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用基于TPMS的新型核心对三明治结构的定义,制造和压缩测试

Alexandru Vasile^1,2, Dan Mihai Constantinescu^1,3, Iulian Constantin Coropețchi^1,2

¹Department of Strength of Materials, National University for Science and Technology POLITEHNICA Bucharest, Splaiul Independeţei 313, 060042 Bucharest, Romania.

Materials (Basel, Switzerland)

|November 9, 2024

概括

研究人员使用三次周期最小表面 (TPMS) 和隐式建模方法开发了新的薄壁元材料. 一个定制的TPMS结构与陀螺相比显示出优越的机械性能,证明了先进材料设计的潜力.

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:

三重周期性最小表面 (TPMS) 是具有独特性质的元材料,其独特性质来自于其复杂的拓结构.
由于其广泛的参数化,预测基于TPMS的元材料的行为具有挑战性.
对于先进的材料应用,需要新的TPMS拓.

研究的目的:

使用隐式建模方法生成新的薄壁超材料.
分析新TPMS结构的可打印性,设计参数和机械行为.
为了识别TPMS设计具有优越的属性,相比已建立的,如状腺.

主要方法:

隐式建模被用来生成八个基于外的TPMS拓和一个随机结构.
进行细胞同质性分析以评估异性异性.
用立体石刻法 (SLA) 制造了样品,其相对密度为0.3,分辨率为50μm.
用压缩试验和开放细胞数学模型来评估机械行为.

主要成果:

该研究成功地产生了新的薄壁TPMS和随机结构.
对新拓的可打印性和设计参数进行了表征.
压缩试验揭示了特定的变形模式和机械反应.
一个人为设计的TPMS结构与状腺参考相比,表现出优越的特性.

结论:

隐式建模是产生新型薄壁TPMS和随机元材料的有效方法.
该研究确定了一种定制的TPMS结构,具有增强的机械性能.
这项工作为设计具有定制性质的先进超材料提供了一条途径.

关键词:

在TPMS系统中,使用的是TPMS.隐式建模隐式建模超材料是指金属材料.这就是三明治结构.

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