Materials selection for an automotive structure by integrating structural optimization with environmental impact assessment

Ermolaeva, Natalia S.; Castro, María; Kandachar, Prabhu

doi:10.1016/j.matdes.2004.02.021

Cited by 104 publications

(45 citation statements)

References 4 publications

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“…Material selection however, is rarely a straightforward process. In practice, the selection of the best alternative depends on more parameters in addition to environmental impact and weight; leading to a multicriteria assessment [16,18]. Designers must define decision criteria and handle trade-offs between the different parameters.…”

Section: Discussionmentioning

confidence: 99%

“…Hence, comprehensive frameworks are needed which ensure that both functional and environmental vehicle performance requirements are considered and balanced. Although rarely applied in practice, several such integrated models for evaluating and selecting materials can be found in literature [3,5,[16][17][18][19][20]. Simoes et.…”

Section: Introductionmentioning

confidence: 99%

“…However, design parameters and requirements are not presented as part of a comprehensive material selection model, limiting those studies to an environmental and cost assessment of finished products. Only a few complete frameworks for material selection in a design context based on structural optimization and life cycle environmental assessment techniques have been published [16,18,20]. Some of these are prescriptive, for instance concerning the use of preselected environmental indicators or decision making functions.…”

Section: Introductionmentioning

confidence: 99%

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A material selection approach to evaluate material substitution for minimizing the life cycle environmental impact of vehicles

et al. 2015

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Weight reduction is commonly adopted in vehicle design as a means for energy and emissions savings. However, selection of lightweight materials is often focused on performance characteristics, which may lead to sub optimizations of life cycle environmental impact. Therefore systematic material selection processes are needed that integrate weight optimization and environmental life cycle assessment. This paper presents such an approach and its application to design of an automotive component. Materials from the metal, hybrid and polymer families were assessed, along with a novel self-reinforced composite material that is a potential lightweight alternative to nonrecyclable composites. It was shown that materials offering the highest weight saving potential offer limited life cycle environmental benefit due to energy demanding manufacturing. Selection of the preferable alternative is not a straightforward process since results may be sensitive to critical but uncertain aspects of the life cycle. Such aspects need to be evaluated to determine the actual benefits of lightweight design and to base material selection on more informed choices.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A material selection approach to evaluate material substitution for minimizing the life cycle environmental impact of vehicles

et al. 2015

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“…The weighted performance index values for material selection of rocket motors are done by Rajan and Narasimhan [22]. Ermolaeva et al [23] applied structural optimization method for the optimal choice of foams as a core material for sandwiches with aluminium alloy faces. Material selection carried out by using logical procedure by Rao and Devim [24].…”

Section: Example 1: Automobile Frontmentioning

confidence: 99%

Application of AHP/EVAMIX Method for Decision Making in the Industrial Environment

Darji¹,

Rao²

2013

AJOR

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Selection of best alternative among multiple alternatives is a tough task for decision makers in many industrial situations. This paper explores the applicability and capability of an outranking method known as Evaluation of Mixed Data (EVAMIX) method combined with Analytical Hierarchy Process (AHP) for selection of right alternative. The novelty of the proposed methodology is its capability of dealing with both ordinal and cardinal information. The integrated approach is a significant tool of the decision making process in industrial environments. Five examples are illustrated to show the effectiveness of method.

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“…For example, using inexpensive, low stiffness fibres and compromising on component mass is a possibility for achieving the same target stiffness as using more expensive fibre tows with higher specific properties. These design problems are typically solved using either multi-objective optimisation approaches [5][6][7], or multi-criterion material selection approaches [8][9][10], or a combination of structural optimisation and material selection [11][12][13][14]. This is the second paper in a two part series presenting the development of a design strategy for discontinuous fibre composites, which aims to integrate stiffness optimisation with multi-criterion material selection.…”

mentioning

confidence: 99%

Structural optimisation of random discontinuous fibre composites: Part 2 – Case study

Qian¹,

Harper²,

Turner³

et al. 2015

Composites Part A: Applied Science and Manufacturing

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This is the second paper in a two part series presenting the development of a stiffness optimisation algorithm to intelligently optimise the fibre architecture of discontinuous fibre composites. A MultiCriteria Decision Making (MCDM) strategy is used to select parameters associated with the fibre architecture, to produce components that satisfy stiffness, cost and mass criteria.The model has been successfully demonstrated using an automotive spare wheel well geometry, which shows that a highly optimised discontinuous fibre composite solution can compete against a continuous fabric counterpart in terms of specific stiffness, whilst presenting an opportunity for significant cost reduction. This could potentially lead to the application of composite materials into new areas where cost has previously been prohibitive.

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Materials selection for an automotive structure by integrating structural optimization with environmental impact assessment

Cited by 104 publications

References 4 publications

A material selection approach to evaluate material substitution for minimizing the life cycle environmental impact of vehicles

A material selection approach to evaluate material substitution for minimizing the life cycle environmental impact of vehicles

Application of AHP/EVAMIX Method for Decision Making in the Industrial Environment

Structural optimisation of random discontinuous fibre composites: Part 2 – Case study

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