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A monolithic “unibody” construction of structural assemblies through vacuum-assisted processing of agro-waste fibrous composites.

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Title: A monolithic “unibody” construction of structural assemblies through vacuum-assisted processing of agro-waste fibrous composites.
Authors: Brooks, Adam L.1, Zhou, Hongyu1 hongyu.zhou@uah.edu, Shen, Zhenglai1
Source: Construction & Building Materials. 10/30/2017, Vol. 153, p886-896. 11p.
Subjects: Vacuum concrete process, Agricultural wastes, Fibrous composites, Synthetic fibers, Stiffness (Mechanics)
Abstract: This research explored the feasibility of using vacuum-assisted infusion process (VIP) and agricultural waste - based materials to in-situ build unitary (or “monolithic”) structural components and assemblies. Mechanical properties of the natural/synthetic hybrid fiber composite materials were studied. The experimental results show that in combination with a small amount of glass fiber, the nonwoven coconut coir fiber mats can be used as structural sheathing material to provide satisfactory strength and stiffness. In addition, five “unibody” light-frame composite shear panels sheathed with the coconut coir/fiberglass material and two plywood panels were fabricated; and three composite “I”-shape beams were prototyped using the vacuum infusion process. The structural behaviors of the composite shear panels and beams were tested and compared to those of conventional plywood constructions. The results indicate that structural members constructed through VIP have satisfactory stiffness and strength and they offer better structural integrity and energy dissipation over conventional constructions. The design and construction technique outlined in this paper provides a means to in-situ construct complex-shaped structural assemblies with minimal or no joint. The experimental data showed good agreement with results calculated through classical laminate theory (CLT). [ABSTRACT FROM AUTHOR]
Copyright of Construction & Building Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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  Data: A monolithic “unibody” construction of structural assemblies through vacuum-assisted processing of agro-waste fibrous composites.
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  Data: <searchLink fieldCode="AR" term="%22Brooks%2C+Adam+L%2E%22">Brooks, Adam L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Hongyu%22">Zhou, Hongyu</searchLink><relatesTo>1</relatesTo><i> hongyu.zhou@uah.edu</i><br /><searchLink fieldCode="AR" term="%22Shen%2C+Zhenglai%22">Shen, Zhenglai</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Construction+%26+Building+Materials%22">Construction & Building Materials</searchLink>. 10/30/2017, Vol. 153, p886-896. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Vacuum+concrete+process%22">Vacuum concrete process</searchLink><br /><searchLink fieldCode="DE" term="%22Agricultural+wastes%22">Agricultural wastes</searchLink><br /><searchLink fieldCode="DE" term="%22Fibrous+composites%22">Fibrous composites</searchLink><br /><searchLink fieldCode="DE" term="%22Synthetic+fibers%22">Synthetic fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Stiffness+%28Mechanics%29%22">Stiffness (Mechanics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This research explored the feasibility of using vacuum-assisted infusion process (VIP) and agricultural waste - based materials to in-situ build unitary (or “monolithic”) structural components and assemblies. Mechanical properties of the natural/synthetic hybrid fiber composite materials were studied. The experimental results show that in combination with a small amount of glass fiber, the nonwoven coconut coir fiber mats can be used as structural sheathing material to provide satisfactory strength and stiffness. In addition, five “unibody” light-frame composite shear panels sheathed with the coconut coir/fiberglass material and two plywood panels were fabricated; and three composite “I”-shape beams were prototyped using the vacuum infusion process. The structural behaviors of the composite shear panels and beams were tested and compared to those of conventional plywood constructions. The results indicate that structural members constructed through VIP have satisfactory stiffness and strength and they offer better structural integrity and energy dissipation over conventional constructions. The design and construction technique outlined in this paper provides a means to in-situ construct complex-shaped structural assemblies with minimal or no joint. The experimental data showed good agreement with results calculated through classical laminate theory (CLT). [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Construction & Building Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.conbuildmat.2017.07.082
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 886
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      – SubjectFull: Vacuum concrete process
        Type: general
      – SubjectFull: Agricultural wastes
        Type: general
      – SubjectFull: Fibrous composites
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      – SubjectFull: Synthetic fibers
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      – SubjectFull: Stiffness (Mechanics)
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      – TitleFull: A monolithic “unibody” construction of structural assemblies through vacuum-assisted processing of agro-waste fibrous composites.
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              Text: 10/30/2017
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              Y: 2017
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