Structural Modeling of Profiled Edge Laminae (PEL) Tools

[+] Author and Article Information
Daniel F. Walczyk, Yong-Tai Im

Department of Mechanical, Aerospace, & Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180-3590

J. Manuf. Sci. Eng 127(1), 138-147 (Mar 21, 2005) (10 pages) doi:10.1115/1.1826074 History: Received February 17, 2003; Revised April 27, 2004; Online March 21, 2005
Copyright © 2005 by ASME
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Schematics of (a) an unclamped Profiled-Edge Laminae (PEL) tool, (b) an individual lamina, and (c) a clamped PEL tool
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Flowchart for the PEL tooling development and fabrication process
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Schematic showing the structural behavior for a PEL tool. Clamped laminations will be modeled as cantilevers
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(a) 2-D sideview of a PEL tool modeled as n layered laminations subjected to a lateral forming load F, which experiences a lateral deflection δ, and (b) 3-D geometry of a single lamina
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Individual structural models of n laminae in a PEL array subjected to lateral load F , interlaminar frictional loads, and normal loads concentrated at the lamina tip
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Individual structural models of n laminae in a PEL array subjected to lateral load F, interlaminar frictional loads, and normal loads distributed as a ramp function along the entire length of lamina. Note that laminae are not shown in their deflected states.
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(a) Schematic of adhesively bonded PEL tool, and (b) shear deflection 𝛁 of the adhesive bond between assumed “rigid” laminae, and the geometry for estimating this deflection
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Model of a single cantilevered lamination subjected to oppositely directed shear forces due to an adhesive bonding layer
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Test set-up used for validating PEL tool structural models
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(a) Schematic and (b) picture of experimental test set-up used for structural model validation
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Schematic of the lap shear specimen used to obtain Ga
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Deflection plots from structural FEM analyses for (a) Cases 1 and (b) Case 3
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FEM model deflection plot for adhesively bonded laminations with Ga=8.2 MPa




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