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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A decoupled, linear, and unconditionally energy stable finite element method for a two-phase ferrohydrodynamics model
两相铁 流体动力学模型 无条件能量稳定 有限元方法
2023/4/28
In this talk, we present numerical approximations of a phase-field model for two-phase ferrofluids, which consists of the Navier-Stokes equations, the Cahn-Hilliard equation, the magnetostatic equatio...
Finite deformation formulation for embedded frictional crack with the extended finite element method
finite deformation frictional crack embedded discontinuity extended finite element
2015/7/1
We reformulate an extended finite element (FE) framework for embedded frictional cracks in elastoplastic solids to accommodate finite deformation, including finite stretching and rotation. For the FE ...
Stabilized low-order finite elements for frictional contact with the extended finite element method
Extended finite element Frictional contact Lagrange multipliers Penalty method Stabilized methods
2015/7/1
Contact problem suffers from a numerical instability similar to that encountered in incompressible elasticity, in which the normal contact pressure exhibits spurious oscillation. This oscillation does...
A contact algorithm for frictional crack propagation with the extended finite element method
contact algorithm frictional crack extended finite element method
2015/7/1
We present an incremental quasi-static contact algorithm for path-dependent frictional crack propagation in the framework of the extended finite element (FE) method. The discrete formulation allows fo...
Electromagnetic Modeling of Photolithography Aerial Image Formation Using the Octree Finite Element Method
aerial image finite element method photolithography electromagnetics octree simulation
2014/12/8
Modern semiconductor manufacturing requires photolithographic printing of subillumination wavelength features in photoresist via electromagnetic energy scattered by complicated photomask designs. This...
Virtual Reconstruction of Long Bone Fracture in Car-to-pedestrian Collisions Using Multi-body System and Finite Element Method
passenger car pedestrian accident lower limb FE model long bone fracture
2011/8/4
Lower limb injures are frequently observed in passenger car traffic accidents. Previous studies of the injuries focus on long bone fractures by using either cadaver component tests or simulations of t...
Improved nearest-nodes finite element method with field-consistent shape functions
Nearest-nodes finite element method Euler-Lagrange equations
2010/11/25
In this paper, the recently developed nearest-nodes finite element method (NN-FEM) was improved by introducing field-consistent shape functions. Field-consistent shape functions are constructed in two...
Abrasive Waterjet Machining Simulation by Coupling Smoothed Particle Hydrodynamics/Finite Element Method
abrasive waterjet machining randomized algorithm coupling SPH/FEM
2011/8/3
In dealing with abrasive waterjet machining(AWJM) simulation, most literatures apply finite element method(FEM) to build pure waterjet models or single abrasive particle erosion models. To overcome th...
Buckling Analysis for Members with Variable Rigidity by Using the Finite Element Method
stability analysis critical buckling load variable rigidity analytical and numerical methods finite element
2010/8/18
The stability analysis for compressed bars with variable rigidity is studied, by using the finite element method (FEM) in Galerkin’s variant. The general shape of elastic and geometrical stiffness mat...
Parametric study on supersonic flutter of angle-ply laminated plates using shear deformable finite element method
Panel flutter Angle-ply laminates Fiber orientation Flow yaw angle Length-to-thickness ratio
2012/2/29
The influence of fiber orientation, flow yaw angle and length-to-thickness ratio on flutter characteristics of angle-ply laminated plates in supersonic flow is studied by finite element approach. The ...
A NEW MULTIFIELD FINITE ELEMENT METHOD IN STEADY STATE HEAT ANALYSIS
steady state heat finite elements mixed formulation
2009/10/13
A new original primal-mixed finite element approach and related hexahedral finite element for the analysis of behavior of solid bodies under thermal loading is presented. The essential contributions o...
THE VEINING STRUCTURE METHOD, THE FINITE ELEMENT METHOD IN THERMAL DEFORMATION DETERMINATION FOR THE MAIN SPINDLE AT NUMERICHAL CONTROL LATHES
finite element thermal deformation main spindle
2009/10/13
In the determination of the process accuracy on CNC lathe it is very important to know the thermal deformations. This article presents a new solution to obtain the thermal deformations at the principa...
Analysis of Propagation Behaviour of a Subsurface Crack by the Finite Element Method
Sonlu elemanlar metodu Gerilme lsiddet faktoru Clatlak yayilimi
2009/10/13
When contacting surfaces have relative motion, applied normal and tangential forces cause stresses on surfaces and subsurfaces. If these forces are applied cyclically, they cause crack propagation in ...
Modelling of Fracture Toughness in Steel Laminates with a Finite Element Method
Finite element method J integral Laminates Interfacial strength Delamination
2009/10/10
The fracture toughness of laminates in which both phases are ductile is modeled with nite element analyses in terms of JIC. The models employed were an exact analogue of compact tension test pieces l...
plane Deformation of a Textile Material with Boundary Forces Using Finite Element Method
plane Deformation Textile Material Boundary Forces Finite Element Method
2010/1/15
plane Deformation of a Textile Material with Boundary Forces Using Finite Element Method.