Study on bagging effect and rupture failure of membrane structures

Samy, Akram; Yuan, Xiying; Zhang, Ying; Zhang, Weijia

doi:10.1016/j.engstruct.2021.111880

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…While the projectile impacted the target plate, the tensile and compressive strain waves were developed and reacted [ 12 ] from the y-axial and spherical x-axial, respectively, as shown at the left of Figure 9 . The projectile continued to progress in the x-axial to counter the through-thickness wave in the opposite direction [ 25 ], resulting in a transverse shear force. This force continued to form a wave to counter the projectile progression, resulting in the growth in-plane delamination wave [ 42 ].…”

Section: Simulation Results Analysesmentioning

confidence: 99%

“…Some research had been conducted on the energies distributed and dissipated [ 19 , 20 , 21 ] during the fracture mechanisms [ 22 , 23 , 24 ]. Some numerical simulation research had been conducted on the membrane failure mechanisms [ 14 , 15 , 16 , 25 , 26 , 27 ] to study the distribution and dissipation energies involved at interfaces [ 21 , 28 ]. However, the majority of these studies focused on behaviors and waves [ 12 , 22 , 27 , 29 , 30 ] and not on internal stresses and stress-related defeats [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation Study on Relationship between the Fracture Mechanisms and Residual Membrane Stresses of Metallic Material

Miskon

Zaidi

Ahmad

et al. 2022

JFB

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The distribution and dissipation energies in fracture mechanisms were a critical challenge to derive, especially for this ultra-thin sample. The membrane failure, which is the end of the fracture mechanisms, is a result of the cone wave reflections from the backend membrane boundaries. These reflections delay the failure processes due to the shock impacts. To compare these results with the experimental work, a numerical simulation was conducted for these processes. The cylinder-shaped rigid projectile was impacted using a frictionless Lagrange solver. The target was a cartridge brass circle plate clamped at its perimeter, and its zone was refined to a ten-times higher meshing density for better analysis. The erosion and cut-off controls involved a zero-gap interaction condition and an instantaneous geometric erosion strain of 200%. Due to the maximum projectile velocity of 382 m/s having the slowest perforation, the target thickness was found to be 5.5 mm. The fracture mechanism phenomena, such as tensile, compressive, through-thickness, and growth in-plane delamination, propagating delamination, and local punch shear waves were observed. After deducting tensile and flexural strengths from the last experiment, a total residual membrane stress of 650 MPa was found. This result indicated a relationship between the fracture mechanisms and residual membrane stresses of metallic material.

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Section: Simulation Results Analysesmentioning

confidence: 99%