Threshold Properties of Woven GFRP Laminates under Acid Environment

酸性环境下编织 GFRP 层压板的阈值性能

基本信息

  • 批准号:
    13650103
  • 负责人:
  • 金额:
    $ 2.3万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2002
  • 项目状态:
    已结题

项目摘要

The stress corrosion cracking mechanism of glass fiber reinforced plastics (GFRP) were investigated in this work. First of all, an effect of the constituents on the fracture and the threshold properties on the crack propagation of woven C-glass/vinyl ester laminates. The propagation behavior was evaluated in HCl solution, in water and in air. As a result, the behavior was plotted on the da/dt-K_I diagrams. The crack-propagation rate da/dt distribution in water was largely enhanced in comparison with that in the air, and it was nearly as promoted as that in the HCl solution. Therefore the crack-propagation properties of unidirectional FRP were investigated to confirm the role fiber direction. The threshold properties the 90° unidirectional FRP were appeared on the da/dt-K_I diagrams and the it is confirmed that the cause is the fiber bridging by the FEM analysis.Single fiber model composites were applied to evaluate the interfacial degradation mechanisms. The degradation was described b … More y interfacial debonding energies in this study. And the interfacial debond length near the fiber failure point was measured to calculate the energies. The matrix plastic zone was also measured, therefore the plasticity was considered in the energy balance model to decide the interfacial debonding energies. Furthermore it was suggested that the interfacial debonding energy kept the constant value.In order to estimate the fracture behaviors of the fiber and interface, the double cleavage drilled compression (DCDC) test was applied. And one fiber bundle was embedded in the specimen in order to estimate the fracture mechanisms. The crack was deflected around the fiber bundle and the fiber/matrix interface was debonded. As a result, it was found that the debond length depended on the interfacial degradation. The debonding length and interfacial debonding energy decided the bridging stress on the crack surface. And the bridging stress determined the traction on crack surface, although the traction decreased due to the fiber failure. Finally the toughening effect that depended on the traction was discussed. Less
研究了玻璃纤维增强塑料(GFRP)的应力腐蚀开裂机理.首先,研究了玻璃纤维/乙烯基酯机织层合板的组分对断裂的影响以及裂纹扩展的门槛值特性。在盐酸溶液中,在水中和在空气中的传播行为进行了评价。结果表明,在da/dt-K_I图上绘制了该行为。裂纹扩展速率da/dt分布在水中比在空气中有很大的提高,而在HCl溶液中的提高程度与在空气中的接近。因此,单向FRP的裂纹扩展性能进行了研究,以确定纤维方向的作用。在da/dt-K_I曲线上观察到90°单向纤维增强复合材料的临界性能,通过有限元分析证实了临界性能的产生是由于纤维桥联所致。降解描述为B ...更多信息 y界面脱粘能。通过测量纤维断裂点附近的界面脱粘长度,计算了界面脱粘能量。同时还测量了基体的塑性区,因此在能量平衡模型中考虑了基体的塑性,从而确定了界面脱粘能。采用双劈裂钻孔压缩(DCDC)试验对纤维和界面的断裂行为进行了评价。并将一束纤维束埋入试件中,以估计断裂机制。裂纹绕纤维束偏转,纤维/基体界面发生脱粘。结果表明,脱粘长度取决于界面降解程度。界面脱粘长度和界面脱粘能决定了裂纹表面的桥接应力。纤维断裂使裂纹表面的牵引力减小,但桥连应力决定了裂纹表面的牵引力。最后讨论了与牵引力有关的增韧效果。少

项目成果

期刊论文数量(20)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Hiroyuki Kawada: "A Study on Stress-Corrosion Cracking using Single Fiber Model Specimen (Degradation Properties of GFRP caused by Water Absorption)"JSME/ASME International Conference on Materials and Processing 2002 ?The 10^<th> JSME Materials and Proces
Hiroyuki Kawada:“A Study on Stress-Corrosion Cracking using Single Fiber Model Specliment(GFRP吸水引起的降解性能)”JSME/ASME国际材料与加工会议2002年第10次JSME材料与加工
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Hiroyuki Kawada: "Characteristic of crack propagation and threshold in woven GFRP laminates under acid stress environment"The Thirteenth International Conference on Composite Materials. 13. ID1368 (2001)
Hiroyuki Kawada:“酸性应力环境下​​编织 GFRP 层压板的裂纹扩展特性和阈值”第十三届国际复合材料会议。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
川田宏之: "酸応力環境下でのGFRPのき裂進展挙動"材料の科学と工学. 39. 23-27 (2002)
Hiroyuki Kawada:“酸性应力环境下​​GFRP的裂纹扩展行为”材料科学与工程39. 23-27 (2002)。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
H. Kawada, et al.: "The effect of an acidic stress environment on the stress-intensity factor for GRP laminates"Composites Science and Technology. vol. 61. 11090-11114 (2001)
H. Kawada 等人:“酸性应力环境对 GRP 层压板应力强度因子的影响”《复合材料科学与技术》。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
H. Kawada, et al.: "Study on Stress Corrosion Cracking of GFRP Using Single-fiber Model Specimens (Evaluation of Interfacial Degradation by Energy-balance Model)"JSMS COMPOSITES-32. vol. 1. 75-78 (2003)
H. Kawada 等人:“使用单纤维模型样本研究 GFRP 的应力腐蚀开裂(通过能量平衡模型评估界面退化)”JSMS COMPOSITES-32。
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    0
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KAWADA Hiroyuki其他文献

Electropulsing suppresses extrusion growth in polycrystalline copper subjected to fatigue loading
电脉冲抑制疲劳载荷下多晶铜的挤压生长
  • DOI:
    10.1299/mej.23-00027
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0.5
  • 作者:
    SASA Haruka;SHIN Jeehwan;HOSOI Atsushi;KITANO Makoto;KAWADA Hiroyuki
  • 通讯作者:
    KAWADA Hiroyuki
固執すべり帯の成長抑制におけるパルス電流密度の影響
脉冲电流密度对持续滑移区生长抑制的影响
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    SASA Haruka;SHIN Jeehwan;HOSOI Atsushi;KITANO Makoto;KAWADA Hiroyuki;佐々春佳,シンジファン,細井厚志,川田宏之
  • 通讯作者:
    佐々春佳,シンジファン,細井厚志,川田宏之

KAWADA Hiroyuki的其他文献

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{{ truncateString('KAWADA Hiroyuki', 18)}}的其他基金

Damage Evolution and Long-Term Durability of Polymer Matrix Composite in Water Environment
聚合物基复合材料在水环境中的损伤演变和长期耐久性
  • 批准号:
    20560089
  • 财政年份:
    2008
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Time Dependent Characteristics and Long-term Reliability of PMC in Hostile Environment
恶劣环境下 PMC 的时变特性和长期可靠性
  • 批准号:
    18560088
  • 财政年份:
    2006
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Crack Progress Behavior of Woven GFRP Laminates under acid stress environment
酸应力环境下​​编织 GFRP 层合板的裂纹进展行为
  • 批准号:
    11650104
  • 财政年份:
    1999
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Characteristics of Stress Corrosion Cracking in GFRP Laminates under Acid Stress Environment
酸性应力环境下​​GFRP层合板应力腐蚀开裂特征
  • 批准号:
    09650120
  • 财政年份:
    1997
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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