Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement

Variable stiffness laminates can be manufactured using curvilinear fiber paths. A curvilinear fiber path is generally defined based on the plate size and has a curvature that is dependent on the plate size. In practice, however, the fiber path must satisfy manufacturing constraints, such as the mini...

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Main Authors: Nik Mahdi Arian, Lessard Larry, Pasini Damiano
Format: Article
Language:English
Published: De Gruyter 2015-03-01
Series:Science and Engineering of Composite Materials
Subjects:
Online Access:https://doi.org/10.1515/secm-2014-0167
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author Nik Mahdi Arian
Lessard Larry
Pasini Damiano
author_facet Nik Mahdi Arian
Lessard Larry
Pasini Damiano
author_sort Nik Mahdi Arian
collection DOAJ
description Variable stiffness laminates can be manufactured using curvilinear fiber paths. A curvilinear fiber path is generally defined based on the plate size and has a curvature that is dependent on the plate size. In practice, however, the fiber path must satisfy manufacturing constraints, such as the minimum turning radius imposed by the automated fiber placement machine, thereby limiting the possible amount of fiber steering. In this work, we studied the effect of the plate size on the structural properties of a plate manufactured with curvilinear fibers. We considered four plate sizes, which were designed by a constant curvature fiber path. We optimized the plates for both maximum buckling load and in-plane stiffness. The results showed that the in-plane stiffness of the plate was not controlled by the plate size, whereas the buckling load was highly affected by the curvature of the fiber path. Hence, the potential of a buckling load increase reduced for plate sizes smaller than the minimum turning radius. In addition, for a given maximum curvature of the fiber path, the influence of a complex layup on the buckling load was marginal.
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spelling doaj.art-f18ab38864b140c998c5fbaaef06f25d2022-12-21T22:38:19ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592015-03-0122215716310.1515/secm-2014-0167Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placementNik Mahdi Arian0Lessard Larry1Pasini Damiano2Department of Mechanical Engineering, McGill University, Macdonald Engineering Building, 817 Sherbrooke West, Montreal, QC, H3A 0C3, CanadaDepartment of Mechanical Engineering, McGill University, Macdonald Engineering Building, 817 Sherbrooke West, Montreal, QC, H3A 0C3, CanadaDepartment of Mechanical Engineering, McGill University, Macdonald Engineering Building, 817 Sherbrooke West, Montreal, QC, H3A 0C3, CanadaVariable stiffness laminates can be manufactured using curvilinear fiber paths. A curvilinear fiber path is generally defined based on the plate size and has a curvature that is dependent on the plate size. In practice, however, the fiber path must satisfy manufacturing constraints, such as the minimum turning radius imposed by the automated fiber placement machine, thereby limiting the possible amount of fiber steering. In this work, we studied the effect of the plate size on the structural properties of a plate manufactured with curvilinear fibers. We considered four plate sizes, which were designed by a constant curvature fiber path. We optimized the plates for both maximum buckling load and in-plane stiffness. The results showed that the in-plane stiffness of the plate was not controlled by the plate size, whereas the buckling load was highly affected by the curvature of the fiber path. Hence, the potential of a buckling load increase reduced for plate sizes smaller than the minimum turning radius. In addition, for a given maximum curvature of the fiber path, the influence of a complex layup on the buckling load was marginal.https://doi.org/10.1515/secm-2014-0167automated fiber placementfiber path curvaturegaps and overlapsmulti-objective optimizationsize-dependent
spellingShingle Nik Mahdi Arian
Lessard Larry
Pasini Damiano
Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement
Science and Engineering of Composite Materials
automated fiber placement
fiber path curvature
gaps and overlaps
multi-objective optimization
size-dependent
title Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement
title_full Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement
title_fullStr Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement
title_full_unstemmed Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement
title_short Size-dependent behavior of laminates with curvilinear fibers made by automated fiber placement
title_sort size dependent behavior of laminates with curvilinear fibers made by automated fiber placement
topic automated fiber placement
fiber path curvature
gaps and overlaps
multi-objective optimization
size-dependent
url https://doi.org/10.1515/secm-2014-0167
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