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

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 reflect...

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Bibliographic Details
Published in:Journal of functional biomaterials 2022-02, Vol.13 (1), p.20
Main Authors: Lim, Yan Yik, Miskon, Azizi, Zaidi, Ahmad Mujahid Ahmad, Megat Ahmad, Megat Mohamad Hamdan, Abu Bakar, Muhamad
Format: Article
Language:English
Subjects:
Arthritis
Biomedical materials
Brass plating
Cartilage
cartridge brass
Delamination
Erosion control
finite element
Fracture mechanics
fracture mechanisms
Friction
Geometry
Mathematical models
Membranes
numerical simulation
Osteoarthritis
perforation
Projectiles
residual membrane stress
Residual stress
Simulation
Target thickness
Velocity
Wave propagation
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Summary: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.
ISSN:2079-4983
2079-4983
DOI:10.3390/jfb13010020