首创精神
发表于 2025-3-23 13:25:44
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制度
发表于 2025-3-23 15:59:32
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CAND
发表于 2025-3-23 19:46:24
Perforated plates and shells,We consider the biharmonic equation . in the domain . with a large number of square holes which are arranged in a periodic manner (Fig. 9.1).
分发
发表于 2025-3-24 01:23:20
Definitions, assumptions and theorems in homogenization problems, with periodic microstructures. The averaging procedure for mechanical fields, the definitions for effective constitutive parameters (effective elastic moduli, for instance) and for corresponding homogenized equations will be described in Section 1.
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发表于 2025-3-24 05:42:39
Reinforced shells, arrangement is taken into account. We consider the middle surface of the skin as the basic surface , so that the rib rigidity depends on its arrangement. The corresponding system of equilibrium equations for the stringer cylindrical shell has the form: ..
Grievance
发表于 2025-3-24 08:08:33
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上下连贯
发表于 2025-3-24 10:46:34
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纹章
发表于 2025-3-24 15:47:31
Leonid I. Manevitch,Victor G. Oshmyan,Igor V. AndrNon-homogeneous media are a classical but still urgent problem in solid mechanics.This monograph reports the current state of homogenization methods.A lot of the presented results have still not been
集中营
发表于 2025-3-24 19:20:58
Foundations of Engineering Mechanicshttp://image.papertrans.cn/m/image/628506.jpg
Critical
发表于 2025-3-25 01:12:07
Introduction, asymptotic methods. The finite element method is one of the most universal numerical procedures. As a rule, it can satisfy the needs of practical engineering, especially concerning the calculations relating to complicated structures like aircraft or ship hulls. However, great developments in numeri