Modeling and Numerical Simulation of Ballistic Impact on Sandwich Composite Materials

To predict the behavior of a dual plate composed of 5052-aluminum and 1002-cold rolled steel under ballistic impact, numerical and experimental approaches are attempted. For the accurate numerical simulation of the impact phenomena, the appropriate selection of the key parameter values based on numerical or experimental tests are critical. This study is focused on not only the optimization technique using the numerical simulation but also numerical and experimental procedures to obtain the required parameter values in the simulation. The Johnson-Cook model is used to simulate the mechanical behaviors, and the simplified experimental and the numerical approaches are performed to obtain the material properties of the model. The element erosion scheme for the robust simulation of the ballistic impact problem is applied by adjusting the element erosion criteria of each material based on numerical and experimental results. The adequate mesh size and the aspect ratio are chosen based on parametric studies. Plastic energy is suggested as a response representing the strength of the plate for the optimization under dynamic loading. Optimized thickness of the dual plate is obtained to resist the ballistic impact without penetration as well as to minimize the total weight.

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Tensile Property Evaluation of Carbon Fiber Reinforced Aluminium Sandwich Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.984-985.345 ◽

2014 ◽

Vol 984-985 ◽

pp. 345-349 ◽

Cited By ~ 1

Author(s):

U. Tamilarasan ◽

L. Karunamoorthy ◽

K. Palanikumar

Keyword(s):

Electron Microscope ◽

Composite Materials ◽

Tensile Property ◽

Composite Laminates ◽

Sandwich Composite ◽

Property Evaluation ◽

New Applications ◽

Fractured Surface ◽

Scanning Electron ◽

Better Than

Composite materials are finding new applications in many situations and are better than the conventional materials because of their excellent properties. In the present investigation, aluminium sandwich composite laminates are fabricated and their tensile property is evaluated. The structure of the composites and their fractured surface are studied by using Scanning Electron Microscope. The analysis of the experimental results indicated that the incorporation of aluminium stack as sandwich improves the properties and can be used as a structural material for construction.

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Some Aspects Concerning the Mechanical Characterization versus Manufacturing Technology of Sandwich Composite Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.834.161 ◽

2016 ◽

Vol 834 ◽

pp. 161-166 ◽

Cited By ~ 1

Author(s):

Nicolae Constantin ◽

Marin Sandu ◽

Adriana Sandu ◽

Paulina Spânu ◽

Dorin Roşu ◽

...

Keyword(s):

Composite Materials ◽

Service Life ◽

Mechanical Characterization ◽

Manufacturing Technology ◽

Special Care ◽

Sandwich Composite ◽

Life Conditions ◽

Point Test ◽

Sandwich Materials

The paper presents aspects observed during classic three-point test bending of various sandwich materials. These aspects outline the need to spare special attention to such test, in connection with the particular material and service life conditions it will endorse. Such special care is needed in conditions of scarcity of dedicated standards and some evasive formulations in the existing ones.

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