Hot Drape Forming of Thermosetting Composites

热固性复合材料的热悬垂成型

基本信息

  • 批准号:
    261632-2013
  • 负责人:
  • 金额:
    $ 1.68万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2017
  • 资助国家:
    加拿大
  • 起止时间:
    2017-01-01 至 2018-12-31
  • 项目状态:
    已结题

项目摘要

To automate production of composite parts using prepreg (towpreg), automated tape placement (ATL) and automated fibre placement (AFP) technologies have been developed. Many aircraft structural parts such as ribs, frames, spars or brackets are too small or too complex in shape to be efficiently and cost-effectively manufactured using automated technologies such as AFP. To take advantage of the automation (AFP) to manufacture these parts, two-step process is proposed and used. A flat stack of uncured plies with correct shape and stacking sequences is first created by automated processes such as ATL or AFP. Then flat stack is transferred to the forming set-up where it is turned into the final shape using heat and pressure (vacuum) before being cured. This is called hot drape forming. The heat applied during the process reduces the resin viscosity, while the pressure (vacuum) provides the mechanical action to form the laminate. A better understanding of forming process of laminated composite is required to capture the physics of the process and to develop models. Then models can be used to simulate and to optimize the process. Focus of this study will be on the resin role on transferring the shear load and supporting the fibres during the forming to prevent the fibres from buckling and wrinkling. Processing window has to be defined to achieve a good quality part at the end of operation. Through this two steps process, the full advantage of automation for manufacturing of small and complex parts can be explored. This will show the Canadian aerospace industry even broader advantage of automation using AFP for manufacturing different parts at lower cost.
为了使用预浸料(丝束预浸料)自动生产复合材料部件,已经开发了自动铺带(ATL)和自动纤维铺放(AFP)技术。许多飞机结构部件,例如肋、框架、翼梁或支架,在形状上太小或太复杂,以至于不能使用自动化技术(例如AFP)高效且成本有效地制造。为了利用自动化(AFP)来制造这些部件,提出并使用了两步工艺。具有正确形状和堆叠顺序的未固化层片的平坦堆叠首先通过自动化工艺(例如ATL或AFP)产生。然后将扁平堆叠转移到成形装置,在那里使用热和压力(真空)将其变成最终形状,然后固化。这被称为热悬垂成形。在该过程中施加的热量降低了树脂粘度,而压力(真空)提供了形成层压材料的机械作用。为了更好地理解复合材料层合板的成形过程,需要掌握成形过程的物理过程并建立模型。然后,模型可以用于模拟和优化过程。本研究的重点将是树脂的作用,转移剪切载荷和支持纤维在成型过程中,以防止纤维屈曲和扭曲。必须定义加工窗口,以在操作结束时获得高质量的零件。通过这两个步骤,可以充分利用自动化在小型复杂零件制造中的优势。这将向加拿大航空航天工业展示使用AFP自动化以更低成本制造不同零件的更广泛优势。

项目成果

期刊论文数量(0)
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会议论文数量(0)
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Hojjati, Mehdi其他文献

Wrinkle formation during steering in automated fiber placement: Modeling and experimental verification
Bending behavior of multilayered textile composite prepregs: Experiment and finite element modeling
  • DOI:
    10.1016/j.matdes.2017.03.077
  • 发表时间:
    2017-06-15
  • 期刊:
  • 影响因子:
    8.4
  • 作者:
    Alshahrani, Hassan;Hojjati, Mehdi
  • 通讯作者:
    Hojjati, Mehdi
Design, manufacturing, and testing of a variable stiffness composite cylinder
  • DOI:
    10.1016/j.compstruct.2017.09.090
  • 发表时间:
    2018-01-15
  • 期刊:
  • 影响因子:
    6.3
  • 作者:
    Rouhi, Mohammad;Ghayoor, Hossein;Hojjati, Mehdi
  • 通讯作者:
    Hojjati, Mehdi
A new test method for the characterization of the bending behavior of textile prepregs
Thermal cycling of composite laminates made of out-of-autoclave materials

Hojjati, Mehdi的其他文献

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{{ truncateString('Hojjati, Mehdi', 18)}}的其他基金

Forming of Composites
复合材料的成型
  • 批准号:
    RGPIN-2018-05086
  • 财政年份:
    2022
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Forming of Composites
复合材料的成型
  • 批准号:
    RGPIN-2018-05086
  • 财政年份:
    2021
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Forming of Composites
复合材料的成型
  • 批准号:
    RGPIN-2018-05086
  • 财政年份:
    2020
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Forming of Composites
复合材料的成型
  • 批准号:
    RGPIN-2018-05086
  • 财政年份:
    2019
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Forming of Composites
复合材料的成型
  • 批准号:
    RGPIN-2018-05086
  • 财政年份:
    2018
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
3D Finite Element Modeling of Turning Processes of Metals and Composites
金属和复合材料车削过程的 3D 有限元建模
  • 批准号:
    531482-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Engage Grants Program
Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
    261632-2013
  • 财政年份:
    2016
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
    261632-2013
  • 财政年份:
    2015
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
    261632-2013
  • 财政年份:
    2014
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Characterization of Recycled-Foamed Thermoplastic Composite Materials
再生发泡热塑性复合材料的表征
  • 批准号:
    468791-2014
  • 财政年份:
    2014
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Engage Grants Program

相似海外基金

Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
    261632-2013
  • 财政年份:
    2016
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
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  • 批准号:
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  • 财政年份:
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  • 资助金额:
    $ 1.68万
  • 项目类别:
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Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
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  • 财政年份:
    2015
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
    261632-2013
  • 财政年份:
    2014
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Discovery Grants Program - Individual
Hot Drape Forming of Thermosetting Composites
热固性复合材料的热悬垂成型
  • 批准号:
    261632-2013
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  • 资助金额:
    $ 1.68万
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  • 批准号:
    2644640
  • 财政年份:
    1996
  • 资助金额:
    $ 1.68万
  • 项目类别:
ONE STEP ANTIMICROBIAL SURGICAL PREPARATION AND DRAPE
一步式抗菌手术准备和手术单
  • 批准号:
    2006871
  • 财政年份:
    1996
  • 资助金额:
    $ 1.68万
  • 项目类别:
ONE STEP ANTIMICROBIAL SURGICAL PREPARATION AND DRAPE
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  • 批准号:
    6055637
  • 财政年份:
    1996
  • 资助金额:
    $ 1.68万
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考虑粗纱层面的复杂机制,开发和验证机织织物的耦合细观-宏观悬垂模型
  • 批准号:
    498784926
  • 财政年份:
  • 资助金额:
    $ 1.68万
  • 项目类别:
    Research Grants
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