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首页> 外文期刊>Composite Structures >Optimum glass fiber volume fraction in the adhesive for the Al-SUS adhesively bonded joints at cryogenic temperatures
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Optimum glass fiber volume fraction in the adhesive for the Al-SUS adhesively bonded joints at cryogenic temperatures

机译：低温下用于Al-SUS粘合接头的粘合剂中的最佳玻璃纤维体积分数

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摘要

The tight control of adhesive thickness in large bonding areas such as the secondary barrier of CCS (cargo containment system) for LNG (Liquefied Natural Gas) carriers or floaters is difficult and expensive although the adhesive thickness is a dominant parameter to determine the bonding performance of adhesively bonded joint, especially at cryogenic temperatures. Therefore, the method for improving bonding strength and fracture toughness for thick adhesive layer was investigated by reinforcing the adhesive layer with glass fiber mat for the robust and sustainable system design for the secondary barrier. Randomly oriented E-glass fiber mat was used as reinforcement for the film type epoxy adhesive. The lap shear strength and fracture behavior were investigated with respect to fiber volume fraction, and compared to those of the adhesive without reinforcement. The effects of repeated thermal shocks on adhesive bonding performances of adhesive joints with reinforced adhesive were also studied. The experimental results revealed that the randomly oriented glass fiber reinforcement improved much the bonding strength and fracture toughness of adhesive even with 1.0 mm thickness at the cryogenic temperature. Also it was found that the enhancement of bonding performances strongly depended on the CTE (Coefficient of Thermal Expansion) differences between the stainless steel foil and reinforced adhesive. Finally an optimum volume fraction of the glass fiber reinforcement was proposed for the newly developed Al-SUS adhesively bonded joint.
机译：尽管胶粘剂厚度是决定胶粘剂粘合性能的主要参数，但要严格控制胶粘剂厚度在大的粘合区域（例如，CCS（货物密封系统）的第二道屏障）对LNG（液化天然气）运输工具或浮子的控制是困难且昂贵的。粘接接头，特别是在低温下。因此，研究了通过用玻璃纤维垫增强粘合层以增强次生屏障的鲁棒性和可持续性的系统设计，从而改善厚粘合层的粘合强度和断裂韧性的方法。使用无规取向的E-玻璃纤维毡作为薄膜型环氧胶粘剂的增强材料。针对纤维体积分数研究了搭接剪切强度和断裂行为，并将其与没有增强的粘合剂进行了比较。还研究了反复的热冲击对增强型胶粘剂胶接接头胶接性能的影响。实验结果表明，即使在低温下厚度为1.0 mm，无规取向的玻璃纤维增​​强材料也可以极大地提高粘合剂的粘结强度和断裂韧性。还发现粘合性能的增强很大程度上取决于不锈钢箔和增强型粘合剂之间的CTE（热膨胀系数）差异。最后，为新开发的Al-SUS粘接接头提出了玻璃纤维增​​强材料的最佳体积分数。

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  • 来源
    《Composite Structures》 |2014年第2期|119-128|共10页
  • 作者

    Chang Seon Bang; ChoongHeum Park; Dai Gil Lee;

  • 作者单位

    SAMSUNG Heavy Industries, 530, Jangpyeong-dong, Geoje-si, Gyeongsangnam-do 656-710, Republic of Korea;

    SAMSUNG Heavy Industries, 530, Jangpyeong-dong, Geoje-si, Gyeongsangnam-do 656-710, Republic of Korea;

    School of Mechanical Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    LNG; CCS; Metal foil joints; Glass fiber reinforcement; Cryogenic temperature; Repeated thermal shock;

    机译：液化天然气;CCS;金属箔接头;玻璃纤维增​​强;低温;反复热冲击;

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