| Project/Area Number |
07650551
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
構造工学・地震工学
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| Research Institution | OSAKA CITY UNIVERSITY |
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Principal Investigator |
KOBAYASHI Harutoshi Osaka City University, Faculty of Engineering, Department of Civil Engineering, Associate Professor, 工学部, 助教授 (40047395)
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| Co-Investigator(Kenkyū-buntansha) |
KITOH Hiroaki Osaka City University, Faculty of Engineering, Department of Civil Engineering,, 工学部, 助手 (40177879)
SONODA Keiichiro Osaka City University, Faculty of Engineering, Department of Civil Engineering,, 工学部, 教授 (70047108)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Impact response / Stress wave propagation / Surface wave / Elastodynamics / Eigenfunction expansion / Anisotropy / Surface structures / Plane strain state / Plates |
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| Research Abstract |
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.
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