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| EXAMPLE 3: Optimization of a ring-stiffened cylindrical shell with a "wavy" wall |
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| EXAMPLE 4, Slide 1: Optimization of externally pressurized, internally isogrid-stiffened, ellipsoidal shell |
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| EXAMPLE 4, Slide 2: Optimization of an extenally pressurized ellipsoidal shell with thickness that varies along the meridian |
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| EXAMPLE 4, Slide 3: Axisymmetric buckling modal imperfection shape: Mode 1 |
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| EXAMPLE 4, Slide 4: Axisymmetric deformation of the ellipsoidal shell with a +mode 1 imperfection shape |
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| EXAMPLE 4, Slide 5: Axisymmetric deformation of the ellipsoidal shell with a -mode 1 imperfection shape |
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| EXAMPLE 4, Slide 6: Axisymmetric buckling modal imperfection shape: Mode 2 |
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| EXAMPLE 4, Slide 7: Axisymmetric deformation of the ellipsoidal shell with a +mode 2 imperfection shape |
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| EXAMPLE 4, Slide 8: Axisymmetric deformation of the ellipsoidal shell with a -mode 2 imperfection shape |
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| EXAMPLE 4, Slide 9: Seven analyses the last six of which produce behavioral constraints and corresponding design margins |
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| EXAMPLE 4, Slide 10: Design margins that affect the evolution of the optimum design of the externally pressurized isogrid-stiffened ellipsoidal shell |
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| EXAMPLE 4, Slide 11: STAGS 360-degree model of the ellipsoidal shell optimized by GENOPT |
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| EXAMPLE 4, Slide 12: Load-deflection curves from GENOPT and STAGS for an optimized ellispoidal shell |
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| EXAMPLE 4, Slide 13: Load-deflection curves from STAGS for ellipsoidal shells with various imperfections |
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| EXAMPLE 4, Slide 14: Non-axisymmetric buckling mode from STAGS for an ellipsoidal shell optimized by GENOPT |
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