Marta S. S. Martins

Marta S. S. Martins


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
22 August 2019 in Journal of Composites Science
Verified
Journal Article
Open access
PDF file
Elias KoumoulosElias Koumoulos
Elias Koumoulos
Aikaterini-Flora TrompetaAikaterini-Flora Trompeta
Aikaterini-Flora Trompeta
RSRaquel Santos
Raquel Santos
MMMarta S. S. Martins
Marta S. S. Martins
CSCláudio Monterio dos Santos
Cláudio Monterio dos Santos
Costas CharitidisCostas Charitidis
Costas Charitidis
Structural materials, typically based on metal, have been gradually substituted by high-performance composites based on carbon fibers, embedded in a polymer matrix, due to their potential to provide lighter, stronger, and more durable solutions. In the last decades, the composites industry has witnessed a sustained growth, especially due to diffusion of these materials in key markets, such as the construction, wind energy, aeronautics, and automobile sectors. Carbon fibers are, by far, the most widely used fiber in high-performance applications. This important technology has huge potential for the future and it is expected to have a significant impact in the manufacturing industry within Europe and, therefore, coordination and strategic roadmapping actions are required. To lead a further drive to develop the potential of composites into new sectors, it is important to establish strategic roadmapping actions, including the development of business and cost models, supply chains implementation, and development, suitability for high volume markets and addressing technology management. Europe already has a vibrant and competitive composites industry that is supported by several research centers, but for its positioning in a forefront position in this technology, further challenges are still required to be addressed.

11 May 2016 in Fire and Materials
Verified
Journal Article
Closed access
PDF file
MMMarta S. S. Martins
Marta S. S. Martins
BSBernhard Schartel
Bernhard Schartel
Fernão MagalhãesFernão Magalhães
Fernão Magalhães
CPC. M. C. Pereira
C. M. C. Pereira

30 November 2018 in Fibers
Verified
Journal Article
Open access
PDF file
MMMarta S. S. Martins
Marta S. S. Martins
RGRui Gomes
Rui Gomes
LPLuis Pina
Luis Pina
CPCeleste Pereira
Celeste Pereira
OROlaf Reichmann
Olaf Reichmann
NRNuno Rocha
Nuno Rocha
One of the main advantages of carbon fiber-reinforced polymer (CFRP) electronic housings, when compared with traditionally used aluminum ones, is the potential for mass savings. In recent years, the power consumption of electronics has been growing, resulting in the need for higher thermal dissipation of electronic housings, requiring the use of highly thermally conductive materials. In this work, the manufacturing of a highly conductive CFRP electronic housing is reported. With a view to reducing total energy costs on manufacturing, an out-of-the autoclave manufacturing process was followed. Due to the inherent low thermal conductivity of typical raw materials for composite materials, strategies were evaluated to increase its value by changing the components used. The use of pitch-based carbon fibers was found to be a very promising solution. In addition, structural, thermal and manufacturing simulations were produced in the design phase. Improved performance was demonstrated from materials manufacturing to final breadboard testing. The results indicate potential gains of around 23% in mass reduction when compared to conventional aluminum electronic boxes. Moreover, the proposed design and the manufactured breadboard showed good compliance with mechanical and electrical requirements for spacecraft structures. The thermal balance results showed a performance slightly below to what would be expected from the detailed design.

1 January 2014
Verified
Book Chapter
Closed access
CPC.M.C. Pereira
C.M.C. Pereira
MMMarta S. S. Martins
Marta S. S. Martins

1 August 2010 in Composite Structures
Verified
Journal Article
Closed access
CPCristiana Alexandra Nunes Pereira
Cristiana Alexandra Nunes Pereira
PNPaulo Nóvoa
Paulo Nóvoa
MMMarta S. S. Martins
Marta S. S. Martins
SFStefan Forero
Stefan Forero
FHFelicitas Hepp
Felicitas Hepp
LPLaurent Pambaguian
Laurent Pambaguian

1 April 2009 in Solid State Phenomena
Verified
Journal Article
Closed access
PDF file
MMMarta S. S. Martins
Marta S. S. Martins
CPCristiana Alexandra Nunes Pereira
Cristiana Alexandra Nunes Pereira
In this work the effect of nano-magnesium hydroxide (nano-Mg(OH)2) on the flammability of epoxy composites is presented and compared with the traditional flame retardant used in just small amounts for epoxy resins, ammonium polyphosphate (APP). The fire reaction properties of epoxy composites were obtained by cone calorimeter tests. It was observed that the flammability of the unfilled resin is significantly changed with nano-Mg(OH)2 addition and reductions of 33, 22 and 23% in the epoxy composite heat release rate peak (PHRR) by incorporating 10%, 5 % and 1% of nano-Mg(OH)2, respectively, were achieved. Cone calorimeter analyses confirm the better behavior of APP composites compared with nano-Mg(OH)2 composites. SEM micrographs show some agglomerations on the distribution of nano-Mg(OH)2 in the epoxy matrix.