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Design and numerical evaluation of recycled-carbon-fiber-reinforced polymer/metal hybrid engine cradle concepts

•Polymer-metal hybrid (PMH) engine cradle concepts are developed.•The PMH designs obtained are stiff and lighter than its steel counterpart.•A great improvement in vibration isolation is achieved.•The hybrid components possess great strength under heavy static loads. The design and evaluation of pol...

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Published in:International journal of mechanical sciences 2019-11, Vol.163, p.105115, Article 105115
Main Authors: Fonseca, João Henrique, Han, Giyeol, Quagliato, Luca, Kim, Yonghee, Choi, Joeun, Keum, Taeyeon, Kim, Sungeun, Han, Do Suck, Kim, Naksoo, Lee, Hyungyil
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cited_by cdi_FETCH-LOGICAL-c312t-3b3b4bde5cab994a4eeb2735a4120c3e3762e6ed2edab2364d286ae32dd290aa3
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container_issue
container_start_page 105115
container_title International journal of mechanical sciences
container_volume 163
creator Fonseca, João Henrique
Han, Giyeol
Quagliato, Luca
Kim, Yonghee
Choi, Joeun
Keum, Taeyeon
Kim, Sungeun
Han, Do Suck
Kim, Naksoo
Lee, Hyungyil
description •Polymer-metal hybrid (PMH) engine cradle concepts are developed.•The PMH designs obtained are stiff and lighter than its steel counterpart.•A great improvement in vibration isolation is achieved.•The hybrid components possess great strength under heavy static loads. The design and evaluation of polymer-metal hybrid (PMH) engine cradles are realized via the design of concept models and finite element (FE) analyses. The structures consider a low-cost recycled carbon fiber (rCF) and PMH technologies. The initial conceptual design consists of creating C-type/hollow-type inserts and modifying the plastic components by considering the dimensions and thickness of insert and inclusion of plastic ribs as the design parameters. The PMH engine cradles are then evaluated by performance criteria, including weight reduction, stiffness, natural frequency and strength. The integration of rCF with injection-molding over metal inserts promoted weight reduction. The hollow-type and C-type PMH engine cradles achieved the weight reduction of 19 and 16% compared to the reference steel engine cradle, respectively, while they fulfilled the evaluation criteria. The results contribute to the advance of lightweight engine cradles with improved structural performance, fabricated with low-cost carbon fiber and fast manufacturing processes. [Display omitted]
doi_str_mv 10.1016/j.ijmecsci.2019.105115
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subjects Engine cradle
Multi-material design
Polymer-metal hybrid structures
Recycled carbon fiber
Weight reduction
title Design and numerical evaluation of recycled-carbon-fiber-reinforced polymer/metal hybrid engine cradle concepts
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