材料分布不均对TPMS结构曲强度和能量吸收的影响
Martin Koroľ1, Monika Töröková1, Marek Kočiško1
1Faculty of Manufacturing Technologies, Technical University of Kosice, Bayerova 1, 08001 Presov, Slovakia.
Polymers
|February 27, 2026
概括
原始的三重周期最小表面 (TPMS) 结构为能量吸收应用提供最佳的强度和性. 材料梯度可以在曲负载下提高TPMS结构的能效.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 增材制造 增材制造 增材制造
背景情况:
- 三重周期性最小面 (TPMS) 对于轻量化,吸收能源的结构至关重要.
- 优化TPMS机械反应需要了解细胞几何和物质分布效应.
研究的目的:
- 评估细胞几何和材料分布如何影响原始,陀螺和钻石TPMS结构的曲行为.
- 为了确定最佳的TPMS设计,以在曲负荷下吸收能量.
主要方法:
- 用不同体积分数 (35-55%) 的尼龙12CF样品进行增材制造 (化沉积建模).
- 三点曲试验 (ISO 178) 用于量化机械性能:Fmax,屈曲强度,吸收能量和柔性指数.
- 对细胞几何学 (原始,陀螺,钻石) 和材料分布效应的分析.
主要成果:
- 原始结构表现出最高的强度 (28.35 MPa) 和性 (柔性指数高达8.62),体积分数为45-55%.
- 甲状腺结构在45%体积分数时比55%体积分数时吸收的能量更高,这表明梯度增强能效的潜力.
- 原始结构表现出对物质不均分布的优越抵抗力.
结论:
- 原始TPMS结构为曲负载下的梯度设计提供了强度和性的平衡.
- 材料不均性可以稳定变形机制,并在特定TPMS配置中改善能量吸收.
- 该研究提供了使用TPMS架构设计先进的能吸收元件的见解.
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