On the influence of manufacturing parameters on buckling and modal properties of sandwich composite structures

Diniz, Camila Aparecida; Bortoluzzi, Daniel Brighenti; Pereira, João Luiz Junho; Cunha, Sebastião Simões da; Gomes, Guilherme Ferreira

doi:10.1016/j.istruc.2022.10.059

Cited by 9 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, the flexural stiffness of composite panels made of glass fiber reinforced skins and honeycomb core under three-point bending was studied by Alshahrani and Ahmed [32] and Zhang et al [33]. In their study, Diniz et al [34] demonstrated that modifying the manufacturing parameters, the skins, and the core materials of sandwich composite structures can effectively enhance the mechanical properties, structural performance, and failure modes of sandwich composite structures.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Sandwiched Construction with Composite and Hybrid Core Structure

Njim,

Hasan,

Jweeg

et al. 2024

Advances in Polymer Technology

View full text Add to dashboard Cite

In the field of lighter substitute materials, sandwich plate models of composite and hybrid foam cores are used in this study. Three core structures: composite core structure and then the core is replaced by a structure of a closed and open repeating cellular pattern manufactured with 3D printing technology. It finally integrated both into one hybrid open-cell core filled with foam and employed the same device (WBW-100E) to conduct the three-point bending experiment. The test was conducted based on the international standard (ASTM-C 393-00) to perform the three-point bending investigation on the sandwich structure. Flexural test finding, with the hybrid polyurethane/polytropic acid (PUR/PLA) core, the ultimate bending load is increased by 127.7% compared to the open-cell structure core. In addition, the maximum deflection increased by 163.3%. The simulation results of three-point bending indicate that employing a hybrid combination of PUR-PLA led to an increase of 382.3%, and for PUR–TPU by 111.8%; however, the highest value recorded with PUR/PLA, which has the slightest stress error among the tests. Also, it is reported that when the volume fraction of reinforced aluminum particles is increased, the overall deformation becomes more sufficient, and the test accuracy improves; for example, rising from 0.5% to 3%, the midspan deflection of composite (foam-Al) is increased by 40.34%. There were noticeable improvements in mechanical properties in the 2.5% composite foam-Al.

show abstract

Section: Introductionmentioning

confidence: 99%