使用半控制设计模型对3D打印的非周期性ASA格子结构进行机械单轴压缩
Nebojša Rašović1, Inga Krešić1, Jasmin Kaljun2
1Faculty of Mechanical Engineering, Computing and Electrical Engineering, University of Mostar, 88000 Mostar, Bosnia and Herzegovina.
Polymers
|October 28, 2025
概括
这项研究优化了3D打印的烯酸烯酸烯酸 (ASA) 格子结构,以实现压缩下可预测的机械反应. 半控制的设计提高了可靠性,揭示了脆弱的行为和明显的弹性,塑料和崩阶段.
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:
- 随机格子结构提供可调整的机械性能.
- 预测和优化3D打印结构的机械行为对于工程应用至关重要.
- 烯酸烯酸 (ASA) 是用于3D打印的常见材料.
研究的目的:
- 预测和优化3D打印的ASA格子结构在压力压力下的机械反应.
- 为了提高可预测性,研究从随机到半控制的设计方法的过渡.
- 分析设计参数对机械行为和故障模式的影响.
主要方法:
- 通过3D打印使用烯酸烯酸 (ASA) 丝制造格子结构.
- 使用犀牛7软件从随机到半控制的图形设计的过渡.
- 压缩测试的结构产生与Voronoi人口沿着抛物线曲线.
- 分析应力-应变数据以确定机械行为阶段和故障机制.
主要成果:
- 半控制的图形化导致可预测和可靠的机械反应.
- 设计参数,如节点形成和支架厚度调节相对密度,最大限度地减少其对刚性和强度的影响.
- 观察到三个不同的机械阶段:弹性,塑性和没有密集的崩.
- 抛物线配置影响了峰值应力和弹性斜率,突出了交叉连接几何学的影响.
- 结构表现出脆弱的行为,局部裂和振荡高原形成.
结论:
- 半控制式设计方法提高了3D打印格子结构的可预测性和可靠性.
- 交叉连接几何学显著影响弹性机械响应和故障模式.
- 观察到的脆性行为需要在结构设计和应用中仔细考虑.
- 这项研究为优化格子结构以满足特定机械要求提供了基础.
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