在3D打印的混合曲线复合体梁中研究分层特性
Sedat Süsler1,2, Zafer Kazancı2
1Faculty of Aeronautics and Astronautics, Kocaeli University, Kartepe 41285, Kocaeli, Turkey.
Polymers
|August 29, 2024
概括
这项研究研究了使用连续丝制造制造的混合曲线复合体梁. 优化梁设计,如添加平面区域,可显著提高增材制造应用的负载能力和分层强度.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 混合复合梁在各种工程应用中至关重要.
- 了解增材制造复合体梁的结构完整性对于可靠的设计至关重要.
- 连续纤维制造 (CFF) 为复杂的复合结构提供了先进的功能.
研究的目的:
- 评估材料组成和打印参数对混合曲线复合体梁结构完整性的影响.
- 为了评估使用先进的化沉积模型制造的梁的分层特性.
- 为复合光束设计建立可靠的虚拟测试方法.
主要方法:
- 使用连续丝制造 (CFF) 制造复合曲线梁的制造,使用短碳和连续纤维增强尼龙板.
- 四点曲试验用于实验性地确定分层特性.
- 为虚拟测试和验证开发基于2D表面的凝聚性有限元模型.
主要成果:
- 与光滑区域相比,将五个平面区域纳入曲线区域将最大负载增加10%,分层强度增加6%.
- 单向的碳/尼龙板块表现出比玻璃纤维/尼龙更好的分层阻力.
- 双重连续纤维板的强度提高了36%,但引起了质量和成本的担忧.
结论:
- 这项研究为优化增材制造混合复合材料曲线梁的设计提供了关键的见解.
- 开发的有限元模型与实验数据有很好的一致性,使得高效的虚拟测试成为可能.
- 这些发现有助于改进复合梁,支架和配件的设计和数值建模.
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