Study on High-Speed Impact Phenomena and Nonli Varation Phenomena of Aluminum Honeycomb Structures

铝蜂窝结构高速冲击现象和非变形现象研究

• 批准号: 18560077
• 负责人: TANAKA Koichi
• 金额: $ 2.46万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560077/
• 关键词: Cellstructure; Honeycomb structure; Imnact streneth; Stress and Strain; Stress waves; Plastic collapse; Inelasticity; Deformation Characteristics; セル崩壊; 高速衝撃; 衝撃波; エネルギー吸収; 非線形振動; 応力・ひずみ特性

So called cell structure is composed of a network of combined slid stems or solid plates to firm a porous Aid. An aluminum honeycomb, a typical cell structure composed of hexagonal cells walls, has very small nominal weight and is widely used for reinforcement of shell structures. In this project, the in-plane static and dynamic behaviors of aluminum honeycombs were investigated both experimentally and analytically. Particularly the effect of strain rates on the in-plane compression process and plastic collapse was investigated intensively by introducing a cell-male strain and a macro-sale strain. In experiments, a newly constructed impacting device was used and the compression process was measured using a laser velocimeter a high-speed video camera and strain gauges.On the other hand, by considering the fact that in-plane deformation is large for relatively small external bads, the she& absorption characteristics was examined in order to apply aluminum honeycombs for a at and gentle man-machine damper. Also, the vibration. characteristics was investigated in the relation to the dynamic behavior and shock absorption of aluminum honeycombs.As a result, very interesting behaviors of the in-plane compression process ware found and useful knowledge for development of honeycomb structures was obtained

所谓泡孔结构，是指由一系列相互结合的滑动杆或实心板构成的网状结构，用以固定多孔性助剂。铝蜂窝是一种典型的由六边形单元壁组成的单元结构，具有很小的公称重量，广泛用于壳体结构的加固。本计画针对铝蜂窝结构的面内静态与动态特性进行实验与分析研究。特别是通过引入单胞应变和宏观应变，深入研究了应变率对面内压缩过程和塑性失稳的影响。在实验中，采用新型的冲击装置，利用激光测速仪、高速摄像机和应变片测量了压缩过程，并考虑到较小外力作用下面内变形较大的事实，研究了铝蜂窝材料的吸湿特性，以将其应用于一种大而柔和的人-机阻尼器。还有振动研究了铝蜂窝结构的动态特性与冲击吸收的关系，发现了铝蜂窝结构面内压缩过程中的有趣行为，为蜂窝结构的发展提供了有益的知识

项目成果

アルミニウムハニカムの面内変形機構におけるひずみ速度の影響と2-スケールひずみの関係

应变率对铝蜂窝面内变形机制的影响及2尺度应变关系

• 发表时间: 2008
• 期刊: 日本機械学会論文集A編 74-737
• 作者: 田中皓一;他3名
• 通讯作者: 他3名

The effect of Strain Rate and the Relationship of 2-Scale Strains in In-plane Degormation Mechanism of Aluminum Honeycombs (in Japanese)

铝蜂窝面内变形机制中应变率的影响和2-尺度应变的关系（日文）

• 发表时间: 2008
• 期刊: Transactions of the Japan Society of Mechanical Engineers 73-737
• 作者: Koichi;Tanaka;Masahiro;NISHIDA;Kazumasa;Tomita;Tetsuhisa;HAYAKAWA
• 通讯作者: HAYAKAWA

The effect of Strain Rate in In-plane Degormation Mechanism of Aluminum Honeycombs (in Japanese)

应变率对铝蜂窝面内变形机制的影响（日文）

• 发表时间: 2007
• 作者: Koichi;TANAKA;Masahiro;NISHIDA;Kazuma TOMITA;Tetsuhisa;HAYAKAWA
• 通讯作者: HAYAKAWA

In-Plane Shock Absorption Characteristic in Aluminum Honeycombs (in Japanese)

铝蜂窝的面内减震特性（日语）

• 发表时间: 2007
• 作者: Gennichi;UEKI;Koichi;TANAKA;Masahiro;NISHIDA;Tetsuhisa;HAYAKAWA;Yusuke;YONEDA
• 通讯作者: YONEDA

Application of Aluminum Honeycombs for In-Plane Shock Absorber (in Japanese)

铝蜂窝在平面减震器中的应用（日文）

• 发表时间: 2008
• 作者: Yusuke;YONEDA;Gennichi;UEKI;Masahiro;NISHIDA;Koichi;TANAKA
• 通讯作者: TANAKA