[2119] DYNAMIC RESPONSE ANALYSIS OF FOUR-SIDE SUPPORTED RC SLABS UNDER IMPACT LOADING
キーワード：erosion technique、finite element analysis、four-side supported RC slabs、impact loading、エロ―ジョン、四辺単純支持RC版、有限要素解析、衝撃荷重
In this study, 3D elasto-plastic dynamic response analyses for four-side rectangular reinforced concrete slabs under impact loading were conducted. An analytical method with erosion technique was proposed, and its applicability was investigated comparing with the experimental results under various impact velocities. The results obtained from this study were as follows: 1) configurations of time histories of the impact force, the reaction force, and the deflection of the lower surface at the loading point can be better predicted for all cases; 2) crack patterns can be better evaluated using the proposed method.