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TECHNICAL PAPERS

On Displacement Fields in Orthotropic Laminates Containing an Elliptical Hole

[+] Author and Article Information
S. M. Chern

Civil Engineering Department, Chung-Cheng Institute of Technology, Tahsi, Taoyuan 33509, Taiwan

M. E. Tuttle

Mechanical Engineering Department, University of Washington MS 352600, Seattle, WA 98195

J. Appl. Mech 67(3), 527-539 (Apr 26, 2000) (13 pages) doi:10.1115/1.1309545 History: Received January 25, 1999; Revised April 26, 2000
Copyright © 2000 by ASME
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References

Figures

Grahic Jump Location
Schematic of infinite orthotropic plate with elliptical hole
Grahic Jump Location
(a) Measured v-displacement fringe pattern induced in a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy∞=93 MPa (6). (b) v-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa, predicted according to the original Savin solution. (c) v-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa, predicted according to the revised solution. (d) v-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa, predicted by a finite element method (ANSYS) analysis.
Grahic Jump Location
(a) Measured u-displacement fringe pattern induced in a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa (6). (b) u-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa, predicted according to the original Savin solution. (c) u-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa, predicted according to the revised solution. (d) u-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=93 MPa, predicted by the finite element method (ANSYS) analysis.
Grahic Jump Location
(a) v-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the original Savin solution. (b) v-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the revised solution. (c) v-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted by the finite element method (ANSYS) analysis.
Grahic Jump Location
(a) u-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the original Savin solution. (b) u-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the revised solution. (c) u-displacement fringe pattern for a [0/±45/90]s boron-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted by the finite element method (ANSYS) analysis.
Grahic Jump Location
(a) Measured v-displacement fringe pattern induced in a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa (7). (b) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa, predicted according to the original Savin solution (resolution reduced to 50.8 μm). (c) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa, predicted according to the revised solution. (d) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa, predicted by the finite element method (ANSYS) analysis.
Grahic Jump Location
(a) u-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa, predicted according to the original Savin solution (resolution reduced to 50.8 μm). (b) u-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa, predicted according to the revised solution. (c) u-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to σy=198 MPa, predicted by the finite element method (ANSYS) analysis.
Grahic Jump Location
(a) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the original Savin solution (resolution=2.76 μm). (b) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the revised solution (resolution=1.38 μm). (c) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted by the finite element method (ANSYS) analysis (resolution=1.38 μm).
Grahic Jump Location
(a) u-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the original Savin solution (resolution=2.76 μm). (b) u-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted according to the revised solution (resolution=1.38 μm). (c) v-displacement fringe pattern for a [0/±45/90]s glass-epoxy panel containing a 25.4-mm-dia circular hole, subjected to τxy=17.2 MPa, predicted by the finite element method (ANSYS) analysis (resolution=1.38 μm).

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