Computational and Experimental Study of Energy Absorption Metter by Composite Structures

2006 ◽  
pp. 223-223
Author(s):  
T. Niezgoda ◽  
W. Barnat
Keyword(s):  
Experimental Study ◽  
Energy Absorption ◽  
Composite Structures

Experimental Study on Geometries Energy Absorption of Fiber Metal Laminated Mild Steel under Axial Compression

2013 ◽  
Vol 813 ◽  
pp. 165-170
Author(s):  
Muhammad Izani Sahak ◽  
Ahmad Kamely Mohamad ◽  
Abdullah Atiq Ariffin
Keyword(s):  
Experimental Study ◽  
Mild Steel ◽  
Energy Absorption ◽  
Axial Compression ◽  
Composite Structures ◽  
Hybrid Composites ◽  
Compressive Loading ◽  
Deformation And Failure ◽  
Fiber Metal ◽  
The Impact

Crashworthiness is the ability of a structure to protect its occupants during an impact. Depending on the nature of the impact and the vehicle involved, different criteria are used to determine the crashworthiness of the structure. The combination of metal and composite layers is known to displays plastics deformation and failure mode composite layered. The capable of structures to absorb large amount of energy are great interest in an effort to reduce the impact of collision. In this experimental study, an investigation will be carried out on geometries behavior of fiber metal laminated mild steel under axial compression. For structures subjected to compression, energy absorption is highly desirable and will depend on its physical shape. The efficiency is measured in term of the absorption performance that is higher in hybrid composites than in metallic and composite structures. Much of the working assessing the energy absorbing capability of composite materials and structures under compressive loading has been to a greater extent restricted to axis metric tubes. Therefore, it will contribute knowledge on how to design hybrid composite material tubes to develop a stable or controlled compression response under sustained axial loading.

Relation of energy absorption of composite structures to material strength

1994 ◽  
Vol 4 (2) ◽  
pp. 195-218 ◽  
Author(s):  
Ch. Wolff ◽  
P. Bastid ◽  
A.R. Bunsell
Keyword(s):  
Energy Absorption ◽  
Composite Structures ◽  
Material Strength

scholarly journals Experimental study of the impact response of geocells as components of rockfall protection embankments

2009 ◽  
Vol 9 (2) ◽  
pp. 459-467 ◽  
Author(s):  
S. Lambert ◽  
P. Gotteland ◽  
F. Nicot
Keyword(s):  
Experimental Study ◽  
Numerical Model ◽  
Boundary Conditions ◽  
Composite Structures ◽  
Impact Force ◽  
Impact Response ◽  
Rigid Base ◽  
Transmitted Force ◽  
The Impact ◽  
Rockfall Protection

Abstract. Rockfall protection embankments are ground levees designed to stop falling boulders. This paper investigates the behaviour of geocells to be used as components of these structures. Geocells, or cellular confinement systems, are composite structures associating a manufactured envelope with a granular geomaterial. Single cubic geocells were subjected to the impact resulting from dropping a spherical boulder. The geocells were filled with fine or coarse materials and different boundary conditions were applied on the lateral faces. The response is analysed in terms of the impact force and the force transmitted by the geocell to its rigid base. The influence on the geocell response of both the fill material and the cell boundary conditions is analysed. The aim was to identify the conditions resulting in greatest reduction of the transmitted force and also to provide data for the validation of a specific numerical model.

EXPERIMENTAL STUDY OF ENERGY ABSORPTION PROPERTIES OF GRANULAR MATERIALS UNDER LOW FREQUENCY VIBRATIONS

2004 ◽  
Vol 18 (17n19) ◽  
pp. 2708-2712
Author(s):  
MAO-BIN HU ◽  
XIANG-ZHAO KONG ◽  
QING-SONG WU ◽  
ZHEN-GANG ZHU
Keyword(s):  
Experimental Study ◽  
Granular Materials ◽  
Energy Absorption ◽  
Vibration Frequency ◽  
Absorption Rate ◽  
Low Frequency ◽  
Vibration Energy ◽  
Torsion Pendulum ◽  
Absorption Properties ◽  
Low Frequency Vibration

The low frequency vibration energy absorption properties of granular materials have been investigated on an Invert Torsion Pendulum (ITP). The energy absorption rate of granular material changes nonlinearly with amplitude under low frequency vibration. The frequency of ITP system increases a little with granular materials in the holding cup. The vibration frequency of ITP system does not change with time.

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