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ABSTRACT

Yu.A. Goritskiy¹, D.G. Tigetov¹
The International Conference on Computational & Experimental Engineering and Sciences, Vol.14, No.4, pp. 99-102, 2010, DOI:10.3970/icces.2010.014.099
Abstract It is well-known that process of friction depends immensely on the surface roughness. Also, surfaces change while in friction. Roughness change is influenced by many factors such as shape of asperities, physical characteristics of materials, load, sliding velocity, lubricant and others. It was shown experimentally that roughness reaches a steady form (known as ``equilibrium roughness'') while running-in process. It is ``equilibrium roughness'' that determines a stationary friction mode. More >

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577

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ABSTRACT

K.C. Liao¹, C.L. Chen¹
The International Conference on Computational & Experimental Engineering and Sciences, Vol.14, No.4, pp. 103-112, 2010, DOI:10.3970/icces.2010.014.103
Abstract A Taylor-type crystalline plasticity model, implemented into the commercial finite element analysis software, is coded as a subroutine to investigate the behavior of a stainless steel sheet with a body centered cubic (BCC) structure in the current study. Thickness variations of the sheet are examined under the micro-groove formation procedures. Effects of the spatial distribution of crystallographic orientations on the thickness distribution over the sheet are also demonstrated. Numerical results, based on the sheet with textured orientations, are in good agreement with the associated experimental measurements reported in the literature. More >

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628

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Alain Stricher¹, Laurent Champaney¹, François Thiebaut², Benoit Fricero³, Nicolas Chevassus³
The International Conference on Computational & Experimental Engineering and Sciences, Vol.14, No.4, pp. 113-114, 2010, DOI:10.3970/icces.2010.014.113
Abstract In order to combine the lightweight and the stiffness of aeronautic structures in spite of their large size, they are built up by assembling many parts, one or two dimensions of which are much smaller than the others (beam, shells). As a consequence, assembling processes are difficult because of the flexibility of the parts. They can bend out under their own weight, which makes it necessary to use a lot of equipment, assembling jigs and clamping fixtures. Furthermore, many parts must be bent by clamping action before being assembled with fasteners. These assemblies have a high degree of static indeterminacy… More >

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566

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ABSTRACT

Ming-Hsiao Lee^1,2, Wen-Hwa Chen^1,3
The International Conference on Computational & Experimental Engineering and Sciences, Vol.14, No.4, pp. 115-124, 2010, DOI:10.3970/icces.2010.014.115
Abstract The meshless method has a distinct advantage that it needs only nodes without an element mesh which usually induces time-consuming work and inaccuracy when the elements are distorted during the analysis process. However, the element mesh provides the geometric information for numerical simulation without the need to judge if the nodes or integration points are inside the analysis domain as in the meshless method, such as the boundary of the analysis domain which is defined by the element's edges or faces and that the integration points are intrinsically inside the elements. Because the analysis model with only nodes in the… More >

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