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您的检索式：作者名="A. Darvizeh"
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| 1 | Investigation of Microstructure, Natural Frequencies and Vibration Modes of Dragonfly Wing显示文摘 | H. Rajabi M. Moghadami A. Darvizeh | 2011 | Journal of Bionic Engineering2011，8，2： | 12 |
| 2 | Experimental investigations of the functional morphology of dragonfly wings显示文摘Nowadays, the importance of identifying the flight mechanisms of the dragonfly, as an inspiration for designing flapping wing vehicles, is well known. An experimental approach to understanding the complexities of insect wings as organs of flight could provide significant outcomes for design purposes. In this paper, a comprehensive investigation is carried out on the morphological and microstructural features of dragonfly wings. Scanning electron microscopy (SEM) and tensile testing are used to experimentally verify the functional roles of different parts of the wings. A number of SEM images of the elements of the wings, such as the nodus, leading edge, trailing edge, and vein sections, which play dominant roles in strengthening the whole structure, are presented. The results from the tensile tests indicate that the nodus might be the critical region of the wing that is subjected to high tensile stresses. Considering the patterns of the longitudinal corrugations of the wings obtained in this paper, it can be supposed that they increase the load-bearing capacity, giving the wings an ability to tolerate dynamic loading conditions. In addition, it is suggested that the longitudinal veins, along with the leading and trailing edges, are structural mechanisms that further improve fatigue resistance by providing higher fracture toughness, preventing crack propagation, and allowing the wings to sustain a significant amount of damage without loss of strength. | H. Rajabi A. Darvizeh | 2013 | Chinese Physics B2013，22，8： | 2 |
| 3 | Postbuckling analysis of functionally graded graphene platelet-reinforced polymer composite cylindrical shells using an analytical solution approach显示文摘An analytical approach is proposed to study the postbuckling of circular cylindrical shells subject to axial compression and lateral pressure made of functionally graded graphene platelet-reinforced polymer composite (FG-GPL-RPC). The governing equations are obtained in the context of the classical Donnell shell theory by the von K′arm′an nonlinear relations. Then, based on the Ritz energy method, an analytical solution approach is used to trace the nonlinear postbuckling path of the shell. The effects of several parameters such as the weight fraction of the graphene platelet (GPL), the geometrical properties, and distribution patterns of the GPL on the postbuckling characteristics of the FG-GPL-RPC shell are analyzed. | S. BLOORIYAN R. ANSARI A. DARVIZEH R. GHOLAMI H. ROUHI | 2019 | Applied Mathematics and Mechanics(English Edition)2019，40，7： | 2 |
| 4 | Experimental analysis and numerical modeling of mollusk shells as a three dimensional integrated volume显示文摘 | M. Faghih Shojaei V. Mohammadi H. Rajabi A. Darvizeh | 2012 | Journal of the Mechanical Behavior of Biomedical Materials2012，，： | 1 |
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