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东方龙虱鞘翅：形态学及力学性能研究
  • ISSN号：0023-074X
  • 期刊名称：《科学通报》
  • 时间：0
  • 分类：TS186.1[轻工技术与工程—纺织材料与纺织品设计;轻工技术与工程—纺织科学与工程] TG146.21[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]南京航空航天大学仿生结构与材料防护研究所,南京210016
  • 相关基金：国家自然科学基金重点项目（批准号：50635030）、国家自然科学基金面上项目（批准号：50675160）和航空科学基金（批准号：2007ZA52008）资助项目
作者： 杨志贤[1], 戴振东[1], 郭策[1]
关键词： 鞘翅, 形态结构, 力学性能, 轻质结构, 拉伸实验
中文摘要：

研究了东方龙虱鞘翅的拓扑结构及其鞘翅生物材料的力学性能.SEM观测表明鞘翅横向截面和纵向截面结构相同,是一种具＂桥墩＂状连接的空腔轻质结构,由致密的黑色外表皮层和其下数十层几丁质纤维层平行、螺旋交织构成的内表皮层组成;纳米压痕仪测得新鲜鞘翅外侧区域的硬度和弹性模量分别为0.31和6.13GPa;拉伸实验得到新鲜鞘翅横向和纵向的强度极限分别为169.2和194.5MPa;干燥鞘翅对应的强度极限为85.38和90.91MPa,新鲜鞘翅的强度是干燥鞘翅值的2倍;结果表明甲虫鞘翅是一种力学性能呈现拓扑分布规律的轻质生物复合材料,该研究为航空航天材料的轻质结构的设计提供了生物学的参考.

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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
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  • 被引量:81792