Forging and Extrusion Analysis with LS-DYNA using 3D Adaptive EFG Method
نویسندگان
چکیده
With the recent improvements in adaptive procedure, adaptive mesh-free method has become an important tool to solve the 3D forging and extrusion problems that usually involve large topology change with severe local deformation. In this paper, the implicit version of 3D adaptive EFG method with emphases on the state variable transfer between successive discretizations is presented, and several problems are used to illustrate the effectiveness of the proposed approach. A massively parallel processing (MPP) of adaptive EFG is implemented for the 3-D analysis, and the scalability test is conducted on the highly deformable inelastic example problems.
منابع مشابه
Finite Element Limit Load Analysis of Thin-walled Structures by Ansys (implicit), Ls-dyna (explicit) and in Combination
After discussing general properties of implicit Finite Element analysis using ANSYS and explicit analysis using LS-DYNA it is shown when and how quasi-static limit load analyses can be performed by a transient analysis using explicit time integration. Then we focus on the remaining benefits of implicit analysis and how a proper combination of ANSYS and LS-DYNA can be used to prepare the transie...
متن کاملAccurate Modeling and Nonlinear Finite Element Analysis of a Flexible-Link Manipulator
Accurate dynamic modeling and analysis of flexible link manipulator (FLM) with non linear dynamics is very difficult due to distributed link flexibility and few studies have been conducted based on assumed modes method (AMM) and finite element models. In this paper a nonlinear dynamic model with first two elastic modes is derived using combined Euler/Lagrange and AMM approaches. Significant dyn...
متن کاملFujitsu’s Activities in Improving Performance of LS-DYNA Nonlinear Finite Element Analysis Software
The LS-DYNA nonlinear finite element analysis software package developed for structural analysis by the Livermore Software Technology Corporation (LSTC) is widely used by the automobile, aerospace, construction, military, manufacturing, and bioengineering industries. Fujitsu has been a partner with LSTC since 1996, supporting customers in Japan. A common application of LS-DYNA is car crash simu...
متن کاملModeling & Comparison of Mechanical Behavior of Foam Filled & Hollow Aluminum Tubes by LS-DYNA & Introducing a Neural Network Model
Energy absorption capability of thin-walled structures with various cross sections has been considered by researchers up to now. These structures as energy absorbers are used widely in different industries such as automotive and aerospace and protect passengers and goods against impact. In this paper, mechanical behavior of thin-walled aluminum tubes with and without polyurethane foam filler su...
متن کامل