【技术经理,清远先导稀有材料有限公司】前程无忧官方招聘网站.docVIP

【技术经理,清远先导稀有材料有限公司】前程无忧官方招聘网站 woven unit cells under biaxial tension and in-plane shear is proposed for the simulation of fabric forming. The simulation is made within an explicit dynamic approach and is based on a simplified dynamic equation accounting for tension and in-plane shear strain energy. The biaxial tensile properties (given by two surfaces) and the in-plane shear properties (given by a curve) can be determined both by biaxial tensile tests and picture frame experiments or obtained by mesoscopic 3D finite element analyses of the woven unit cell. The interior load components of the proposed finite element are calculated explicitly and simply from the tensions and shear torque on four woven cells. The results obtained by the simulations of a hemispherical forming process on a very unbalanced fabric are compared to experiments. It is shown that the tension strain energy permits to describe the asymmetry of the response but that the computation of wrinkles and of the deformed states when the locking angle is exceeded needs to take the in-plane shear stiffness and its evolution with shear angle into account. Article Outline 1. Introduction 2. Simplified dynamic equation for fabrics 3. Experimental analyses of the woven unit cell mechanical behaviour 3.1. Biaxial tensile test 3.2. In-plane shear experimental analysis 4. 3D finite element analyses of the woven unit cell mechanical behaviour 5. A finite element for fabric forming simulation accounting for tension and shear stiffness 6. Influence of the shear stiffness in a fabric forming process simulation 7. Conclusions Acknowledgements References Purchase 346 Analysis of mean and mean square response of general linear stochastic finite element systems Original Research Article Computer Methods in Applied Mechanics and Engineering, Volume 195, Issues 41-43, 15 August 2006, Pages 5454-5471 Vissarion Papadopoulos, Manolis Papadrakakis, George Deodatis Close preview | Related articles | Related refe