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部分填充的聚苯乙烯泡沫对六边形铝蜂窝压缩性能的影响

Effects of Partially Filled EPS Foam on Compressive Behavior of Aluminum Hexagonal Honeycombs.

作者信息

Rojana Itsara, Manonukul Anchalee, Carmai Julaluk

机构信息

The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Pracharat 1 Road, Bangkok 10800, Thailand.

National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Pathum Thani 12120, Thailand.

出版信息

Materials (Basel). 2024 Dec 4;17(23):5945. doi: 10.3390/ma17235945.

DOI:10.3390/ma17235945
PMID:39685381
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11643238/
Abstract

This study investigates the compressive behavior of aluminum honeycombs partially filled with expanded polystyrene (EPS) foam, emphasizing the effects of filler area fractions and vertex contact locations on energy absorption and crush characteristics. Axial quasi-static compression tests evaluated energy absorption, mean crush force, specific energy absorption, and crush force efficiency. Results revealed that partially filled honeycombs significantly enhance energy absorption and mean crush force compared to their unfilled counterparts. However, higher filler area fractions increased mass, reducing specific energy absorption. Circular fillers exhibited lower energy absorption than hexagonal fillers due to their larger contact radius, which reduces stress concentration. The interaction between cell walls and fillers influenced densification strain, with wall-midpoint vertex contacts increasing peak force by reinforcing walls, while corner contacts reduced peak force but improved crush force efficiency. These findings underscore the potential of optimized, partially filled honeycombs for lightweight, energy-absorbing applications, particularly in automotive engineering.

摘要

本研究调查了部分填充有发泡聚苯乙烯（EPS）泡沫的铝蜂窝的压缩行为，重点关注填充面积分数和顶点接触位置对能量吸收和挤压特性的影响。轴向准静态压缩试验评估了能量吸收、平均挤压力、比能量吸收和挤压力效率。结果表明，与未填充的蜂窝相比，部分填充的蜂窝显著提高了能量吸收和平均挤压力。然而，较高的填充面积分数增加了质量，降低了比能量吸收。圆形填充物由于其较大的接触半径，能量吸收低于六边形填充物，这降低了应力集中。细胞壁与填充物之间的相互作用影响了致密化应变，壁中点顶点接触通过加强壁增加了峰值力，而角接触降低了峰值力，但提高了挤压力效率。这些发现强调了优化的部分填充蜂窝在轻质、能量吸收应用中的潜力，特别是在汽车工程领域。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/5a38b93dc20a/materials-17-05945-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/d28d54446287/materials-17-05945-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/8867513fb6ee/materials-17-05945-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/7e7109764b6e/materials-17-05945-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/fff4441e30cf/materials-17-05945-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/157c2bdf81c1/materials-17-05945-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/610b64c77785/materials-17-05945-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/ab4e77f23fee/materials-17-05945-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/a6462ad2ab6d/materials-17-05945-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/ad0a1f70846d/materials-17-05945-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/5a38b93dc20a/materials-17-05945-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/d28d54446287/materials-17-05945-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/8867513fb6ee/materials-17-05945-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/7e7109764b6e/materials-17-05945-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/fff4441e30cf/materials-17-05945-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/157c2bdf81c1/materials-17-05945-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/610b64c77785/materials-17-05945-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/ab4e77f23fee/materials-17-05945-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/a6462ad2ab6d/materials-17-05945-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/ad0a1f70846d/materials-17-05945-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3158/11643238/5a38b93dc20a/materials-17-05945-g010.jpg

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