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Research Papers

A Noncanonically Shape Laminated Plate Subjected to Impact Loading: Theory and Experiment

[+] Author and Article Information
Natalia V. Smetankina

 A.N. Podgorny Institute for Mechanical Engineering Problems, National Academy of Sciences of Ukraine, 2∕10 Dm. Pozharsky Street, Kharkov 61046, Ukrainensmet@ipmach.kharkov.ua

Alexander N. Shupikov, Sergei Yu. Sotrikhin, Vladimir G. Yareshchenko

 A.N. Podgorny Institute for Mechanical Engineering Problems, National Academy of Sciences of Ukraine, 2∕10 Dm. Pozharsky Street, Kharkov 61046, Ukraine

J. Appl. Mech 75(5), 051004 (Jul 02, 2008) (9 pages) doi:10.1115/1.2936925 History: Received March 12, 2007; Revised February 04, 2008; Published July 02, 2008

This paper suggests an analytical approach to investigating vibrations of a laminated plate with a noncanonical shape in plan view under impact with an impactor having a semispherical end. The approach suggested is based on the immersion method. The dynamic behavior of the plate is described by the first-order theory accounting for transverse shear strain, thickness reduction, and normal element rotation inertia in each layer. Impact has been analyzed for different points of the plate whose contour consists of straight lines and circle arcs. The theoretical results are consistent with experimental data obtained with the dynamic wide-range strain measurement technique.

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Copyright © 2008 by American Society of Mechanical Engineers
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Figures

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Figure 2

Auxiliary rectangular plate

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Figure 3

Experimental setup: (1) indenter, (2) indenter dropping device, (3) laminated plate, (4) bearing plate, (5) strain gauges, (6) WSA, and (7) MADC

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Figure 4

Plate plan view shape

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Figure 7

Strain εx9 and εy9 in point xp=0.205m, yp=0.155m, zp=0.034m for impact in point D(0.205;0.155;0)

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Figure 8

Strain εx9 and εy9 in point xp=0.31m, yp=0.155m, zp=0.034m for impact in point D(0.205;0.155;0)

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Figure 5

Strain εx9 and εy9 in point xp=0.31m, yp=0.155m, zp=0.034m for impact in point C(0.31;0.155;0)

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Figure 6

Strain εx9 and εy9 in point xp=0.205m, yp=0.155m, zp=0.034m for impact in point C(0.31;0.155;0)

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