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The Finite Element Method (FEM) is commonly used to simulate isotropic deformable objects in computer graphics. Several applications (wood, plants, muscles) require modeling the directional dependence of the material elastic properties in three orthogonal directions. We investigate linear orthotropic materials, a special class of linear anisotropic materials where the shear stresses are decoupled...
Due to the high corrosion, high strength-to-weigh ratio and low thermal conductivity, the fiber reinforced polymer(FRP) materials are increasingly being used for the large diameter pipe, which is used to transport hot water. The temperature of the hot water is 45°C, and the ambient air temperature is 3°C in the extreme working conditions. So the strength analysis is necessary under thermal and internal...
Irregularity of the fixed frog affects the passage velocity and the comfort of urban railway vehicles. To reveal this irregularity, based on the Finite Element Method (FEM) computational models were set up. The models included the contact between the worn tread wheel of Dalian tram and the 50kg/m rail as well as the different sections of No. 9 fixed frog. The results were used to find the laws of...
According to the distributing characteristic of residual stresses in aluminum alloy plate, this paper adopted modified layer removal method (MLRM) to measure it; based on elastic mechanics theory the solving process was deduced. Using finite element method the process of MLRM was simulated, by loading specimen with a known original stress distribution the stress was worked out with strain datum from...
Mechanical properties of two contrasting rice cultivars, P64S/E32 and SY63, were measured using 3-point bending tests performed on segments taken at the base and top of plant stems. The parameters of an elastic-plastic material constitutive law were fitted using a finite beam element model reproducing the 3-point bending tests. Both measured data and constitutive laws were compared between cultivars...
This study deals with the stochastic free vibration response of a laminated composite plate resting on a elastic foundation subjected to a temperature loading with uncertain material properties. The material properties are modeled as independent basic random variables. The temperature field considered is assumed to be a uniform distribution over the plate surface and through the plate thickness. The...
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