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Showing 1 to 8 of 8 for “"unsymmetric laminates"”.
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SMA-Induced Deformations In general Unsymmetric Laminates
General unsymmetric laminates exhibit large natural curvatures at room temperature. Additionally, inherent to most unsymmetric laminates is the presence of two stable configurations. Multiple configurations and stability issues arise because of the geometric nonlinearities associated with the large …
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Nonlinear Analysis of Unsymmetric Laminates under Cylindrical Bending
<p>Nonlinear analysis of unsymmetric composite long, narrow laminates under cylindrical bending is studied. The nonlinear governing equations are obtained to analyze the cylindrical bending of arbitrary laminates. The <em>von-Karman</em> type geometrical nonlinearity is incorporated in the …
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An analysis of interlaminar stresses in unsymmetrically laminated plates
… numerical study of interlaminar stresses within unsymmetrically laminated plates is presented. The focus of the study is upon the linear thermoelastic response of thin square laminated composite plates subjected to extensional, compressive, or thermal loading. Symmetric and unsymmetric 0/90, …
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Deformations of In-plane Loaded Unsymmetrically Laminated Composite Plates
This study focuses on the response of flat unsymmetric laminates to an inplane compressive loading that for symmetric laminates are of sufficient magnitude to cause bifurcation buckling, postbuckling, and secondary buckling behavior. In particular, the purpose of this study is to investigate …
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Use of Piezoelectric Actuators to Effect Snap-Through Behavior of Unsymmetric Composite Laminates
… to effect snap-through behavior of simple unsymmetric cross-ply composite laminates is examined. Many unsymmetric laminates have more than one stable room-temperature shape and can be snapped through from one stable shape to another. In this new concept for morphing structures, one or more …
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SMA-induced deformations in unsymmetric cross-ply laminates
… for predicting SMA-induced deformations in an unsymmetric cross ply laminate. A previously developed theory is used to predict the room-temperature shape of the cross-ply laminate by minimizing its total potential energy. Then, using the principle of virtual work, equations relating the shape …
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Deformations of Unsymmetric Composite Panels
This work discusses the deformations of various unsymmetric composite panels due to thermal and mechanical loads. Chapter 2 focuses on the warpage of large unsymmetric curved composite panels due manufacturing anomalies. These panels are subjected to a temperature change of -280°F to simulate the …
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Finite element stress analysis of idealized composite damage zones
… nonlinear analysis of hygrothermal effects in laminates with idealized damage zones. 2. A three layer damage zone (cutout) in an eight layer laminate. 3. The effects of varying geometric parameters such as cutout width and layer thickness. 4. More detailed nonlinear analysts. 5. An improved …