1. Modeling the effect of automated fiber placement induced gaps based on serial layer scanned point clouds.
- Author
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Hu, Ye, Wang, Qing, Wang, Weiwei, Tang, Yipeng, Wang, Han, Xu, Qiang, and Ke, Yinglin
- Subjects
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POINT cloud , *ULTIMATE strength , *FIBER orientation , *IMPACT (Mechanics) , *LAMINATED materials , *TENSILE strength - Abstract
The gap is one of the most common defects during the AFP process, which has a nonnegligible impact on the mechanical properties of laminates. This paper proposes a novel three-dimension reconstructive gap model based on the in-process serial layer scanned point clouds, which can characterizes the gap features inside the laminate and pre-determine the mechanical performance before the subsequent procedures. The measured point cloud will be transformed into eligible and processible formats and then be used to generate a finite element grid using the element-based material property assignment method. The local material properties and fiber orientation are defined by previously assigned classes and grid geometries respectively. The effect of gap size on the in-plane tensile strength and damage evolution of laminates is investigated and both the experimental and simulation results find that the ultimate strength and stiffness show a significant decrease with the increase of gap size. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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