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Thermal stress and deformation depended on CCD Si3N4/SiO2/Si composite dielectrics thickness was simulated by ANSYS. The simulation results were indicated that the thermal stress of each dielectric film was constant and did not depend on the dielectrics thickness, and the deformation distribution was ring from vertical view, and the extremal deformation was located in the structure center whatever...
A novel and efficient method to simulate the behavior of guidewires in the vascular system is proposed in this paper. The graph-theoretical method is based on the principle of minimal total potential energy. We formulate the total potential energy in the vascular interventional system as the summation of the elastic energy of the guidewire and the energy due to the deformation of the vessel wall....
The finite element program is applied to analyze the deformation of composite wall cladding panel in horizontal load and then the verification is carried out through experiment, providing theoretical basis for calculating the stiffness of new type composite wall cladding panel.
In the last half a century, the complexity of electronic systems has undergone a sustainable rapid development stage following the Moore's law: the density of integrated circuits (ICs) was doubled every two years. As a result, electronic devices become more miniaturized in space and contain more power in unit volume. Electronic package has to deal with highly increased I/Os with fine soldering pitch...
The gap between the rotor and the stator of the external circulation piston pump has an important impact on pump efficiency and operation reLiabiLity. Shaft and rotor are important parts of the external circulation piston pump. The gap value is determined by the shaft flexural deformation. According to the force of the rotor and shaft, the relevant module of the software ANSYS was appLied to give...
Taken earth dam reinforcement engineering of DaShan reservoir as an example, considered the couple effect of seepage field and stress field and the contact effect between concrete core-wall and soil body, the elastic-plasticity finite element model (FEM) of concrete core-wall earth dam after reinforcement is set up. The concrete core-wall deformation and stress after reinforcement are calculated and...
In this paper, the air door structure is analyzed and the deformed position is obtained by using the finite element analysis method according to the actual situations of the traditional structure of mine air door, and on this basis, a new air door structure which can withstand the increasing pressure is designed, this new structure solve the problem of easy deformation of the air door.
A truck gearbox was chosen as research object of the text. 3D model of transmission gear was firstly built up by using SolidWorks software, and the Simulation module was utilized for modal analysis of transmission gear by using finite element method. The modal forms and deformation extent of transmission gear under several frequencies were gained and analyzed the maximum displacement deformation of...
Deformations of metal interconnects, cracks in interlayer dielectrics and passivation layers in combination with plastic-packaging are still a major reliability concern for integrated circuit power semiconductors. In order to describe and understand the failure mechanism and its root cause, already a lot of work has been done in the past. However for the first time the impact of the edge profile of...
Vacuum glazing is a new energy-saving material; the damage of it is caused mainly by the tensile stress. In this paper, stress distribution and parameters of vacuum glazing effect on stress and deformation have been researched according the Atmospheric effects using finite element method. The paper suggests that support pillar spacing and change of glazing thickness have larger influence on stress...
Hot rolling cogging can make full use of the high temperature plasticity of alloy, and it can provide large volumes of heavy strip. Besides, it has the characteristics of small deformation resistance and high productivity. Therefore more than 90 percent of copper and copper alloy strip in the world are produced by using hot rolling cogging. The paper presents details of simulation and analysis of...
Underground Culvert construction always adjacent to existing pile foundation, it is an important problem how to ensure the security of the existing pile. Taking the Underground Culvert at West Ring Road of the South-North Water Transfer Project as an example, the 3D numerical simulation had been carried out and the stress deformation Law and the stability of the pile was studied. The results had shown...
The conventional brace appears buckling easily under the strong earthquake. and it can not meet the demand of the structure. The hysteretic behavior is stable and the energy absorption capacity is good. The buckling - restrained brace (BRB) can undergo fully reversed axial yield cycles without loss of stiffness and strength. Ocean platform structure is complicated, and the surrounding environment...
Finite element analysis was done to research the seismic behavior of brick walls strengthened with CFRP. Comparison on the bearing load capacity, deformation and reinforcement effect of different methods between the unreinforced and CFRP-reinforced walls shows that the method of external bonding CFRP can effectively improve the deformation capacity of brick masonry walls and enhances their shear capacity...
The mechanical fit between the connecting rod's small head and the bush is a typical interference fit. The thick cylinder model is applied to calculate the theoretical stress on the surface of the small head for this fit. By the contact finite element method, the simulation model is used to get the stress and deformation by constructing the true interference of fit bodies. The stress on the connecting...
The processes of pipe collapse under external pressure have be calculated and simulated by means of the ANSYS FEA. It introduces the destruction theory of the pipe and some formula by API, and analyses the factors such as geometries, pressure, and its properties, which affect the capability of the resistance to the pipe collapse. The relationship between strain and stress of pipe has been descried...
Based on illuminating the structure, working principle and force analysis of mobile electron radar, the finite element analysis of sheet metal shell is carried out on ANSYS Workbench (AWE) platform. First, the structure of sheet metal shell is simplified, then the 3D entity model and meshing model of sheet metal parts both are established. Secondly, the material attribute, contact type, load and constraints...
In the forming process of V-type ring groove on steel pipe by hot skew rolling, because the technology and metal flow characteristics in skew rolling process result in deformation of internal wall during modeling process and the deformation effects directly on the dimensional accuracy of parts. This paper is to analysis finite element simulation of the forming process of V-type ring groove by hot...
Without any additional element, noncontinuous deformation of body can be simulated efficiently by interface element. The element stiffness matrix and interface stress are derived, which is based on the principle of virtual work. The steps given in the theoretical development were implemented in the computer program. A homogeneous cantilever beam and a composite structure were taken for examples to...
Considering the interaction of anchor foundation and soil, the three-dimension nonlinear finite element model was founded based on ADINA software, for the concreting construction and running process of north anchor foundation of Runyang suspension bridge. By the numerical simulation from the construction to running process, the change law of the contact stresses and deformation of gravitational rock-socketed...
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