A highly directional and enhanced elastic transverse wave source with a half power angular width of only 5.6° and an enhancement factor of 530 is realized simply by utilizing a finite-size 2D solid PC structure.
A three-dimensional thermomechanical simulation of friction stir welding (FSW) processes is carried out for ferritic stainless steel by utilizing an Eulerian finite volume method under the steady state condition, and the simulation result is compared directly with both the measured temperature histories during FSW and the microstructural changes after FSW.
By utilizing a novel switching function, the derivative of the switching function is ensured to be finite variation.
The 3D model utilizes a finite differencing (FD) heat transfer algorithm, complemented with experimental boundary conditions.
Initial, in-plane stresses arising within the plate are determined by two methods, one utilizing a standard finite element procedure, and another which takes the plane elasticity solution for a point-loaded circular disk as fundamental and eliminates the residuals along the rectangular boundaries by finite elements.
First, the coupled hygrothermal field along the radius of a rotating circular disk is achieved by solving the coupled hygrothermal equations, and then the dynamic equilibrium is solved by utilizing the finite difference method.
By utilizing the finite element method (FEM), the present-day in-situ stress field in the western Guizhou was numerically analyzed based on a geomechanical two-dimensional (2D) model.
By utilizing the finite element method, we can incorporate as much prior information as possible into the solution of the inverse problem, thereby improving the quality of a current image.
Instead, by utilizing the finite strip method for stability analysis and the Direct Strength Method for the strength calculation, the full solution space of cold-formed steel shapes may be explored.
By utilizing the finite element analysis (FEA) to analyze the stress distribution of sensitive elements and subsequently deducing the relationships between structural dimensions and mechanical performance, the optimization process makes the sensor achieve a higher sensitivity and a lower pressure nonlinearity.
Moreover, it is shown that the purposed method removes the immense effort required in coding ones own finite element codes by utilizing already existing finite element software.
