• Chinese Journal of Ship Research
  • Vol. 19, Issue 5, 107 (2024)
Gongrong LI1, Wei SHEN2, Yu QIU2, Jiajing LEI1, and Qijian HE1
Author Affiliations
  • 1China Ship Development and Design Center, Wuhan 430064, China
  • 2School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
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    DOI: 10.19693/j.issn.1673-3185.03441 Cite this Article
    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 Copy Citation Text show less
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    参数名称数值参数名称数值
    弹性模量/GPaE1160拉伸强度/MPaXT800
    E2260YT800
    E338.5ZT
    泊松比μ120.13压缩强度/MPaXC350
    μ130.13YC350
    μ230.13ZC
    剪切模量/GPaG128.5剪切强度/MPaS1245
    G138.5S13
    G238.5S23
    Table 1. Material parameters of carbon fiber
    参数名称数值参数名称数值
    弹性模量/GPa3屈服强度/MPa12
    泊松比0.3密度/(kg·m−31150
    Table 2. Material parameters of sandwich core
    结构部位拉应力/MPa压应力/MPa剪切应力/MPa
    碳纤维面板44.79−47.805.25
    芯材3.26−3.020.71
    Table 3. Calculated stresses of sandwich composite materials
    结构部位Von Mises应力/MPa
    T型材68.78
    螺栓85.03
    Table 4. Calculated stresses of T-section bar and bolt
    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23.91−47.8−5.2544.45−60.26−7.64
    芯材1.00−1.48−0.240.71−0.470.34
    Table 5. The calculation results of the shear joint sandwich composite material
    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68.7859.06
    螺栓85.0385.0376.3178.63
    Table 6. The calculation results of the shear joint T-section bar and bolt
    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44.79−47.804.0865.44−47.8012.35
    芯材3.26−3.02−0.144.26−3.990.71
    Table 7. The calculation results of the pull-out joint sandwich composite material
    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29.5055.522.346.7
    螺栓29.5073.321.952.3
    Table 8. The calculation results of the pull-out joint T-section bar and bolt
    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
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