两种典型缺陷对六边形蜂窝压缩性能的影响OA北大核心CSCDCSTPCD
Effects of Two Classical Defects on Compressive Mechanical Properties of Hexagonal Honeycombs
通过数值模拟研究了孔洞和部分填充孔穴这两种典型缺陷对弹性蜂窝(橡胶)和弹塑性蜂窝(金属)的压缩性能的影响规律.结果表明,相对于分散孔洞,集中孔洞对蜂窝材料的力学性能影响更大,且它们的存在完全改变了其变形模式;而对于含填充孔穴的蜂窝材料而言,其弹性模量得到显著增强,弹性蜂窝的屈曲应力也得到增强,但弹塑性蜂窝的塑性坍塌应力则保持不变或有所下降.
The influences of two classical defects on the compressive mechanical properties of honeycombs are investigated in this paper.The numerical results show that the bigger concentrated hole has more significant effects on the mechanical behavior of honeycombs than the smaller scattered holes.The bigger concentrated hole even can change the deformation mechanism of honeycombs.Furthermore,we find that a honeycomb with some filled cells has a higher Young's …查看全部>>
卢子兴;黄纪翔
北京航空航天大学固体力学研究所,北京100083北京航空航天大学固体力学研究所,北京100083
通用工业技术
含缺陷蜂窝压缩性能有限元模拟
Honeycomb with defectsCompressive mechanical propertiesFinite element simulation
《宇航材料工艺》 2017 (6)
73-78,6
国家自然科学基金项目(11472025和11272030)
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