診断・補修・補強 (2)

[I-140] NONLINEAR STRESS ANALYSIS FOR STEEL PLATE BONDING CFRP SHEET UNDER UNIAXIAL TENSILE LOADING

*PHAM NGOCVINH¹、DANIEL RODRIGUEZ　AMATON¹、宮下 剛¹、大垣 賀津雄²、奥山 雄介³、秀熊 佑哉 ⁴、原田 拓也⁵ (1. 長岡技術科学大学、2. ものつくり大学、3. 長野工業高等専門学校、4. 日鉄ケミカル＆マテリアル、5. 高速道路総合技術研究所)

Keywords:Nonlinear analysis, Steel plate, CFRP sheet, Repair

Currently, some studies proposed linear theoretical analysis to determine the peeling strength of CFRP sheet by calculating the principal stress on the adhesion layer, and there is no study in which nonlinear analysis has been mentioned. Therefore, this study establishes a nonlinear theoretical analysis method considering the nonlinear material condition of steel, adhesion layer, and CFRP sheet; for steel plate bonding a layer of the CFRP sheet under uniaxial tensile loading.