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基于异质性双重材料的增材制造的动态特征

Hsien-Hsiu Hung¹, Shih-Han Chang², Yu-Hsi Huang¹

¹Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan.

|July 12, 2025

概括

本研究开发了一种结合实验和有限元分析 (FEA) 的方法,以了解3D打印软硬复合材料的动态行为. 这些发现验证了这些先进材料的新建模框架.

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:

研究先进复合材料的动态机械行为对于结构应用至关重要.
增材制造 (AM) 提供了创新的方法来创建具有量身定制属性的复杂复合结构.
了解在动态负荷下层复合材料中的软硬材料之间的相互作用是必不可少的.

研究的目的:

建立一个综合的方法,结合实验测量和有限元素分析 (FEA) 来分析通过AM制造的软硬层复合材料.
描述这些复合材料的时间和频率依赖的刚性反应,并将其应用于结构动态模拟.
通过实验和模拟比较来验证拟议的建模框架的准确性和可靠性.

主要方法:

使用混合AM技术 (PolyJet/SLA) 制造复合梁结构,采用交替的软硬材料.
通过冲击试验 (硬材料) 和拉伸/应力松试验 (软材料) 确定材料性能,以导出Prony系列参数.
在多层复合体梁上进行撞击测试,并将实验结果与FEA模拟进行比较.

主要成果:

成功确定了硬质和粘弹性软质材料的材料参数.
通过结合实验和模拟方法验证了共振频率和动态响应的准确性.
分析了复合材料对称度和厚度比对动态模式特征的影响.

结论:

综合实验和FEA方法提供了一个可靠的框架来预测AM制造的软硬复合材料的动态行为.
该研究成功地描述了软材料的粘弹性特性及其对复合材料动态反应的影响.
这些发现有助于开发和应用使用增材技术制造的先进复合材料.

关键词:

这是Prony系列.添加剂制造添加剂制造添加剂制造复合材料是一种复合材料.这是自然频率的自然频率.粘性弹性材料是一种粘性弹性材料.

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