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Axisymmetric pre-buckling deformation from BIGBOSOR4 of the nonlinearly optimized “mich1” configuration

Fig. 34 Axisymmetric pre-buckling deformation from BIGBOSOR4 of the nonlinearly optimized “mich1” configuration. The optimized dimensions, the local and general buckling load factors, and the maximum effective stress for this nonlinearly optimized “mich1” shell wall profile are listed in Table 4. This figure is analogous to Fig. 10, which pertains to the nonlinearly optimized complexly corrugated specific case called “mich8”. This configuration in which YPLATE(1) > YPLATE(2) expands in the axial direction under the applied uniform external lateral normal pressure, and the nonlinear load-ENDUVS curve exhibits a stiffening characteristic with increasing pressure, as shown in Fig. 36.

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