Impact response of a low-cost randomly oriented fiber foam core sandwich panel

Buenrostro, Ezequiel; Whisler, Daniel

doi:10.1177/0021998318764009

Cited by 11 publications

(8 citation statements)

References 24 publications

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“…The resulting reinforced sandwich composites have shown remarkable properties in terms of various parameters compared specimens with a neat PUF core. For example, Buenrostro and Whisler studied the impact behavior of glass fiber‐reinforced PUF core sandwich specimens by using a low‐cost manufacturing technique and compared the results with sandwich specimens with a neat PUF core. Firstly, the mechanical properties of the reinforced and neat PUF were investigated using three‐point bending tests and then their sandwich specimens were subjected to drop tower (low velocity) and gas gun (high velocity) impact tests.…”

Section: Puf Core Sandwich Structuresmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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Sandwich composites with a polyurethane foam (PUF) core have become a versatile set of materials with applications ranging from basic construction elements to advanced engineering materials. This diverse range of applications has provided these sandwich materials with a distinctive position in today's engineering world. This review focuses on the broad research that has been carried out on PUF core‐based sandwich composites over the years—especially in the last decade. Thorough details have been presented focusing on basic PUF core sandwich structures, advanced PUF core sandwich composites with different kinds of reinforcements and complex structures such as hybrid sandwich panels. All the research presented here has been categorized carefully, such as the types of materials used in various studies, the types of reinforcements and testing techniques used, including mechanical, electrical, dynamic, thermal and acoustic methods etc. Comparisons have also been made based on similar materials, similar testing procedures and similar application areas. Research areas have been highlighted by giving a deep insight into the most promising research, manufacturing techniques and improvement procedures. Major consumption areas and application sectors for PUF core sandwich composites have also been discussed in this review. Finally, conclusions have been made based on the results found from a literature investigation.

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Section: Puf Core Sandwich Structuresmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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“…The shear stress has the largest effect on the core tearing during the three-point bending test [ 11 , 29 , 30 ]. The shear strength of ABS is taken as half of the yielding stress.…”

Section: Resultsmentioning

confidence: 99%

“…The bond stress 𝜎 𝑏 was calculated from Equation (17), and the results are presented in Table 12. The shear stress has the largest effect on the core tearing during the three-point bending test [11,29,30]. The shear strength of ABS is taken as half of the yielding stress.…”

Section: Failure Modementioning

confidence: 99%

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Mechanical Strength of Triply Periodic Minimal Surface Lattices Subjected to Three-Point Bending

Lin¹,

Pan²,

Li³

2022

Polymers

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Sandwich panel structures (SPSs) with lattice cores can considerably lower material consumption while simultaneously maintaining adequate mechanical properties. Compared with extruded lattice types, triply periodic minimal surface (TPMS) lattices have light weight but better controllable mechanical properties. In this study, the different types of TPMS lattices inside an SPS were analysed comprehensively. Each SPS comprised two face sheets and a core filled with 20×5×1 TPMS lattices. The types of TPMS lattices considered included the Schwarz primitive (SP), Scherk’s surface type 2 (S2), Schoen I-graph-wrapped package (I-WP), and Schoen face-centred cubic rhombic dodecahedron (F-RD). The finite element method was applied to determine the mechanical performance of different TPMS lattices at different relative densities inside the SPS under a three-point bending test, and the results were compared with the values calculated from analytical equations. The results showed a difference of less than 21% between the analytical and numerical results for the deformation. SP had the smallest deformation among the TPMS lattices, and F-RD can withstand the highest allowable load. Different failure modes were proposed to predict potential failure mechanisms. The results indicated that the mechanical performances of the TPMS lattices were mainly influenced by the lattice geometry and relative density.

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“…Lot of work related with sandwich beam have been done on the failure modes and deformation prediction under impact loads and many of these works have been summarised in detailed. 13–20 Buenrostro and Whisler 13 studied impact response of a low-cost randomly oriented fibre foam core sandwich panel. Their study explored different manufacturing techniques for the three-dimensional fibre-reinforced foam core to provide a proof of concept for a low-cost and easily repeatable method comprised of readily available materials.…”

Section: Introductionmentioning

confidence: 99%

The response of pin-clamped carbon fibre-reinforced plastics composite sandwich beams with polyvinylchloride foam core under bending impact

Çalışkan

Apalak

2020

Journal of Reinforced Plastics and Composites

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The dynamic response of pin-clamped composite sandwich beam in terms of face-sheet effect with polyvinylchloride foam core subjected to bending impact loading was investigated in this paper. Composite sandwich beams with three different unidirectional skin layups of [0]4, [45]4 and [90]4 and two types of face-sheet thickness of 1 ([0]4) and 2 ([0]8) mm were fabricated. An explicit code, VUMAT, is written and implemented in ABAQUS/Explicit. The micro-computerised tomography scanning was used to detect adhesive layer failure. The ply angle orientation of face sheets plays an important role in the failure mechanism of the sandwich beam under bending loads. Although it is known that the fibre angle in the direction perpendicular to the bending direction is more stiff and strength, damage tolerances under bending impact loads of beams with other fibre angles were determined. In addition, as the number of layers increased, failure mechanism and load-carrying capacity of composite face sheets changed completely for increasing bending stiffness. This research provides fundamental information about the change of the failure mechanisms as the fibre angle and thickness of the face sheet were changed and in terms of interpretation with the help of finite elements using different failure criteria.

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Impact response of a low-cost randomly oriented fiber foam core sandwich panel

Cited by 11 publications

References 24 publications

A review on recent advances in sandwich structures based on polyurethane foam cores

A review on recent advances in sandwich structures based on polyurethane foam cores

Mechanical Strength of Triply Periodic Minimal Surface Lattices Subjected to Three-Point Bending

The response of pin-clamped carbon fibre-reinforced plastics composite sandwich beams with polyvinylchloride foam core under bending impact

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