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This paper presents an empirical method for determining the axial load distribution generated by the V-band clamps around the flanges. The method utilizes a hydraulic fixture and uniquely designed flanges. The load is measured through strain gages and a pressure transducer. Tests were conducted successfully on a V-band and a nonuniform distribution of axial load was obtained, fitting well with the...
An analytical solution and numerical models are proposed for the buckling and post-buckling behavior of honeycomb sandwich structures under edgewise compression. General buckling and core crushing due to transverse shear are observed in the experiment. Based on these phenomena, the von Kármán plate theory are employed for the analysis for the buckling behavior and the analytical solution for the core...
The purpose of this paper was to investigate the damage tolerance of single-stiffener panels. The impact response and the influence of impact damage on compression behavior were studied. Barely visible impact damage (BVID) was introduced to the stiffener flange tip on the smooth side. By applications of visual inspections and C-scan, massive damage was detected. After the impact experiment, compression...
In this paper a new fast preliminary design analysis tool is presented for identifying structural concept models of composite wing structures with emphasize on bend-twist coupling. The research focused on the analysis of a box-beam load carrying structure of a wing using an in-house code. Results are compared and validated with analytical, numerical and experimental data available in published literature...
The dynamics of angular motion of a space landing vehicle with an inflatable braking device under resonance conditions is studied in this paper. Calculations of the parameters of the angular motion of the landing vehicle are performed using the method developed by the authors, based on the assumption that the deformation of the inflatable braking device occurs in the plane of the spatial angle of...
In this paper, the nonlinear dynamic behavior of the pre-twisted blades based on the Timoshenko beam theory has been investigated. The main purpose of the present work is to study the nonlinear dynamic response of uniform, rotating, cantilever pre-twisted blades. To this end, firstly, the coupled nonlinear equations of motion considering diverse parameters such as the hub radius, rotating velocity...
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