Mechanical Response of All-composite Pyramidal Lattice Truss Core Sandwich Structures

Li, Ming; Wu, Linzhi; Ma, Li; Wang, Bing; Guan, Zhi‐Zhong

doi:10.1016/s1005-0302(11)60110-2

Cited by 78 publications

(41 citation statements)

References 20 publications

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“…The strength of the CPET structures increases rapidly with increasing density as the core members become more resistant to buckling failure. Similar trend is seen for the pyramidal cores presented in [6] which have relatively low strength at very low densities (20kgm -3 ) and then increase rapidly. At higher densities, the CPET lattice core outperform other core materials except for the corrugated carbon fibre core presented in [1].…”

Section: Comparisons With Existing Core Materialssupporting

confidence: 78%

“…At low core densities (<40kgm -3 ), the CPET lattice cores have a strength comparable to the structures presented in [6] and [7]. At these low core densities no competing metallic cores exist.…”

Section: Comparisons With Existing Core Materialsmentioning

confidence: 56%

“…The CPET lattice cores shows very competitive stiffness compared to both traditional foam cores and to recently developed pyramidal lattice cores [6]. At higher core densities, the CPET core have considerably higher out-of-plane compressive stiffness than both pyramidal titanium [16] and carbon fibre cores [6,7].…”

Section: Comparisons With Existing Core Materialsmentioning

confidence: 94%

“…Such efforts include all-composite corrugated cores [1][2], square honeycomb [3] cores and pyramidal lattice truss cores [4][5][6][7][8]. Although many of these novel structures show exceptional weight specific strength and stiffness, they are often complicated to manufacture and more suitable for laboratory scale production.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Compression properties of novel thermoplastic carbon fibre and poly-ethylene terephthalate fibre composite lattice structures

Schneider

Velea

Kazemahvazi

et al. 2015

Materials & Design (1980-2015)

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A novel manufacturing route to efficiently produce fibre composite lattice structures has been developed. By using thermoplastic composite materials, flat sheets have been continuously folded, cut into a lattice shape and joined into a sandwich structure.Carbon fibre reinforced PET and PET fibre reinforced PET materials have been used to explore two different core options; a carbon fibre option which gives high performance but low recyclability and a single polymer PET option which gives lower performance but full recyclability. Parametric numerical simulations have been used to investigate how the various manufacturing parameters affect the mechanical performance of the core. The carbon fibre composite cores have mechanical performance on-par or better than existing metallic and composite lattice cores presented in literature. Single polymer PET cores show better performance compared to high-end foam cores but have considerable lower performance than carbon fibre lattice cores.

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Section: Comparisons With Existing Core Materialssupporting

confidence: 78%

Section: Comparisons With Existing Core Materialsmentioning

confidence: 56%

Section: Comparisons With Existing Core Materialsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compression properties of novel thermoplastic carbon fibre and poly-ethylene terephthalate fibre composite lattice structures

Schneider

Velea

Kazemahvazi

et al. 2015

Materials & Design (1980-2015)

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show abstract

“…Comparatively speaking, the differences of the specific shear properties are small, as listed in Table 4. Besides, the literature (Li et al, 2011) points out that its structure has an excellent shear mechanical performance compared with other metallic lattice truss core sandwich panels, especially for low density cores.…”

Section: Comparisons and Discussionmentioning

confidence: 99%

Mechanical behavior of all-composite pyramidal truss cores sandwich panels

Sun

Gao

2013

Mechanics of Materials

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3D‐Printed Wood‐Fiber Reinforced Architected Cellular Composites

et al. 2020

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One class of state-of-the-art lightweight, energy-efficient materials with enhanced material properties is "architected cellular solids." Their exotic properties (e.g., high strength-to-weight ratio, high energy absorption capability and tunable multiphysical properties) mainly stem from their rationally designed underlying architectures (e.g., cell topology and cell connectivity) and partially from the properties of their constituent materials. [1] Cellular solids, so-called cellular-based "metamaterials," upon showing unprecedented properties, have recently received considerable attention due to their potential applications in aerospace, automotive, energy, robotics and biomedical sectors as high-performance lightweight panels, energy absorbers, morphing structures, noise reduction, waveguide devices, programmable battery electrodes, and bioimplantable medical devices. [2] Recently, advances in "3D printing," interchangeably called "additive manufacturing" (AM), have shed light on strategies for design and realization of advanced materials (including "cellular solids" and "architected metamaterials") with controlled material composition and architectural complexity. A large number of studies have been conducted to investigate the correlation between specific mechanical properties and the architecture of 3D-printed advanced materials. [3] Fast prototyping, material saving, waste minimization, design freedom, and the capability to manufacture complex architectures are the main 3D printing advantages. [4] 3D printing is a fabrication process for constructing free-form materials and structures from a computer-aided design model. The printing process typically involves layerupon-layer fabrication that enables the production of complex geometries that would be impossible by conventional manufacturing processes. [5] Several methods can be adopted for 3D printing: direct metal laser sintering (DMLS), selective laser melting (SLM), and electron beam melting (EBM) for printing metallic powders; selective laser sintering (SLS) for printing polymeric and metallic powders; laminated object manufacturing (LOM), direct foam writing, 3D extrusion freeforming of ceramics (EFF), and lithography-based ceramic manufacturing (LCM) for ceramic-based materials; stereolithography apparatus (SLA) and digital light projection (DLP) for printing photopolymeric resins; and fused deposition modeling (FDM) for printing thermoplastic polymers. [6] The simplicity, reliability, affordability (minimal waste, low processing and operational cost), multimaterial (multinozzle) printing capability, and adaptability to new materials, and composites have made FDM one of the most

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Mechanical Response of All-composite Pyramidal Lattice Truss Core Sandwich Structures

Cited by 78 publications

References 20 publications

Compression properties of novel thermoplastic carbon fibre and poly-ethylene terephthalate fibre composite lattice structures

Compression properties of novel thermoplastic carbon fibre and poly-ethylene terephthalate fibre composite lattice structures

Mechanical behavior of all-composite pyramidal truss cores sandwich panels

3D‐Printed Wood‐Fiber Reinforced Architected Cellular Composites

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