The Buckling Analysis of Stiffened Plate with Hole($1^{st}$ Report) -Compression Buckling-

보강(補剛)된 유공판(有孔板)의 좌굴강도해석(挫屈强度解析)(제1보)(第1報) -압축(壓縮) 좌굴(挫屈)-

When the perforated plate is under in-plane load of compression, buckling analysis becomes to be necessary because of the presence of stress concentration around holes. To constraint it, we need reinforcement. The methods of reinforcement are attaching doubler around hole and attaching stiffener in the direction of initial stress. In this paper, two methods are investigated mentioned above, which of the two better effective reinforcement. In the consequence of the above investigation, following conclusion was obtained. The method of doubler reinforcement was less buckling stress than that of stiffener because the former had large compressive stress. So, effective method of reinforcement is stiffener reinforcement.