Experimental and numerical analysis of the aluminum alloy AW5005 behavior subjected to tension and perforation under dynamic loading

Bendarma, Amine; Jankowiak, Tomasz; Łodygowski, Tomasz; Rusinek, Alexis; Klósak, Maciej

doi:10.15632/jtam-pl.55.4.1219

Cited by 24 publications

(17 citation statements)

References 25 publications

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“…Similarly, El-Magd and Abouridouane demonstrated that the ductility of AA7075 increased with the increasing strain rate [19]. Bendara et al analysed the mechanical behaviour of the AW 5005 (AA5005) aluminium alloy under impact loading [20]. They conducted tensile tests for a wide range of strain rates and a perforation test.…”

Section: Introductionmentioning

confidence: 99%

The Evaluation of the Fracture Surface in the AW-6060 T6 Aluminium Alloy under a Wide Range of Loads

Chybiński

Polus

Ratajczak

et al. 2019

Metals

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The present study focused on the behaviour of the AW-6060 aluminium alloy in peak temper condition T6 under a wide range of loads: tensile loading, projectile and explosion. The alloy is used as a structural component of civil engineering structures exposed to static or dynamic loads. Therefore, it was crucial to determine the material’s behaviour at low and intermediate rates of deformation. Despite the fact that the evaluation of the strain rate sensitivity of the AW-6060 aluminium alloy has already been discussed in literature, the authors of this paper wished to further investigate this topic. They conducted tensile tests and confirmed the thesis that the AW-6060 T6 aluminium alloy has low strain rate sensitivity at room temperature. In addition, the fracture surfaces subjected to different loading (tensile loading, projectile and explosion) were investigated and compared using a scanning electron microscope, because the authors of this paper were trying to develop a new methodology for predicting how samples had been loaded before failure occurred based on scanning electron microscopy (SEM) micrographs. Projectile and explosion tests were performed mainly for the SEM observation of the fracture surfaces. These tests were unconventional and they represent the originality of this research. It was found that the type of loading had an impact on the fracture surface.

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Section: Introductionmentioning

confidence: 99%

The Evaluation of the Fracture Surface in the AW-6060 T6 Aluminium Alloy under a Wide Range of Loads

Chybiński

Polus

Ratajczak

et al. 2019

Metals

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“…The process is assumed to be adiabatic due to the reduced time for heat transmission out of the generation zone. Taylor-Quinney coefficient (β), the percentage of plastic work converted into heat, is assumed to be equal to 0.9 [24][25][26]. The increase of temperature is given in Equation 5depending also on the density of the material (ρ) and the specific heat at constant pressure (C p ).…”

Section: Mechanical Behavior Of Inconel 718mentioning

confidence: 99%

Experimental and Numerical Analysis of Conical Projectile Impact on Inconel 718 Plates

Rodríguez-Millán

Díaz-Álvarez

Bernier

et al. 2019

Metals

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This paper analyses the impact behavior of Inconel 718 through experimental and numerical approach. Different conical projectiles were tested in order to obtain the ballistic curves and failure mechanisms. A three-dimensional (3D) numerical model corresponding to the experimental tests was developed using the Johnson–Cook constitutive model. The experimental data (residual velocities, global, and local perforation mechanisms) were successfully predicted with the numerical simulations. The influence of the projectile’s nose angle was found to be important when designing ballistic protections. The projectile with the narrowest angle, 40°, developed a ballistic limit approximately 10 m/s lower than the projectile with a 72° nose. The use of double-nose projectile for the same nose angle, 72°, led to a ballistic limit 12 m/s lower than that obtained for the single nose.

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“…A more sophisticated approach to define failure, i.e. damage initiation deformation ε , has been recently developed in [19]. Two functions with four constants H, I, J and K are determined using an optimization method.…”

Section: Proposed Constitutive Relationmentioning

confidence: 99%

Experimental study of brass properties through perforation tests using a thermal chamber for elevated temperatures

Klósak

Rusinek

Bendarma

et al. 2018

Lat. Am. j. solids struct.

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Experimental analysis on standard brass alloy has been carried out using a high pressure gas gun. Perforation tests have been performed for a variety of impact velocities from 40 to 120 m/s in order to study the material behaviour and to define failure modes. The main aim of the study has been to provide results using an innovative thermal chamber that allows to heat specimens before impact. The range of available temperatures is from the room temperature up to 260 ˚C. The experimental study has allowed to discuss the ballistic properties of the structure. The ballistic resistance of sheet plates is strongly dependent on the material behaviour under dynamic loading and changes with temperature. The ballistic properties are also intensely related to interaction between the projectile and thin brass target. The results in terms of the ballistic curve V R (residual velocity) versus V 0 (initial velocity) have shown the temperature effect on the residual kinetic energy and thus on the energy absorbed by the plate, revealing a thermal softening of the brass. The ballistic limit corresponding to the maximum impact velocity without complete perforation has decreased by 5-7% for the highest temperature considered. A changing failure pattern is observed. The number of petals varies as a function of impact velocity and temperature. It can be concluded based on experimental observations that thermal softening is a key point on the process of perforation. Preliminary temperature records have been provided using a thermal imaging camera.

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Experimental and numerical analysis of the aluminum alloy AW5005 behavior subjected to tension and perforation under dynamic loading

Cited by 24 publications

References 25 publications

The Evaluation of the Fracture Surface in the AW-6060 T6 Aluminium Alloy under a Wide Range of Loads

The Evaluation of the Fracture Surface in the AW-6060 T6 Aluminium Alloy under a Wide Range of Loads

Experimental and Numerical Analysis of Conical Projectile Impact on Inconel 718 Plates

Experimental study of brass properties through perforation tests using a thermal chamber for elevated temperatures

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