Lightweight Floor Structure with Reinforcements of CFRP and GFRP

Eckstein, Lutz; Ickert, Leif; Goede, Martin; Dölle, Norbert

doi:10.1365/s35595-011-0025-4

Cited by 8 publications

(3 citation statements)

References 1 publication

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“…Furthermore, lightweight structures can be enhanced by the realisation of functional integration through combining different materials on a component level. Multimaterial structures require new process technologies in order to enable an introduction into large-scale manufacturing routes, as demonstrated by Eckstein et al [43].…”

Section: Automotivementioning

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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Section: Automotivementioning

confidence: 99%

Life cycle engineering of lightweight structures

et al. 2018

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“…The integration of new processes in current process chains requires the development towards competitive cycle times, the qualification for sensitive process steps, e.g. the cathodic dip painting, as well as the consideration of additional invest volumes as exemplary shown in [11]. The variety and complexity of LWDs and manufacturing suggests to jointly elaborate the potentials and obstacles of a large-scale manufacturing from a design and manufacturing perspective.…”

Section: Design Of Automotive Lightweight Structuresmentioning

confidence: 99%

Conceptual Development of Hybrid Structures Towards Eco-Efficient Vehicle Lightweighting

Kaluza

Fröhlich

Kleemann

et al. 2018

Designing Sustainable Technologies, Products and Policies

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Lightweight design is a major strategy in automotive development. The dominant motivation is a reduction of use-phase energy demands while retaining or improving technical performance. The application of new materials is the prevalent lightweighting strategy. Modern vehicle concepts extend material substitution up to the combination of different materials on a component level, so called hybrid designs. While engineering processes, methods and tools in design and production engineering are well established for conventional designs, hybrid designs pose new challenges. Lightweight materials as well as new manufacturing and recycling processes may cause increased environmental impacts. In order to achieve eco-efficient lightweight structures, energy savings from the vehicles' use phase need to compensate additional burdens in other lifecycle stages. The current work presents findings gained in a public-private research collaboration. Its starting point is the understanding of the role of life cycle engineering towards its impact on overall sustainability goals. Based on derived key requirements, an integrated life cycle engineering approach is developed. Activities and interfaces between life cycle engineering, component design and manufacturing are elaborated. A special focus is set on the conceptual design stage, as emerging materials and manufacturing technologies lead to a broader concept variety. This stage presents also a major lever for shaping the life cycle environmental impact of components.

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“…They are applied in various sectors such as aviation, marine, and automotive. In the aircraft itself, the use of composite has an aim to reduce overall weight which gives benefit to the airlines and environment as well, since it reduces CO2 emission while improving the efficiency of aircraft fuel [1,2]. Thus, the components and structure of aircraft were developed by using composite materials since the 2000's in two big aircraft manufactures, Airbus and Boeing [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Aramid Composite as an Alternative in Use of Steel on the Manufacture of CN-235 Aircraft Wings

Hidayah

Farikha

Maspaitella³

2021

MSF

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The use of steel in aerospace manufacture continues to decrease, owing in part to the sustainability and mechanical properties of fibers which have higher strength in minimum weight than steel. This study was defined to evaluate the mechanical properties of high-performance fibers, especially aramid, in terms of composite to be part of aircraft' wings called CN-235. The reinforcements were pre-impregnated by the materials manufacturers, under heat and pressure, with a pre-catalysed resin. Then the layering of aramid prepregs was carried with a dry lay-up process and cured in the autoclave at a temperature of 125°C and pressure of 3 bar for 90 minutes. The aramid composite was cured in various grain directions and examined in mechanical tests such as tensile, compression, and interlaminar shear strength tests. The result showed an insignificant difference between 0 and 90 degrees of grain direction in aramid composite in any properties. The strength of aramid composite with 90 degrees of grain direction has a higher value in the compression test (less than 5%) while having lower value in tensile and interlaminar shear tests.

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Lightweight Floor Structure with Reinforcements of CFRP and GFRP

Cited by 8 publications

References 1 publication

Life cycle engineering of lightweight structures

Life cycle engineering of lightweight structures

Conceptual Development of Hybrid Structures Towards Eco-Efficient Vehicle Lightweighting

Mechanical Properties of Aramid Composite as an Alternative in Use of Steel on the Manufacture of CN-235 Aircraft Wings

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