Energy absorption of aluminum foam filled braided stainless steel tubes under quasi-static tensile loading conditions

2006 ◽  
Vol 48 (11) ◽  
pp. 1223-1233 ◽  
Author(s):  
Qingwu Cheng ◽  
William Altenhof ◽  
Shun Yi Jin ◽  
Chris Powell ◽  
Anne-Marie Harte
Keyword(s):  
Stainless Steel ◽  
Energy Absorption ◽  
Aluminum Foam ◽  
Tensile Loading ◽  
Loading Conditions ◽  
Steel Tubes ◽  
Static Tensile Loading ◽  
Static Tensile ◽  
Foam Filled

Deformation and Energy Absorption of Aluminum Foam Filled Square Tubes

2012 ◽  
Vol 585 ◽  
pp. 34-38 ◽  
Author(s):  
Manmohan Dass Goel ◽  
Laxminarayan Krishnappa
Keyword(s):  
Energy Absorption ◽  
Aluminum Foam ◽  
Absorption Capacity ◽  
Stress Wave Propagation ◽  
Foam Core ◽  
Absorption Studies ◽  
Foam Filled ◽  
Experimental Trials ◽  
Deformation Modes ◽  
Tube Structure

Modeling and numerical simulation of aluminum foam filled square tubes under axial impact loading is presented. The foam-filled thin-walled square tubes are modeled as shell wherein, foam core is modeled by incorporating visco-elastic plastic foam model in Altair® RADIOSS. Deformation and energy absorption studies with single, bi-tubular, and multi-tube structure with and without aluminum foam core are carried out for assessing its effectiveness in crashworthiness under the identical conditions. It is observed that the multi-tube structure with foam core modify the deformation modes considerably and results in substantial increase in energy absorption capacity in comparison with the single and multi-tube without foam core. Moreover, the multi-tube foam filled structure shows complicated deformation modes due to the significant effect of stress wave propagation. This study will help automotive industry to design superior crashworthy components with multi-tube foam filled structures and will reduce the experimental trials by conducting the numerical simulations.

Damage Observation of Glass Fiber/Epoxy Composites Using Thermography and Supported by Acoustic Emission

2014 ◽  
Vol 627 ◽  
pp. 187-190 ◽  
Author(s):  
Jefri Bale ◽  
Emmanuel Valot ◽  
Martine Monin ◽  
Peggy Laloue ◽  
Olivier Polit ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Glass Fiber ◽  
Epoxy Composite ◽  
Thermal Response ◽  
Tensile Loading ◽  
Destructive Testing ◽  
Ir Camera ◽  
Damage Propagation ◽  
Static Tensile Loading ◽  
Static Tensile

This work presents an experimental study to monitor the damage propagation of composite material by non destructive testing (NDT) method. In order to achieve this, an open hole condition of glass fiber/epoxy composite has been used as the specimen test under static tensile loading and observed using two different real-time monitoring techniques of NDT namely infra-red (IR) camera and supported by Acoustic Emission. The results show that the thermal response and acoustic emission signals give a good detection on damage appearance and damage propagation of glass fiber/epoxy composite under static tensile loading conditions.

Study of the Torsional Behavior of Aluminum Foam-Filled Galvanized Steel Tubes after High Temperature

2018 ◽  
Vol 773 ◽  
pp. 238-243
Author(s):  
Zhan Guang Wang ◽  
Yang Wang
Keyword(s):  
High Temperature ◽  
Aluminum Foam ◽  
Load Capacity ◽  
Steel Tube ◽  
Galvanized Steel ◽  
Steel Tubes ◽  
Torsional Load ◽  
Torsional Behavior ◽  
Before And After ◽  
Foam Filled

Torsional test of aluminum foam-filled galvanized steel tube before and after high temperature is performed. The influence of temperature, porosity of aluminum foam and steel ratio on torsional behavior of aluminum foam galvanized steel tubes were analyzed. Experimental results showed that torsional curves of aluminum foam-filled galvanized steel tube before and after high temperature is similar, and can be divided into four stages: the elastic torsional stage, yield platform stage, descent stage and hardening stage; Its torsional load capacity decreases with increasing porosity of aluminum foam and increases at a higher steel content and slenderness ratio; after high temperature, torsional load capacity of galvanized steel tube decreased significantly. It was found that the strength reduction factor ratio under the elevated test temperature is higher than that recommended by British ECCS, Australian AS4100 and Chinese CECS 200-2006.

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