TY - JOUR
T1 - Numerical analysis of oblique hypervelocity impact damage to space structural materials by ice particles in cryogenic environment
AU - Jiang, Hao
AU - Wang, Hao
AU - Scott, Valerie
AU - Li, Bo
N1 - Publisher Copyright:
© 2022 IAA
PY - 2022/6
Y1 - 2022/6
N2 - A phase-aware constitutive model is developed and integrated with the meshfree simulations to study the failure mechanisms of space structural materials under the oblique hypervelocity impact of ice. The proposed constitutive model covers material's dynamic behavior in a wide range of temperature, pressure, and strain rates. The numerical analysis combines the Hot Optimal Transportation Meshfree method with the EigenErosion algorithm to explicitly account for large deformation, brittle and ductile failure, phase transition, and debris cloud formation in the target materials and ice projectile. Specifically, the surface erosion and crater formation in the target under different impact speeds and angles are characterized by the damage's shapes, depth, and length. The predicted crater depths in the Al6061 targets are validated by the Cour-Palais empirical model. It is evident that the damage to the space structural material by ice particles results from the competition between fracture, plasticity, and phase transition in the materials. The impact angle and velocity determine the crater deformation and the potential thread of the ejected debris.
AB - A phase-aware constitutive model is developed and integrated with the meshfree simulations to study the failure mechanisms of space structural materials under the oblique hypervelocity impact of ice. The proposed constitutive model covers material's dynamic behavior in a wide range of temperature, pressure, and strain rates. The numerical analysis combines the Hot Optimal Transportation Meshfree method with the EigenErosion algorithm to explicitly account for large deformation, brittle and ductile failure, phase transition, and debris cloud formation in the target materials and ice projectile. Specifically, the surface erosion and crater formation in the target under different impact speeds and angles are characterized by the damage's shapes, depth, and length. The predicted crater depths in the Al6061 targets are validated by the Cour-Palais empirical model. It is evident that the damage to the space structural material by ice particles results from the competition between fracture, plasticity, and phase transition in the materials. The impact angle and velocity determine the crater deformation and the potential thread of the ejected debris.
KW - Crater formation
KW - Eigenerosion
KW - Ice debris
KW - Meshfree method
KW - Multiphase constitutive model
KW - Oblique hypervelocity impact
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U2 - 10.1016/j.actaastro.2022.02.029
DO - 10.1016/j.actaastro.2022.02.029
M3 - Article
AN - SCOPUS:85127223840
SN - 0094-5765
VL - 195
SP - 392
EP - 404
JO - Acta Astronautica
JF - Acta Astronautica
ER -