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A study on the static behavior and to raise to bounce before and after to inflate to crack some sheets of wall structure that consists of a pillar and a pillar of iron with holes. Under axial compression, which may have a different format for to inflate to crack. The problem is to inflate to crack that occurs in a different format.

Research on buckling static and behavior before and after buckling. Some of the panels that compose the pole. And a steel pole hole. Under axial compression. This may be a different format for the buckling. The problem is buckling occurs in different forms.

Research on static and buckling behavior before and after buckling. Plate structure of thin walls constitute pole. And steel poles with hole under compressive axial loadThe problem is the buckling occurs in a different format.