Residual stresses in intrinsic thermoset-thermoplastic hybrid composites

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2025-02-13 DOI:10.1007/s42114-025-01263-8

Nicolas Dorr, Gabriel Fabrini Ribeiro, Janik Schmidt, Arne Björn Busch, Sathis Kumar Selvarayan, Robert Brandt

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引用次数: 0

Abstract

Combining different materials in a thermally activated manufacturing process into a hybrid composite can lead to residual stresses if there is a difference between the adhesion temperature T_AD and the application temperature T_AP. If such hybrid composites are subjected to high cyclic loads, residual stresses may influence their durability. While residual stress analysis has been extensively studied in the context of metal-plastic hybrids, the residual stress condition is unknown for thermoset-thermoplastic hybrids produced by injection molding. Therefore, we firstly apply a calculational model to estimate the residual stress for the investigated material combination of glass fiber-filled polyamide (PA6.6 GF30) and a unidirectional glass fiber-reinforced plastic (UD-GFRP) with a polyurethane acrylate matrix. Secondly, these results are compared to a corresponding computational simulation model. Integrating Fiber-Bragg-Grating (FBG) sensors in the UD-GFRP allows for the determination of residual strain in the thermoset component at different temperatures and thereby both the calculational and computational simulation methods could be validated against experimental results. The results show that process-related residual stresses occur in the hybrid composite and are not negligible. Normal stresses of − 39.6 MPa have been observed in thermoset material. Furthermore, the calculational determined normal stresses are in accordance with the experimentally determined values.

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.