部分填充EPS泡对六角蜂压缩行为的影响
Itsara Rojana1, Anchalee Manonukul2, Julaluk Carmai1
1The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Pracharat 1 Road, Bangkok 10800, Thailand.
用扩展聚钢 (EPS) 泡部分填充制蜂,可以提高能量吸收. 优化的填充物放置和形状是有效的轻量级吸收能源结构的关键.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 冲击力学 冲击力学
背景情况:
- 蜂是轻质结构,具有出色的能量吸收能力.
- 用扩展聚钢 (EPS) 泡等材料进行部分填充可以进一步提高性能.
- 了解填充剂效应对于优化能量吸收应用至关重要.
研究的目的:
- 为了研究部分填充EPS泡的制蜂巢的压缩行为.
- 分析填料面积分数和接触位置对能量吸收和压碎特性的影响.
- 评估轻量化,吸收能源的应用的潜力.
主要方法:
- 在不同的EPS泡填充器配置的制蜂巢上进行了轴向准静态压缩测试.
- 测量了包括能量吸收,平均压缩力,特定能量吸收和压缩力效率在内的关键性能指标.
- 填充剂形状 (圆形与六角形) 和接触位置 (顶点与中点) 的影响被系统地研究.
主要成果:
- 部分填充的蜂巢表现出比未填充的蜂巢显著更高的能量吸收和平均压碎力.
- 增加的填充面积分数增加了整体吸收,但由于增加的质量,减少了特定能量吸收.
- 六角填充剂在能量吸收方面表现优于圆形填充剂,这是由于压力分布的优化.
- 顶点接触位置影响了峰值力和压碎效率,墙中点接触增加了峰值力.
结论:
- 用EPS泡部分填充是一种有效的策略,可以改善蜂的能量吸收.
- 填充物几何和接触相互作用极大地影响机械反应和能量消耗.
- 优化部分填充的蜂巢为轻量化能量吸收提供了有希望的解决方案,例如在汽车工程等领域.
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