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The stability of a plate structure is very crucial problem. Because the buckling strength of thin plates is lower than the yield strength of the material, spot welded reinforcement material is commonly used. But, the spot welding is practically designed by experiential decisions, so it is inefficient and has the risks of buckling demolition. In this study, relative location of spot welding was chosen for parameter and the result shows that the maximized reinforcement effect relative location of spot welding under compression were that on the condition of r<=1. in model I, model Ⅱ, relative locations of longitudinal and transverse directions were around the center of each available region, relative locations of model J] were symmetrically according to boundary line of separated regions, in model Ⅲ, relative locations were around the center and the shape of the locations was arrayed like V, that on the condition of r>=1, the results were similar to the above. And the case of shearing, relative locations were similar to that of compression, but were closer to the center of each available region than compression.

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ABSTRACT

1. 서론

2. 치수최적설계

3. 해석모델 및 해석방법

4. 결과 및 고찰

5. 결론

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UCI(KEPA) : I410-ECN-0101-2009-556-014004620