Experimental Research on Aluminum Foam Dynamics Performance

2013 ◽  
Vol 853 ◽  
pp. 178-181
Author(s):  
Bo Wang ◽  
Yong Zhang ◽  
Rong Jun Chen
Keyword(s):  
Relative Density ◽  
Aluminum Foam ◽  
Material Design ◽  
Material System ◽  
Foam Aluminum ◽  
Filtration Method ◽  
Strain Behavior ◽  
Foam Metal ◽  
Production Preparation ◽  
Aluminum Material

This paper chooses the remit foam aluminum by Shanghai co., LTD provides high pressure filtration method is used to make the opening of aluminum foam material. System research of relative density and strain rate changes on the relative density is high (> = 0.255) of aluminum foam materials shock stress - strain behavior, deformation failure mechanism and the influence law of energy absorption characteristics. These studies can not only expand the awareness of foam metal mechanical behavior, but also on the domestic industrial production of the performance of the foam aluminum material design, optimization and production preparation plays a guiding role.

scholarly journals The Influence of Different Length Aluminum Foam Filling on Mechanical Behavior of a Square Thin-Walled Column

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3630
Author(s):  
Michał Rogala ◽  
Mirosław Ferdynus ◽  
Katarzyna Gawdzińska ◽  
Paweł Kochmański
Keyword(s):  
Energy Absorption ◽  
Aluminum Foam ◽  
Cast Aluminum ◽  
Absorption Coefficients ◽  
Crushing Force ◽  
Foam Filling ◽  
Static Tensile ◽  
Thin Walled ◽  
Aluminum Profiles ◽  
Aluminum Material

The demand for lightweight, strong structural profiles is currently high in the transport industry, mechanical engineering, and construction. Therefore, it is important to evaluate their properties, especially mechanical properties. The main objective of this paper is to determine energy absorption coefficients and evaluate the crush resistance of thin-walled aluminum profiles using numerical simulation and empirical verification. This paper presents the compression results of testing of thin-walled aluminum profiles filled with a porous material (cast aluminum foam). The numerical analysis was conducted using the software Abaqus/CAE. Aluminum material data were obtained from a static tensile test performed on a Shimadzu machine. The experiment was performed on an Instron CEAST 9450HES dynamic hammer. Profiles with three shapes of crush initiators filled with aluminum foam measuring 40 mm–200 mm in 20 mm increments were numerically tested. A sample with a concave initiator filled with foams of 40 mm, 60 mm, 80 mm, and 120 mm in length was used to verify the numerical analyses. Energy absorption coefficients were determined from the analyses. The results of both analyses were tabulated to show the percentage differences. The study showed an increase in the Crush Load Efficiency (CLE) index by up to 33% for samples with the same crush initiator. In addition, it was noted that the use of porous fill does not increase the value of initiating Peak Crushing Force (PCF), which indicates the generation of much smaller overloads dangerous for vehicle passengers.

A Study into the Behavior of an Aluminum Foam under Compression

2013 ◽  
Vol 535-536 ◽  
pp. 64-67
Author(s):  
C. Mahesh ◽  
Anindya Deb ◽  
S.V. Kailas ◽  
C. Uma Shankar ◽  
T.R.G. Kutty ◽  
...  
Keyword(s):  
Aluminum Foam ◽  
Absorption Capacity ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Stress Strain ◽  
Compression Loading ◽  
Strain Behavior ◽  
Axial Crush ◽  
Set Up ◽  
Energy Absorbing

The characterization of a closed-cell aluminum foam with the trade name Alporas is carried out here under compression loading for a nominal cross-head speed of 1 mm/min. Foam samples in the form of cubes are tested in a UTM and the average stress-strain behavior is obtained which clearly displays a plateau strength of approximately 2 MPa. It is noted that the specific energy absorption capacity of the foam can be high despite its low strength which makes it attractive as a material for certain energy-absorbing countermeasures. The mechanical behavior of the present Alporas foam is simulated using cellular (i.e. so-called microstructure-based) and solid element-based finite element models. The efficacy of the cellular approach is shown, perhaps for the first time in published literature, in terms of prediction of both stress-strain response and inclined fold formation during axial crush under compression loading. Keeping in mind future applications under impact loads, limited results are presented when foam samples are subjected to low velocity impact in a drop-weight test set-up.

Review the Research Trends and Application in Car Body of Aluminum Foam

2015 ◽  
Vol 729 ◽  
pp. 73-78
Author(s):  
Cong Cheng Ma ◽  
Feng Chong Lan
Keyword(s):  
Automobile Industry ◽  
Aluminum Foam ◽  
Research Work ◽  
Structure Design ◽  
Material Structure ◽  
Thin Wall ◽  
Aluminum Foams ◽  
Design Factor ◽  
Stable Production ◽  
Production Preparation

Aluminum foam has been widely used in aviation and spaceflight, ships, cars, transportation, construction, petrochemicals, telecommunications, etc. For decades, scholars have done a lot of research work. Mature and stable production preparation process of aluminum foams has been possessed. At present, the practical application design and production has becomes a hot issue. Based on analysis a flood of literature, aluminum foams owned mechanical properties and application, property evolution after filling thin wall tube; all were inductive research and reviewed in the paper. Moreover, material structure design factor, experimental comparisons, application in the automobile industry, development situation, as well forecasted its market prospect, all this were summarized. Suggestions on aluminum foam applications in the automotive industry had been proposed. Consequently, promote the process of the research efforts on the application of aluminum foam in the car, provide to designer and research worker with reference.

Analysis and Experimentation Research of the Static Compressive Mechanical Test of Foam Aluminum Composite

2014 ◽  
Vol 1030-1032 ◽  
pp. 16-19
Author(s):  
Zhen Rong Lin ◽  
Yuan Lai ◽  
Yan Feng Tian
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Energy Absorption ◽  
Silicone Rubber ◽  
Aluminum Foam ◽  
Mechanical Test ◽  
Foam Aluminum ◽  
Aluminum Composite ◽  
Composite Foam ◽  
Modified Epoxy

In order to achieve function-structure integration and improve mechanical properties and energy absorption capability of the foam aluminum composite,foam aluminum filled with silicone rubber-modified epoxy resin was prepared.Static compression test shows that the platform yield stage of foam aluminum filled with modified epoxy resin is uplifted,the mechanical properties and energy absorption capability of foam aluminum are improved.The results are helpful to expand the application of aluminum foam.

Investigation on Plastic Forming of Foam Aluminum Material

2011 ◽  
Vol 474-476 ◽  
pp. 287-291
Author(s):  
Hai Bin Chen ◽  
Zhen Zhong Sun ◽  
Wei Feng He ◽  
Rong Yong Li
Keyword(s):  
Plastic Deformation ◽  
High Temperature ◽  
Room Temperature ◽  
Solidus Temperature ◽  
Foam Material ◽  
Foam Aluminum ◽  
Cold Forming ◽  
Plastic Forming ◽  
Stress And Deformation ◽  
Aluminum Material

The article focuses on analyzing plastic deformation and microstructure evolution mechanism of foam aluminum material when foam aluminum is compressed and stretched uniaxially at room temperature, and studying plastic deformation of foam aluminum at room temperature and high temperature. Results show that cold forming of foam material is restricted by many factors. So, it only carries out some simple integral forming and local plastic forming; High temperature reduces the yield stress and deformation limits of foam material, that the forming can be easily carried out. If parts of TiH2 foam aluminum are processed, the temperature must be below solidus temperature in order to avoiding destructing pore structure.

Joining of Aluminum Foam/Aluminum Metal by Spark Plasma Sintering Process

2007 ◽  
Vol 26-28 ◽  
pp. 1349-1352 ◽  
Author(s):  
Young H. Ko ◽  
Se Hun Chang ◽  
Ik Hyun Oh ◽  
Jae Ik Cho ◽  
Chang Seog Kang
Keyword(s):  
Spark Plasma Sintering ◽  
Aluminum Foam ◽  
Holding Time ◽  
Dominant Factor ◽  
Foam Aluminum ◽  
Lightweight Structures ◽  
Aluminum Metal ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Holding Temperature

Aluminum foam is lightweight structures, energy absorption and thermal management. In this reason, there is a lot of attention on the aluminum foam as a structural material. The present papers showed various conventional joining techniques can be applied for foam-sheet structures, i.e., riveting, screwing, welding, gluing and soldering. This research presents new joining technique of Aluminum foam/Aluminum metal using spark plasma sintering (SPS) process. The Aluminum foam/Aluminum metals were fabricated by changing of various SPS holding temperature and holding time conditions. With increasing holding temperature and holding time, the tensile stress increased. The specimen sintered at 550°C for 20 min shows σts = 1.47 MPa. Also, it was found that the SPS holding time is dominant factor than the holding temperature for sound joining of two joint materials.

High Velocity Uniaxial Strain Response of ERG Aerospace Aluminum Foam

2010 ◽  
Author(s):  
Warren R. Maines ◽  
Lalit Chhabildas ◽  
William D. Reinhart ◽  
Tom F. Thornhill
Keyword(s):  
Relative Density ◽  
Shock Compression ◽  
High Velocity ◽  
Aluminum Foam ◽  
Uniaxial Strain ◽  
Strain Response ◽  
Foam Material ◽  
Standard Material ◽  
Compaction Behavior ◽  
Witness Plate

We report the results of uniaxial strain experiments of ERG Aerospace aluminum foam, at 50% relative density up to 10 GPa. The reverse ballistic plate reverberation technique was used to obtain shock compression states of the material. In these tests, 6061 T-6 aluminum, oxygen free homogenous copper (OFHC), and tantalum were used as standard material targets and were shocked by an aluminum foam projectile traversing up to 2.0 km/s. The response of the target plates were monitored by three different velocity interferometers positioned at three different locations on the witness plate. This provided us with the compaction behavior of the foam material in three discrete locations per sample, due to the presence of porosity in the foam material.

scholarly journals X-ray Radiography Inspection of Pores of Thin Aluminum Foam during Press Forming Immediately after Foaming

Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1226
Author(s):  
Yoshihiko Hangai ◽  
Daisuke Kawato ◽  
Masataka Ohashi ◽  
Mizuki Ando ◽  
Takuya Ogura ◽  
...  
Keyword(s):  
Material Flow ◽  
Aluminum Foam ◽  
Forming Process ◽  
Foam Aluminum ◽  
X Ray ◽  
Pore Structures ◽  
Press Forming ◽  
Thin Aluminum ◽  
Transmission Direction

Forming aluminum foam to the desired shape while retaining its pore structures is essential for manufacturing aluminum foam products. Recently, a press forming process for aluminum foam that is performed after precursor foaming but before solidification has been proposed. In this study, to track individual pores throughout press forming immediately after foaming, X-ray radiography inspection was applied. A thin precursor was used, and foaming was constrained to the X-ray transmission direction. It was shown that, although some pores coalesced with other pores, the pores did not collapse during press forming. In addition, the porosity of aluminum foam evaluated from X-ray transmission images was constant during press forming. Some pores retained their shape during press forming but their position was changed by the material flow generated by press forming. These results show that by press forming before the solidification of aluminum foam, aluminum foam can be shaped without the collapse of pores.

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