Numerical analysis of oblique hypervelocity impact damage to space structural materials by ice particles in cryogenic environment
نویسندگان
چکیده
A phase-aware constitutive model is developed and integrated with the meshfree simulations to study failure mechanisms of space structural materials under oblique hypervelocity impact ice. The proposed covers material’s dynamic behavior in a wide range temperature, pressure, strain rates. numerical analysis combines Hot Optimal Transportation Meshfree method EigenErosion algorithm explicitly account for large deformation, brittle ductile failure, phase transition, debris cloud formation target ice projectile. Specifically, surface erosion crater different speeds angles are characterized by damage’s shapes, depth, length. predicted depths Al6061 targets validated Cour-Palais empirical model. It evident that damage material particles results from competition between fracture, plasticity, transition materials. angle velocity determine deformation potential thread ejected debris.
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ژورنال
عنوان ژورنال: Acta Astronautica
سال: 2022
ISSN: ['1879-2030', '0094-5765']
DOI: https://doi.org/10.1016/j.actaastro.2022.02.029