mechanisms. Last but not least, finite element ABAQUS confirmed qualitative similarity load–displacement curves deformation behavior experimental results. Highlights Mechanical analyzed via experiment. Vertical improves compressive flexural over cores. deliver superior panels. Failure mechanisms include buckling, cell wall debonding, wrinkling/cracking. Finite results closely aligned tests, validating structural predictions.

Язык: Английский

Процитировано

0