Abstract
The aeronautical and automotive industries have, as an essential objective, the energy efficiency optimization of aircraft and cars, while maintaining stringent functional requirements. One working line focuses on the use of lightweight structural materials to replace conventional materials. For this reason, it is considered enlightening to carry out an analysis of the literature published over the last 20 years through Open Access literature. For this purpose, a systematic methodology is applied to minimize the possible risks of bias in literature selection and analysis. Web of Science is used as a search engine. The final selection comprises the 30 articles with the highest average numbers of citations per year published from 2015 to 2020 and the 7 articles published from the period of 2000–2014. Overall, the selection is composed of 37 Open Access articles with 2482 total citations and an average of 67.1 citations per article/year published, and includes Q1 (62%) and Q2 (8%) articles and proceeding papers (30%). The study seeks to inform about the current trends in materials and processes in lightweight structural materials for aeronautical and automotive applications with a sustainable perspective. All the information collected is summarized in tables to facilitate searches and interpretation by interested researchers.
Highlights
Sustainability and energy efficiency are currently key objectives in the development of technological and industrial sectors
This study develops a non-linear dynamic model that takes into account the vibration during the milling of a thin-walled titanium alloy part, and despite being a simplification that only considers sharp edges, it allows the design, according to the model, of an anti-vibration clearance angle that manages to eliminate vibration and improve surface quality
The aeronautical and automotive industries have been pushing the development of new structural lightweight materials to reduce the mass of aircraft and vehicles in order to increase their energy efficiency, and at the same time to meet the stringent functional requirements demanded by these industries
Summary
Sustainability and energy efficiency are currently key objectives in the development of technological and industrial sectors. These objectives are demanded by society and regulated by the different governments and administrations through increasingly restrictive legislation, aiming to reverse, as far as possible, the environmental damage caused so far and to establish the basis for truly sustainable and efficient development. Carbon dioxide concentrations have increased by 40% since pre-industrial levels because of fossil fuels and land-use changes. The oceans have absorbed about 30% of the carbon dioxide emitted, leading to their acidification. Greenhouse gas emissions need to be significantly and sustainably reduced [1]
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