3D Remeshing Simulation of Aluminum Foams Behavior under Static Load

2015 ◽  
Vol 1099 ◽  
pp. 17-24
Author(s):  
Shi Jie Zhu ◽  
Abel Cherouat ◽  
Houman Borouchaki ◽  
Xiao Lu Gong
Keyword(s):  
Metal Foam ◽  
Aluminum Foams ◽  
Compression Behavior ◽  
Open Cell ◽  
Macroscopic Models ◽  
Error Estimations ◽  
Program Transfer ◽  
Explicit Solver ◽  
As Stress ◽  
Compression Characteristics

The compression characteristics of open-cell aluminum foams were experimentally and numerically investigated. It is found that the mechanical parameters, such as collapse stress and absorbed energy, are dependent on the porosity of aluminum foams. Three macroscopic models were chose to predict the compression behavior of open-cell foams. During simulation of metal foam compression, the finite elements distort severely at the local regions with high gradient of physical field such as stress, strain due to these problems. The procedure integrates Explicit solver of ABAQUS, OPTIFORM mesher and python script program transfer to execute step by step the incremental deformation process. At each step, the meshes are refined and coarsened automatically based on geometrical and physical error estimations; the physical fields are transferred from old to the new one using advanced algorithm.

3D Numerical Simulation of Aluminum Foams Behavior in Large Deformation

2015 ◽  
Vol 749 ◽  
pp. 3-7
Author(s):  
Abel Cherouat ◽  
Shi Jie Zhu ◽  
Houman Borouchaki ◽  
Xiao Lu Gong
Keyword(s):  
Metal Foam ◽  
Deformable Body ◽  
Mechanical Parameters ◽  
Aluminum Foams ◽  
Absorbed Energy ◽  
3D Numerical Simulation ◽  
Open Cell ◽  
Program Transfer ◽  
Explicit Solver ◽  
Compression Characteristics

The compression characteristics of open-cell aluminum foams were experimentally and numerically investigated. It is found that the mechanical parameters, such as collapse stress and absorbed energy, are dependent on the porosity of aluminum foams material. During simulation of metal foam compression, the finite elements distort severely at the local regions with high gradient of physical field. The procedure integrates Explicit solver of Abaqus FEA, 3D Optiformmesher and Python script program transfer to execute step by step the incremental deformation of deformable body.

3D Thermo-Mechanical Simulation Coupled with Adaptive Remeshing for Metal Milling

2013 ◽  
Vol 698 ◽  
pp. 11-20 ◽  
Author(s):  
Jie Zhang ◽  
Abel Cherouat ◽  
Houman Borouchaki
Keyword(s):  
Plastic Flow ◽  
Material Model ◽  
Milling Process ◽  
Contact Friction ◽  
Adaptive Remeshing ◽  
Error Estimations ◽  
Program Transfer ◽  
Explicit Solver ◽  
Point To Point ◽  
As Stress

As a material removal process, metal milling process involves large geometry deformation, material thermo-visco-plastic flow coupled with damage and complex contact-friction problems. During simulation of metal milling, the finite elements distort severely at the local regions with high gradient of physical field such as stress, strain and temperature due to these problems. This paper presents numerical adaptive remeshing procedure dedicated to metal milling process. The procedure integrates Explicit solver of ABAQUS, OPTIFORM mesher and python script program transfer to execute step by step the incremental milling process. At each step, the meshes are refined and coarsened automatically based on geometrical and physical error estimations; the physical fields are transferred (point to point) from old to the new one using advanced algorithm. Johnson-cook material model is used to simulate the material plastic flow with ductile damage. Some numerical results are given to demonstrate the efficiency of the proposed procedure.

Convective Heat Transfer Analysis of Open Cell Metal Foam for Solar Air Heaters

Solar Energy ◽  
2003 ◽  
Author(s):  
Nihad Dukhan ◽  
Pablo D. Quinones
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Effective Thermal Conductivity ◽  
Metal Foam ◽  
Heat Transfer Analysis ◽  
Transfer Model ◽  
Aluminum Foams ◽  
Maximum Heat ◽  
Open Cell ◽  
Maximum Heat Transfer

A one-dimensional heat transfer model for open-cell metal foam is presented. Three aluminum foams having different areas, relative densities, ligament diameters, and number of pores per inch were analyzed. The effective thermal conductivity and the heat transfer increased with the number of pores per inch. The effective thermal conductivity of the foams can be up to four times higher than that of solid aluminum. The resulting improvement in heat transfer can be as high as 50 percent. The maximum heat transfer for the aluminum foams occurs at a pore Reynolds number of 52. The heat transfer, in addition, becomes insensitive to the flow regime for pore Reynolds numbers beyond 200.

Thermal-Hydraulic Optimization of Open Cell Metallic Foams Used as Extended Surfaces

2021 ◽  
Author(s):  
Sunil Mehendale
Keyword(s):  
Heat Transfer ◽  
Metal Foam ◽  
Geometric Mean ◽  
Optimization Technique ◽  
Optimization Criterion ◽  
Metallic Foams ◽  
Pumping Power ◽  
Aluminum Foams ◽  
Open Cell ◽  
Goodness Factor

Abstract A one-dimensional analytical validated model for predicting temperature distribution, heat transfer, pressure drop, and fluid pumping power in an open cell metal foam (OCMF) fin is developed. A foam length optimization technique based on its performance factor (PF) is proposed. Every optimized foam's efficiency is shown to be 33.2%, regardless of its PPI or porosity. Although it can be applied to other porous materials, the model has been illustrated for aluminum foams with 5-40 pores per inch (PPI) and 0.88-0.96 porosity (e). The highest PPI, lowest porosity foam gives the best unit area goodness factor f_u=j_H/f, heat transfer, and heat transfer per unit volume Q ?_V, while the greatest goodness factor f (heat transfer rate to fluid pumping power) is achieved by the lowest PPI, lowest porosity foam. The highest PPI, highest porosity foam yields the best heat transfer per unit mass Q ?_M. Thus, optimum foam selections strongly depend on the application. An often used fin optimization criterion recommends that the fin effectiveness should equal or exceed 2. The present study shows that the effectiveness of any optimized foam always exceeds 2. However the converse, i.e., requiring the foam effectiveness to at least equal 2, does not guarantee an optimal foam, which implies that the PF-based optimization criterion is an inclusive one. It is also proved that a previously suggested optimization criterion of maximizing a foam's geometric mean efficiency will result in a sub-optimal foam design.

Numerical Simulation of Open-Cell Aluminum Foams under Compression

2012 ◽  
Vol 504-506 ◽  
pp. 1219-1224 ◽  
Author(s):  
Fabrizio Quadrini ◽  
Denise Bellisario ◽  
Daniele Ferrari ◽  
Loredana Santo
Keyword(s):  
Numerical Simulation ◽  
Base Material ◽  
Element Model ◽  
Laser Forming ◽  
Compression Tests ◽  
Aluminum Foams ◽  
Compression Behavior ◽  
Open Cell ◽  
Forming Simulation ◽  
Alloy Base

The numerical simulation of the compression behavior of open-cell aluminum foams is discussed as a way to extract material property information for laser forming simulation. A bilinear isotropic model was implemented for the alloy base material whereas a parametric approach was used to build the finite element model of the foam structure. Compression tests were performed on commercial foams with different pore size and density, and the results of lower density foam were used for the model validation. Numerical results show a good agreement with experimental data in terms of foam deformation under compression and required loads.

Experimental study of particulate fouling in partially filled channel with open-cell metal foam

2020 ◽  
Vol 110 ◽  
pp. 109941 ◽  
Author(s):  
F. Shikh Anuar ◽  
Kamel Hooman ◽  
M.R. Malayeri ◽  
Iman Ashtiani Abdi
Keyword(s):  
Experimental Study ◽  
Metal Foam ◽  
Open Cell ◽  
Particulate Fouling

Experimental and numerical thermal analysis of open-cell metal foams developed through a topological optimization and 3D printing process

2018 ◽  
Vol 83 (1) ◽  
pp. 10904 ◽  
Author(s):  
Abdelatif Merabtine ◽  
Nicolas Gardan ◽  
Julien Gardan ◽  
Houssem Badreddine ◽  
Chuan Zhang ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
3D Printing ◽  
Numerical Simulations ◽  
Lattice Model ◽  
Metal Foam ◽  
Complex Geometry ◽  
Metal Foams ◽  
Topological Optimization ◽  
Plaster Mold ◽  
Open Cell

This study focuses on the thermal analysis and comparing a lattice model and an optimized model of open-cell metal foams manufactured thanks to a metal casting process. The topological optimization defines the complex geometry through thermal criteria and a plaster mold reproduces it in 3D printing to be used in casting. The study of the thermal behavior conducted on the two open foam metal structures is performed based on several measurements, as well as numerical simulations. It is observed that the optimized metal foam presented less and non-homogenous local temperature than the lattice model with the gap of about 10 °C between both models. The pore size and porosity significantly affect the heat transfer through the metal foam. The comparison between numerical simulations and experimental results regarding the temperature fields shows a good agreement allowing the validation of the developed three-dimensional model based on the finite element method.

Sign in / Sign up

Export Citation Format

Share Document