Chinese Journal of Ship Research, Volume. 19, Issue 5, 107(2024)
Strength test of sandwich composite structure and fatigue life study of typical bolted joints
Figures & Tables(23)
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Table 1. Material parameters of carbon fiber
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参数名称 数值 参数名称 数值 弹性模量/GPa E11 60 拉伸强度/MPa XT 800 E22 60 YT 800 E33 8.5 ZT 泊松比 μ12 0.13 压缩强度/MPa XC 350 μ13 0.13 YC 350 μ23 0.13 ZC 剪切模量/GPa G12 8.5 剪切强度/MPa S12 45 G13 8.5 S13 G23 8.5 S23
Table 2. Material parameters of sandwich core
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参数名称 数值 参数名称 数值 弹性模量/GPa 3 屈服强度/MPa 12 泊松比 0.3 密度/（kg·m−3） 1150
Table 3. Calculated stresses of sandwich composite materials
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结构部位 拉应力/MPa 压应力/MPa 剪切应力/MPa 碳纤维面板 44.79 −47.80 5.25 芯材 3.26 −3.02 0.71
Table 4. Calculated stresses of T-section bar and bolt
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结构部位 Von Mises应力/MPa T型材 68.78 螺栓 85.03
Table 5. The calculation results of the shear joint sandwich composite material
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结构部位 原始模型/MPa 剪切节点/MPa 拉应力 压应力 切应力 拉应力 压应力 切应力 碳纤维面板 23.91 −47.8 −5.25 44.45 −60.26 −7.64 芯材 1.00 −1.48 −0.24 0.71 −0.47 0.34
Table 6. The calculation results of the shear joint T-section bar and bolt
View tableView in ArticleTable 6. The calculation results of the shear joint T-section bar and bolt
结构部位 Von Mises应力/MPa 第1主应力/MPa 原始模型 剪切节点 原始模型 剪切节点 T型材 68.78 59.06 螺栓 85.03 85.03 76.31 78.63
Table 7. The calculation results of the pull-out joint sandwich composite material
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结构部位 原始模型/MPa 拉脱节点/MPa 拉应力 压应力 切应力 拉应力 压应力 切应力 碳纤维面板 44.79 −47.80 4.08 65.44 −47.80 12.35 芯材 3.26 −3.02 −0.14 4.26 −3.99 0.71
Table 8. The calculation results of the pull-out joint T-section bar and bolt
View tableView in ArticleTable 8. The calculation results of the pull-out joint T-section bar and bolt
结构部位 Von Mises应力/MPa 第1主应力/MPa 原始模型 拉脱节点 原始模型 拉脱节点 T型材 29.50 55.5 22.3 46.7 螺栓 29.50 73.3 21.9 52.3
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Gongrong LI, Wei SHEN, Yu QIU, Jiajing LEI, Qijian HE. Strength test of sandwich composite structure and fatigue life study of typical bolted joints[J]. Chinese Journal of Ship Research, 2024, 19(5): 107
Paper Information
Category: Ship Structure and Fittings
Received: Jul. 4, 2023
Accepted: --
Published Online: Mar. 14, 2025
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