Investigation of the Thermo-Mechanical Properties of a 3D-Printed Carbon Fiber-Reinforced PPA Composite
3Dプリント炭素繊維強化PPA複合材料の熱力学的特性の調査 (AI 翻訳)
Urtė Ciganė, Tomas Kalinauskis, Justas Ciganas
🤖 gxceed AI 要約
日本語
本論文は、FFF方式で3Dプリントされた炭素繊維強化PPA複合材料（PPA CF15）の熱力学的特性を調査した。引張試験、疲労試験、DMA、SEM、FEAを用いて評価した結果、高温で弾性率と強度が低下する一方、破断伸びが増加し、粘弾性挙動を示した。自動車用インテークマニホールドのケーススタディにより、実用可能性が示唆された。
English
This paper investigates the thermo-mechanical performance of FFF-printed carbon fiber-reinforced PPA composite (PPA CF15). Tensile, fatigue, DMA, SEM, and FEA reveal strong temperature dependence, with modulus and strength decreasing at high temperatures while elongation increases. An automotive intake manifold case study demonstrates practical applicability.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
本研究成果は、自動車部品の軽量化による燃費改善に寄与する可能性があり、日本の自動車産業における脱炭素化（GX）の取り組みに間接的に貢献しうる。特に、高温環境下での使用が求められるエンジン周辺部品への応用が期待される。
In the global GX context
This material science study supports the development of lightweight automotive components, which can improve fuel efficiency and reduce lifecycle emissions. While not directly addressing climate disclosure, it provides engineering data for designing more sustainable vehicles globally.
👥 読者別の含意
🔬研究者:Provides experimental data and modeling approaches for 3D-printed composite materials under thermal and cyclic loading.
🏢実務担当者:Automotive engineers can use the material properties and FEA methodology to design lighter, more efficient components.
📄 Abstract（原文）
This study investigates the thermo-mechanical performance of fused filament fabrication (FFF)-printed polyphthalamide reinforced with 15 wt.% short carbon fibers (PPA CF15) for engineering applications under elevated temperature and cyclic loading conditions. The material was characterized by quasi-static tensile testing, fatigue testing, dynamic mechanical analysis (DMA), scanning electron microscopy (SEM), and finite element analysis (FEA). Tensile tests performed from 20 to 180 °C revealed a strong temperature-dependent reduction in mechanical properties: the elastic modulus decreased from 2.437 to 0.401 GPa, while the ultimate tensile strength decreased from 64.537 to 9.190 MPa. In contrast, elongation at break generally increased with temperature, indicating a transition toward more ductile deformation governed by thermal softening of the polymer matrix. Fatigue tests showed reduced fatigue resistance at higher temperatures and stress levels; however, stable cyclic performance was achieved when the applied stress remained below approximately 60–70% of the ultimate tensile strength, with several specimens reaching 106 cycles. DMA confirmed the viscoelastic nature of PPA CF15 and enabled the construction of frequency–temperature superposition master curves for numerical modelling. SEM observations revealed increased matrix deformation and fiber pull-out at elevated temperatures. FEA of an automotive intake manifold (IM) case study demonstrated that experimentally derived material data can be used to predict deformation, stress redistribution, and viscoelastic stabilization under combined thermal and mechanical loading. The results indicate that FFF-printed PPA CF15 is a promising lightweight composite for thermally and mechanically demanding automotive applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/polym18121422first seen 2026-06-10 05:06:33 · last seen 2026-06-16 04:50:07
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