10,571 research outputs found

    The recycling of OMC's carbon reinforcement by solvolysing thermoset matrix. A way of sustainability for composites.

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    Originally developed for high-tech applications, carbon ïŹbre/thermoset matrix composites have been increasingly used in leisure and sports industries, for several years. But the carbon reinforcement is the most expensive constituent, and also the most environmentally impacting in the elaboration of a composite part. To this day, no end-of-life solution or recycling process efficiently exists. This paper aims at demonstrating that recovering the carbon reinforcement is possible, technically and economically speaking. Moreover, it is particularly the basis for a life cycle analysis that assesses benefits and environmental challenges of this recycling loop based on the reinforcement recovery by a solvolysis of the organic matrix. Lastly, the lack of data to consider the better end-of-life option (reuse, recycling, energy recovery and material valorisation) will be underlined

    Strategic perspectives on modularity

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    In this paper we argue that the debate on modularity has come to a point where a consensus is slowly emerging. However, we also contend that this consensus is clearly technology driven. In particular, no room is left for firm strategies. Typically, technology is considered as an exogenous variable to which firms have no choices but to adapt. Taking a slightly different perspective, our main objective is to offer a conceptual framework enabling to shed light on the role of corporate strategies in the process of modularization. From interviews with academic design engineers, we show that firms often consider product architecture as a critical variable to fit their strategic requirements. Based on design sciences, we build an original approach to product modularity. This approach, which leaves an important space for firms' strategic choices, proves also to seize a large part of the industrial reality of modularity. Our framework, which is a first step towards the consideration of strategies within the framework of modularity, gives an account for the diversity of industrial logics related to product modularization.product modularity ; corporate strategy ; technological determinism

    Concept And Exemplary Application Of Industrialized Re-Assembly To An Automotive Use Case In The Context Of Circular Economy

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    To reach set climate goals recent paradigms of production need to be reconsidered. Within the automotive industry, approaches like electric mobility focus on the use phase. However, the production of an electric car is resource and energy intensive, which diminishes the ecological advantage of electrification in the use phase. Established approaches aiming for the production phase often involve saving energy or resources, which is in a single-digit range when it comes to the reduction of emissions. In contrast to that, applying the concept of Circular Economy can reduce the ecological impact of products over their lifetime significantly. This paper introduces Re-Assembly as a plannable concept to extend the lifetime of products while reducing emissions and increasing the margins for the OEM. By combining the concept of Re-Assembly with other R-strategies, this paper aims to demonstrate the ecological and economic potential of circular business models, especially in the automotive sector. This is done by introducing the results of a use case and deriving specific enablers for the concept. The resulting enablers can be understood as fields of action for establishing Re-Assembly in practice

    ReSICLED: a new recovery-conscious design method for complex products based on a multicriteria assessment of the recoverability

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    Significant improvements in end-of-life complex product recovery can be accomplished when recovery aspects are better integrated at the design stage of products. This paper introduces a new method that should allow design teams to produce better recovery-conscious designs, i.e. to integrate the complexity and the variability of recovery routes and to make recoverability more tangible to designers. The main methodological aspects of the new method are presented based on an analysis of the strengths and weaknesses of existing methods. In particular, the original multiprocess modelling of recovery scenarios and the original quantitative, multicriteria and multiscenario assessment of the recoverability of a product are detailed. On the basis of the assessment results, a design team is able to suggest design improvements. The implementation of the new method is simulated in real industrial practice. It is shown how the use of the method can bring significant gains in the product’s recoverability. Assets and drawbacks of the method are discussed.RĂ©gion RhĂŽne-Alpe

    Sustainable product development in a circular economy: Implications for products, actors, decision-making support and lifecycle information management

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    The concept of circular economy (CE) is of great interest for manufacturing companies since it provides a framework which allows them to align organisational objectives with the Sustainable Development Goals (SDGs). Corporate CE entails the adoption of several value-retention options (R-strategies) throughout companies’ operations, which aim at creating, preserving and recovering the value of assets and products. The sustainable product development (SPD) process, in which around 80% of the total environmental impact of a product is determined, is employed to translate R-strategies into new product requirements. This study is aimed at investigating the implications of R-strategy adoption for decision-making in SPD. The research follows an empirical approach, combining a literature review and in-depth semi-structured interviews with product developers and sustainability experts working in companies operating in the technical material cycles of the CE. Thus, implications for product dimensions, inter- and intraorganisational actors, decision-making support types and lifecycle information flows so that SPD processes further accommodate CE principles into products are investigated. This study reveals new directions to adjust the contextual factors of SPD to further align existing processes with widely expanding CE organisational cultures
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