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![The first submarine, invented by David Bushnell (1742-1824), was constructed circa 1776. The small submarine is a thin shell structure called](thumbnails/s1.jpg) |
![Various types of analysis of thin steel shells according to Eurocode EN 1993-1-6](thumbnails/s2.jpg) |
![Load-axial-end-shortening curves corresponding to various types of shell analysis defined in the previous image](thumbnails/s3.jpg) |
![Three types of equilibrium branching behavior](thumbnails/s4.jpg) |
![undeformedand deformedstates](thumbnails/s5.jpg) |
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The first submarine, invented by David Bushnell (1742-1824), was constructed circa 1776. The small submarine is a thin shell structure called "Turtle". |
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Various types of analysis of thin steel shells according to Eurocode EN 1993-1-6 |
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Load-axial-end-shortening curves corresponding to various types of shell analysis defined in the previous image |
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Three types of equilibrium branching behavior |
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undeformedand deformedstates |
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![Referene, Initial and Current configurations of a shell reference surface](thumbnails/s6.jpg) |
![Buckling prevention strategies](thumbnails/s7.jpg) |
![Typical layup of a laminated composite plate or shell wall](thumbnails/s8.jpg) |
![Variable half-thickness of a laminated shell wall](thumbnails/s9.jpg) |
![Resultants acting on a shell wall element](thumbnails/s10.jpg) |
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Referene, Initial and Current configurations of a shell reference surface |
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Buckling prevention strategies |
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Typical layup of a laminated composite plate or shell wall |
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Variable half-thickness of a laminated shell wall |
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Resultants acting on a shell wall element |
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![Resultants are the integrals of stress components over the shell wall thickness, H](thumbnails/s11.jpg) |
![Integrated stress-strain relations in a laminated composite shell wall, for example.](thumbnails/s12.jpg) |
![This image represents a single layer in a shell wall. Shown are coordinate directions,](thumbnails/s13.jpg) |
![Transformation of stresses from material coordinates (the](thumbnails/s14.jpg) |
![Transformation of strains from material coordinates (the](thumbnails/s15.jpg) |
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Resultants are the integrals of stress components over the shell wall thickness, H |
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Integrated stress-strain relations in a laminated composite shell wall, for example. |
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This image represents a single layer in a shell wall. Shown are coordinate directions, "x" and "theta" (shell coordinates) and "1" and "2" (orthotropic material coordinates) |
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Transformation of stresses from material coordinates (the "1, 2" system) to shell coordinates (the "x,theta" system) |
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Transformation of strains from material coordinates (the "1, 2" system) to shell coordinates (the "x,theta" system) |
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