% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@PHDTHESIS{Piacquadio:1006820,
author = {Piacquadio, Stefano},
othercontributors = {Schröder, Kai-Uwe and Filippeschi, Sauro},
title = {{C}haracterisation and optimisation of lattice structures
embedded with phase change materials},
volume = {2024,5},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Düren},
publisher = {Shaker Verlag},
reportid = {RWTH-2025-02744},
isbn = {9783844097955},
series = {Aachener Berichte aus dem Leichtbau},
pages = {1 Online-Ressource : Illustrationen},
year = {2025},
note = {Druckausgabe: 2025. - Auch veröffentlicht auf dem
Publikationsserver der RWTH Aachen University; Dissertation,
RWTH Aachen University, 2024},
abstract = {In engineering fields where mass is a design-driving
parameter, holistic mass reduction via multi-functionality
is seen as a key enabler for further improvement of systems'
performance. This research addresses the upcoming need for
multi-functional structures capable of concurrently managing
thermal control, energy storage, and load-bearing
$requirements.\\$ An investigation on the thermal and
mechanical properties of lattice structures incorporating
Phase Change Materials (PCMs) is described throughout this
thesis. The work commences with an analytical description of
the geometry of lattice structures. Then, it delves into the
exploration of the effective thermophysical properties of
the homogenised composite material, followed by meticulous
validation through experimental methodologies. The impact of
natural convection on the expansion of the melting front
within the medium is considered as well. To elucidate how
the presence of the PCM influences the structural integrity
of the lattice, numerical and experimental analyses are
performed for the PCM-infused lattice structures, focusing
on the stability of the struts when the PCM is frozen.
Furthermore, the thesis introduces a multi-variate
optimisation framework designed to offer novel pathways for
topology optimisation of lattice structures. This framework
enables the exploration of optimal configurations by
considering multiple variables simultaneously, providing a
comprehensive approach to tailor the performance of such
composites. The findings of this research contribute to a
deeper understanding of the thermal and mechanical behaviour
of cellular solids embedded with PCMs, providing valuable
insights for applications in thermal energy storage, thermal
management systems, and other related fields.In summary,
this research contributes significantly to the advancement
of multi-functional structures, offering a holistic
perspective to address the complex demands of aerospace and
other applications where mass is a constraint.},
cin = {415610},
ddc = {620},
cid = {$I:(DE-82)415610_20160301$},
typ = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
doi = {10.18154/RWTH-2025-02744},
url = {https://publications.rwth-aachen.de/record/1006820},
}
guest ::