Additively manufactured aluminium nested composite hybrid rocket fuel grainswith breathable blades

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dc.contributor.authorQu, Dandan
dc.contributor.authorLin, Xin
dc.contributor.authorZhang, Kun
dc.contributor.authorLi, Zhiyong
dc.contributor.authorWang, Zezhong
dc.contributor.authorLiu, Guoliang
dc.contributor.authorMeng, Yang
dc.contributor.authorLuo, Gengxing
dc.contributor.authorWang, Ruoyan
dc.contributor.authorYu, Xilong
dc.date.accessioned2023-09-18T10:32:04Z
dc.date.available2023-09-18T10:32:04Z
dc.date.issued2023-08-18
dc.description.abstractHybrid rocket engines suffer from the restricted mechanical properties and low regression rates of current polymeric fuel grains. We propose a three-dimensional printed aluminium (Al) nested composite fuel grain with millimetre-scale lattice pores (referred to as Al-L). In this study, breathable Al blades with micrometer-scale interconnected pores (Al-B) and blades combining millimetre-scale and micrometer-scale pores (Al-B&L) are designed. The formation mechanisms, characteristics, and effects of the breathable blades are analysed in simulations, micro-computed tomography, and cyclic compression tests. The mechanical properties of the composite fuel grains are investigated numerically and in compression tests. Al-B has the highest Young’s modulus at more than 15 times that of a paraffin-based fuel grain and Al-B&L has the highest yield stress at 4 times that of the paraffin-based fuel grain. Referring to combustion properties, the regression rates of the Al-B and Al-B&L grains are respectively 63.3% and 58.2% greater than the regression rate of the paraffin-based fuel grain.en_UK
dc.identifier.citationQu D, Lin X, Zhang K, et al., (2023) Additively manufactured aluminium nested composite hybrid rocket fuel grains with breathable blades, Virtual and Physical Prototyping, Volume 18, Issue 1, 2023, Article Number e2235680en_UK
dc.identifier.eissn1745-2767
dc.identifier.issn1745-2759
dc.identifier.urihttps://doi.org/10.1080/17452759.2023.2235680
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20228
dc.language.isoenen_UK
dc.publisherTaylor & Francisen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjecthybrid rocket engineen_UK
dc.subjectadditive manufacturing/three-dimensional printingen_UK
dc.subjectbreathable bladeen_UK
dc.subjectcomposite fuel grainen_UK
dc.subjectmechanical and combustion propertiesen_UK
dc.subjectporous structureen_UK
dc.titleAdditively manufactured aluminium nested composite hybrid rocket fuel grainswith breathable bladesen_UK
dc.typeArticleen_UK

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