Study of Method of Impact Response Analysis of Anisotropic Surface Structures

各向异性表面结构冲击响应分析方法研究

• 批准号: 07650551
• 负责人: KOBAYASHI Harutoshi
• 金额: $ 1.34万
• 依托单位: OSAKA CITY UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650551/
• 关键词: Impact response; Stress wave propagation; Surface wave; Elastodynamics; Eigenfunction expansion; Anisotropy; Surface structures; Plane strain state; Plates

Transient elastic waves inside a transversely isotropic surface structures are investigated. Exact analytical method is developed using the eigenfunction expansion and extended IIu's potential function based on the theory of three dimensional elastodynamics. Numerical calculations are made for impact response problems of circular plates, plates in plane strain state, infinite plates and infinite strips. Numerical results at some locations of interest are shown for a partially distributed uniform load suddenly applied on a plate top surface. Comparisons between the results of isotropic and transversely isotropic cases are made in detail. Maximum stress reponse is sligthly affeced using tranversely materials. In the case of transversely, infinite plate, the surface stress is significantly affeced by the surface wave (Reyleigh wave), and then very sharp and discountinuos stress responses are seen.

研究了横观各向同性表面结构内的瞬态弹性波。基于三维弹性动力学理论，利用本征函数展开和扩展IIu势函数发展了精确解析方法。对圆形板、平面应变状态板、无限板和无限条的冲击响应问题进行了数值计算。显示了一些感兴趣位置处突然施加在板顶表面上的部分分布均匀载荷的数值结果。详细比较了各向同性和横观各向同性情况的结果。使用横向材料时，最大应力响应会受到轻微影响。在横向无限长板的情况下，表面应力受到表面波（瑞利波）的显着影响，然后可以看到非常尖锐和折扣的应力响应。

项目成果

小林治俊: "異方性円板の弾性衝撃応答解析" 構造物工学論文集. 43A. 1287-1293 (1996)

Harutoshi Kobayashi：“各向异性盘的弹性冲击响应分析”结构工程学报 43A 1287-1293 (1996)。

Harutoshi, Kobayashi: "Impact Response Analysis of Transversely Isotropic Circular Plates (in Japanese with English Summury)" Journal of Structural Engineering、JSCE. Vol.43A. 1287-1293 (1996)

Harutoshi, Kobayashi：“横向各向同性圆板的冲击响应分析（日文，英文摘要）”结构工程学报，JSCE 第 43 卷 1287-1293（1996 年）。

小林治俊: "異方性板の衝撃応答解析" 第3回落石等による衝撃問題に関する講演論文集. 35-40 (1996)

小林春俊：《各向异性板的冲击响应分析》落石等引起的冲击问题讲座论文集第3期35-40（1996）

Harutoshi Kobayashi: "Impact Response Analysis of Transversely Isotropic Plates in Plane Strain State (in Japanese)" Proc.of 3rd Symposium on Impact Problems in Civil Engineering, JSCE. 35-40 (1996)

Harutoshi Kobayashi：“平面应变状态下横向各向同性板的冲击响应分析（日语）”第三届土木工程冲击问题研讨会论文集，JSCE。

小林治俊: "異方性円板の弾性衝撃応答解析" 構造工学論文集. 43A. (1996)

Harutoshi Kobayashi：“各向异性盘的弹性冲击响应分析”《结构工程学报》43A（1996）。