Topic
Finite element limit analysis
About: Finite element limit analysis is a research topic. Over the lifetime, 5778 publications have been published within this topic receiving 175832 citations.
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TL;DR: In this article, the Solidworks software is employed to establish the geometric model, through the interface with finite element software input into the finite element analysis software, the corresponding finite-element analysis model is established.
Abstract: Hydraulic components are key components of hydraulic press, its design quality directly affect the performance of the host and service life. If the improper design, premature failure will cause large economic loss. So the modern design method to structure design, hydraulic components can improve the service life, increase the economic benefit is of great significance. Then Solidworks software is employed to establish the geometric model, through the interface with finite element software input into the finite element analysis software, the corresponding finite element analysis model is established. At last, through the software to the linear static analysis, the model to obtain the mechanical properties of the hydraulic components, it has reference significance to improve the design.
TL;DR: In this article, a local finite element analysis (FEA) for 3D fields is proposed as a method for breaking the bottlenecks of the main memories required and long computation times.
Abstract: The big problems in 3‐D finite element analysis (FEA) are huge main memories required and long computation times. In this paper, the local FEA for 3‐D fields is proposed as a method for breaking these bottlenecks. It is shown that by means of this proposed local method, the 3‐D FEA can be executed by using a minicomputer and the results have high accuracy. The usefulness of this method is shown by applying this to a circular coil with an iorn core and a 3‐phase reactor with air gaps.
01 Oct 1994
TL;DR: In this article, a finite element method based on the use of Whitney forms for the space discretization of the fields and a leap-frog scheme in time is presented, which has both the flexibility related to the finite element mesh conforming to the geometry and the capability of time domain techniques to get overall frequency band responses with one calculation.
Abstract: A finite element method based on the use of Whitney forms for the space discretization of the fields and a leap-frog scheme in time is presented. This method has both the flexibility related to a finite element mesh conforming to the geometry and the capability of time domain techniques to get overall frequency band responses with one calculation. The efficiency of the method is shown through two examples. The accuracy is checked with the case study of a rectangular cavity. A practical case of a via hole with a circular or square cross-section is also studied and compared to experimental data.
10 Dec 2010
TL;DR: In this article, three finite element (FE) models were compared for a self-anchored suspension bridge in order to obtain the appropriate analysis model that provides the basis of long term monitoring and safety evaluation for the bridge.
Abstract: Three finite element (FE) models were compared for a self-anchored suspension bridge in order to obtain the appropriate analysis model that provides the basis of long term monitoring and safety evaluation for the bridge. The shell element and two types of beam elements based on grillage method are used to simulate the steel box stiffening girder of the bridge. One of the beam elements is the element of Timoshenko beam that can consider not only the bending deflection but also shear deformation. The other is the element of Euler-Bernoulli beam that considers the bending deflection but neglects the shear deformation. Four measurement data of the equivalent stress on the bottom plate of the steel box are used to test the three finite element models. The calculating results of equivalent stresses on the bottom plates are compared among the three different finite element models under the dead load. The equivalent stresses obtained by using the shell element model at the four measurement points closes to the actual measurement data. The tensile stresses of suspenders are studied for the three different finite element models. The numerical results demonstrated that the shell element model is the appropriate model for simulating steel box stiffening girder of the self-anchored suspension bridge. The beam element model is not ideal for simulating the steel box girder.
01 Dec 2004
TL;DR: In this article, a generalized method for generating the necessary load curves for the finite element input from CTH has been developed at ARL by using the Interdisciplinary Computing Environment (ICE).
Abstract: : A generalized method for generating the necessary load curves for the finite element input from CTH has been developed at ARL by using the Interdisciplinary Computing Environment (ICE). While others have successfully coupled CTH with finite element codes in the past, this method accurately represents the finite element model's geometry on the Eulerian mesh and can be applied to any code with a pressure vs. time element loading capacity. An accurate representation of the finite element model is inserted into the CTH mesh even if the model contains shell elements.