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The analysis of three-dimensional (3D) braided composites is difficult due to its complex microstructure. A novel representative unit cell (RUC) and shear specimen model is introduced to predict elastic properties and failure behavior of 3D 8-harness satin weave composites fastener under shear load. The RUC model is developed to predict engineering constants of composites in several damage status...
The common challenge of all aerospace advancements is greening the air transport. This led the recent research programs towards the study of “metamorphic” wing structures, capable of adapting their geometry to the different conditions of flight. The development of morphing structures allows the reduction of drag and the increase of range, together with the growth of load control effectiveness. In...
As a kind of novel porous structure with high strength relative to low mass, lattice structure infilling can attain a lightweight structure while maintaining the high specific mechanical properties in the 3D solid structures. Focusing on the deficiency of the non-optimized macro-material distribution in the traditional lattice infilling, a design and modeling method of variable-density 3D lattice...
The most important task for 3D assembly tolerance analysis is to check how the tolerances affect the quality or functionality of a product when the parts are assembled together. This paper presents the way 3D statistical tolerance analyses are implemented by integrating the unified Jacobian-Torsor model and Monte Carlo simulation techniques. To perform 3D statistical tolerance analysis, a unified...
One of the main advantages of Additive Manufacturing (AM) is that the internal volume of a part has no longer to be solid. Different infill structures can be implemented inside the internal volume, with the ability to control the filling percentage. Cellular based structures have a self-repairing and fault-tolerance properties, which makes them a potential candidate for bio-mimicking structures. These...
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