Life Cycle Engineering Based on Visual Analytics

Kaluza, Alexander; Gellrich, Sebastian; Cerdas, Felipe; Thiede, Sebastian; Herrmann, Christoph

doi:10.1016/j.procir.2017.11.128

Cited by 19 publications

(7 citation statements)

References 18 publications

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“…Energy and material data can either rely on empirical data, prospectively oriented engineering models, e.g. simulation studies, or a combination of both [14].…”

Section: Impacts Of Manufacturing Frp-based Lightweight Body Partsmentioning

confidence: 99%

Integration of Energy Oriented Manufacturing Simulation into the Life Cycle Evaluation of Lightweight Body Parts

Dér

Kaluza

Reimer

et al. 2022

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Recent years introduced process and material innovations in the design and manufacturing of lightweight body parts for larger scale manufacturing. However, lightweight materials and new manufacturing technologies often carry a higher environmental burden in earlier life cycle stages. The prospective life cycle evaluation of lightweight body parts remains to this day a challenging task. Yet, a functioning evaluation approach in early design stages is the prerequisite for integrating assessment results in engineering processes and thus allowing for a life cycle oriented decision making. The current paper aims to contribute to the goal of a prospective life cycle evaluation of fiber-reinforced lightweight body parts by improving models that enable to predict energy and material flows in the manufacturing stage. To this end, a modeling and simulation approach has been developed that integrates bottom-up process models into a process chain model. The approach is exemplarily applied on a case study of a door concept. In particular, the energy intensity of compression molding of glass fiber and carbon fiber sheet molding compounds has been analyzed and compared over the life cycle with a steel reference part.

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“…Energy and material data can either rely on empirical data, prospectively oriented engineering models, e.g. simulation studies, or a combination of both [14].…”

Section: Impacts Of Manufacturing Frp-based Lightweight Body Partsmentioning

confidence: 99%

Integration of Energy Oriented Manufacturing Simulation into the Life Cycle Evaluation of Lightweight Body Parts

Dér

Kaluza

Reimer

et al. 2022

Int. J. of Precis. Eng. and Manuf.-Green Tech.

Self Cite

View full text Add to dashboard Cite

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“…The methodology is organized in two pillars (A Life Cycle Assessment, B Conceptual Design) and four levels (i Data, ii Engineering models, iii Interpretation and visualization, iv Knowledge building). The pillars are associated to the involved disciplines, i.e., environmental impact evaluation based on Life Cycle Assessment (LCA) and conceptual design, whereas the levels are organized around a Visual Analytics-based LCE workflow as introduced by Kaluza et al [12]. This also includes a perspective on applied input data, e.g., background data like environmental impacts in material and energy supply, foreground data like the production and use scenario of the vehicle as well as part-related data regarding the part geometry, mechanical loading and design criteria.…”

Section: Design Of Eco-efficient Body Parts Considering Life Cycle Environmental Informationmentioning

confidence: 99%

Design of Eco-Efficient Body Parts for Electric Vehicles Considering Life Cycle Environmental Information

et al. 2020

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The reduction of greenhouse gas (GHG) emissions over the entire life cycle of vehicles has become part of the strategic objectives in automotive industry. In this regard, the design of future body parts should be carried out based on information of life cycle GHG emissions. The substitution of steel towards lightweight materials is a major trend, with the industry undergoing a fundamental shift towards the introduction of electric vehicles (EV). The present research aims to support the conceptual design of body parts with a combined perspective on mechanical performance and life cycle GHG emissions. Particular attention is paid to the fact that the GHG impact of EV in the use phase depends on vehicle-specific factors that may not be specified at the conceptual design stage of components, such as the market-specific electricity mix used for vehicle charging. A methodology is proposed that combines a simplified numerical design of concept alternatives and an analytic approach estimating life cycle GHG emissions. It is applied to a case study in body part design based on a set of principal geometries and load cases, a range of materials (aluminum, glass and carbon fiber reinforced plastics (GFRP, CFRP) as substitution to a steel reference) and different use stage scenarios of EV. A new engineering chart was developed, which helps design engineers to compare life cycle GHG emissions of lightweight material concepts to the reference. For body shells, the replacement of the steel reference with aluminum or GFRP shows reduced lifecycle GHG emissions for most use phase scenarios. This holds as well for structural parts being designed on torsional stiffness. For structural parts designed on tension/compression or bending stiffness CFRP designs show lowest lifecycle GHG emissions. In all cases, a high share of renewable electricity mix and a short lifetime pose the steel reference in favor. It is argued that a further elaboration of the approach could substantially increase transparency between design choices and life cycle GHG emissions.

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“…Based on this definition, Fig. 18 proposes an LCE workflow illustrating interfaces between data acquisition, modelling, visualisation and interpretation, and knowledge generation [246]. For the case of lightweight structures, an interdisciplinary collaborative approach capturing the manifold interdependencies between design, manufacturing and LCE has been proposed [11].…”

Section: Future Research Directionsmentioning

confidence: 99%

Life cycle engineering of lightweight structures

et al. 2018

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Lightweight structures are increasingly necessary to meet current engineering requirements. Weight reduction in diverse applications such as automobiles or machine tools is achieved either by using less material or by substituting material with a lighter one, which provides more functionality per unit of weight. To be an effective enabler for sustainability, lightweight structures should result in lower environmental impacts per functional unit when compared to conventional structures on a life cycle basis. However, applying new materials and manufacturing processes often leads to an increase in environmental impacts from the raw materials and production stage of the life cycle. Furthermore, end-of-life disassembly and recycling may become more difficult. In addition, the expected efficiency gains from the use of lightweight structures depend on how the overall market and technical systems respond to them. Consequently, the environmental evaluation of lightweight structures in engineering entails various methodological challenges. Organised around a life cycle engineering framework with a focus on eco-effectiveness, this paper provides a comprehensive review of lightweight structure applications and the challenges and opportunities they present in a life cycle engineering context.

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Life Cycle Engineering Based on Visual Analytics

Cited by 19 publications

References 18 publications

Integration of Energy Oriented Manufacturing Simulation into the Life Cycle Evaluation of Lightweight Body Parts

Integration of Energy Oriented Manufacturing Simulation into the Life Cycle Evaluation of Lightweight Body Parts

Design of Eco-Efficient Body Parts for Electric Vehicles Considering Life Cycle Environmental Information

Life cycle engineering of lightweight structures

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