Dimensional Changes in CFRP/PMI Foam Core Sandwich Structures

John, Marianne; Skala, Tibor; Wagner, Tim; Schlimper, Ralf; Rinker, Martin; Schäuble, Ralf

doi:10.1007/s10443-012-9288-1

Cited by 22 publications

(8 citation statements)

References 10 publications

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“…Foam core sandwich structures are a major class of lightweight structure materials and widely used in engineering filed including aerospace, automotive, and marine structures. [54][55][56][57][58][59] Min et al 9 designed a stainless steel fan bland with metal foam core to process a high stiffness with lighter weight. Bai and Davidson 54 presented the theoretical development of composite foam core sandwich panels and provided a rigorous analysis methodology for foam insulated concrete sandwich structures.…”

Section: Typical Core Structuresmentioning

confidence: 99%

Creative design for sandwich structures: A review

Feng

Qiu

Gao

et al. 2020

International Journal of Advanced Robotic Systems

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Sandwich structures are important innovative multifunctional structures with the advantages of low density and high performance. Creative design for sandwich structures is a design process based on sandwich core structure evolution mechanisms, material design method, and panel (including core structure and facing sheets) performance prediction model. The review outlines recent research efforts on creative design for sandwich structures with different core constructions such as corrugated core, honeycomb core, foam core, truss core, and folded cores. The topics discussed in this review article include aspects of sandwich core structure design, material design, and mechanical properties, and panel performance and damage. In addition, examples of engineering applications of sandwich structures are discussed. Further research directions and potential applications are summarized.

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Section: Typical Core Structuresmentioning

confidence: 99%

Creative design for sandwich structures: A review

Feng

Qiu

Gao

et al. 2020

International Journal of Advanced Robotic Systems

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“…Numerous studies on various types of foam and sandwich structures have been published. Qiu et al, 45 John et al, 46 Yan et al, 47 Yang et al, 48 Wang et al, 49 Choi et al, 50 Zhu et al, 51 Lv et al, 52 Huo et al, 53 Mostafa et al, 54 Rizov et al, 55 Kulkarni et al, 56 investigated the fatigue resistance and electromagnetic shielding performance of foam sandwich structures, as well as their bending, shear, impact, and other mechanical properties. The outcomes demonstrated excellent potential for engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Effects of polymethacrylimide foam reinforced aluminum honeycomb sandwich under quasi‐static compression

Song

Xiong

Yin

et al. 2023

Polymers for Advanced Techs

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In this study, aluminum honeycomb cells were filled with polymethacrylimide (PMI) foam of high strength and stiffness, and carbon fiber reinforced composite (CFRC) skins were added to create a composite sandwich structure. Nine types of specimens with varying cell node spacing and foam density were constructed, and stiffness equations were derived. To compare the performances of aluminum honeycomb and PMI foam sandwich structures, their compressive responses were examined using edgewise and flatwise compression tests. Moreover, the failure was analyzed using finite element methods (FEM). Analytical and numerical models were used to investigate the size effects of rib width, rib angle, and node spacing.

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“…To cut costs, the candidate of the expensive methacrylonitrile (MAN) such as AN, acrylamide (AM), and butyl methacrylate (BMA) was excavated to prepare the PMI foam. To prepare the PMI foam with uniform performance, the craft of prepolymerization, photoinitiation, and ultrasonic initiation had been introduced …”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of polymethacrylimide/silicate foam

Zhang

2018

Polymers for Advanced Techs

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The polymethacrylimide/silicate (PMI/silicate) composites were successfully prepared from the monomers of acrylonitrile (AN) and methacrylic acid (MAA) via the monomer in situ intercalation polymerization and free foaming. The formation of imide groups was monitored by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The results of FTIR and XPS indicated that the imide groups were gradually formed and cyano groups were dwindling but still existed during foaming and thermal treatment. The thermogravimetric analysis results revealed that the thermal stability of the PMI/silicate composites was improved, the rate of thermal degradation was reduced, and the residue was increased because of the addition of silicates. The results of dynamic mechanical analysis revealed that the rigidity and the glass transition temperature of the composites were improved.The limit oxygen index (LOI) and cone calorimeter (CONE) test showed that the fire-retardant properties were improved because of the barrier effect of silicates.The cell morphologies of the PMI/silicate composites were characterized by scanning electron microscopy (SEM), and the results showed that the silicate particles were distributed on the cell walls, but the cells slightly cracked. The mechanical properties were measured by tensile, flexural, and compressive strength. The mechanical strength, especially flexural strength, was significantly improved. The flexural strength of PMI/MMT, PMI/kaolin, and PMI/talc containing 8 wt% silicates was improved to 172%, 240%, and 233%.

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Dimensional Changes in CFRP/PMI Foam Core Sandwich Structures

Cited by 22 publications

References 10 publications

Creative design for sandwich structures: A review

Creative design for sandwich structures: A review

Effects of polymethacrylimide foam reinforced aluminum honeycomb sandwich under quasi‐static compression

Preparation and characterization of polymethacrylimide/silicate foam

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