MODELING AND ANALYTICAL STUDY OF PROGRESSIVE COLLAPSE OF ALUMINUM FOAM

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ZAMANI EHSAN; LIAGHAT GHOLAM HOSSEIN; POL MOHAMMAD HOSSEIN

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Journal: Modares Mechanical Engineering Year:2014 | Volume:14 | Issue:9 Page(s): 99-106

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Information Journal Paper

Title

MODELING AND ANALYTICAL STUDY OF PROGRESSIVE COLLAPSE OF ALUMINUM FOAM

Author(s)

ZAMANI EHSAN | LIAGHAT GHOLAM HOSSEIN | POL MOHAMMAD HOSSEIN | Issue Writer Certificate

Keywords

ALUMINUM FOAMQ2

D PROGRESSIVE COLLAPSE MODELQ2

SHOCK WAVEQ2

ELASTIC-PLASTIC WAVEQ2

PRECURSER ELASTIC WAVEQ2

Abstract

Axial compression behavior of foam materials can be explained by two ideal deformation scenarios: discrete crush band process and progressive collapse. In this paper, a perfectly new model for strength assessment and quantitative/qualitative description of one-dimensional progressive collapse of ALUMINUM FOAMs under impulsive loadings is presented and its capability to split this way of crushing into two distinct regimes of SHOCK WAVE and elastic- plastic wave propagation is highlighted. Then, using conservation relations and the new introduced model, the analytical solution of dynamic deformation of ALUMINUM FOAMs in the two mentioned regimes is developed. Regime 2 considers the case when the crushing front velocity is lower than the linear sound velocity of the foam; but remains higher than the effective sound velocity for a perturbation in which the amplitude lies in the so-called “plateau region” of the static stress-strain diagram. The physical difference between this regime and the first one entails not only the creation a shock front associated with the collapsing foam, but also an acoustic precursor in the case of second regime. Finite element simulation is also performed to validate the analytical procedure. The numerical prediction is found to be in very good agreement with the analytical results.

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APA: Copy

ZAMANI, EHSAN, LIAGHAT, GHOLAM HOSSEIN, & POL, MOHAMMAD HOSSEIN. (2014). MODELING AND ANALYTICAL STUDY OF PROGRESSIVE COLLAPSE OF ALUMINUM FOAM. MODARES MECHANICAL ENGINEERING, 14(9), 99-106. SID. https://sid.ir/paper/177791/en

Vancouver: Copy

ZAMANI EHSAN, LIAGHAT GHOLAM HOSSEIN, POL MOHAMMAD HOSSEIN. MODELING AND ANALYTICAL STUDY OF PROGRESSIVE COLLAPSE OF ALUMINUM FOAM. MODARES MECHANICAL ENGINEERING[Internet]. 2014;14(9):99-106. Available from: https://sid.ir/paper/177791/en

IEEE: Copy

EHSAN ZAMANI, GHOLAM HOSSEIN LIAGHAT, and MOHAMMAD HOSSEIN POL, “MODELING AND ANALYTICAL STUDY OF PROGRESSIVE COLLAPSE OF ALUMINUM FOAM,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 9, pp. 99–106, 2014, [Online]. Available: https://sid.ir/paper/177791/en

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