Mechanism of Impact Damage and CAI Strength Reduction of Fiber Reinforced Composite Laminate
纤维增强复合材料层合板冲击损伤及CAI强度降低机理
基本信息
- 批准号:09650116
- 负责人:
- 金额:$ 2.11万
- 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:1997
- 资助国家:日本
- 起止时间:1997 至 1999
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A research work is conducted to understand CAI (Compression After Impact) problem and to give a theoretical base for estimating the significance of the foreign object impact on the compressive performance of composite laminated structures. The problem consists of two parts:・ Impact damage initiation and development・ Compressive behavior of the damaged plateBoth portions are too complex to simply explain the theoretical idealized solution. So the numerical analysis and model experiments are conducted for both parts to identify the effects of the various parameters such as impact energy, stacking sequence etc on the compressive performance. In order to simulate the damage accumulation process in the interface region, a fracture element is proposed and the simulated results well coincides with the existing theory and many new findings are shown using the damage element, such as unstable delamination propagation at the early stage of the damage accumulation, propagation of all embedded delaminations instead of a few delaminations etc. The theory can be incorporated in the analysis of the compressive behavior of the damaged plate. In the compression problem, three dimensional finite element analysis is conducted to investigate the buckling performance and the postbuckling behavior including the calculation of the fracture mechanical parameter (energy release rates GィイD2IィエD2, GィイD2IIィエD2, GィイD2IIIィエD2) along the embedded delaminations. The complex compressive behavior of the delaminated laminate with many delaminations is well simulated, where the contact problem must be considered. The solution well explains the very complex experimental results including damage propagation before the final fracture. Particularly, the first delamination propagation occurred at the delamination expected from the present analysis.
研究了复合材料层合结构的冲击后压缩问题,为评价外物冲击对复合材料层合结构压缩性能的影响提供了理论依据。问题由两部分组成:·冲击损伤的产生和发展·损伤板的压缩特性这两部分都太复杂,不能简单地解释理论上的理想解。为此,本文对两种构件进行了数值分析和模型试验,研究了冲击能量、堆积顺序等参数对构件抗压性能的影响。为了模拟界面区的损伤累积过程,提出了一种断裂单元,其模拟结果与现有理论吻合较好,并揭示了许多新的发现,如损伤累积初期的分层失稳扩展,该理论可用于分析损伤板的受压性能。在压缩问题中,进行三维有限元分析以研究屈曲性能和屈曲后行为,包括计算沿嵌入脱层沿着的断裂力学参数(能量释放率G_(12)D_2 I_(12)D_2、G_(12)D_2 II_(12)D_2、G_(12)D_2 III_(12)D_2)。该模型较好地模拟了含多个脱层的层合板的复杂压缩行为,其中必须考虑接触问题。该解很好地解释了非常复杂的实验结果,包括最终断裂前的损伤扩展。特别是,第一层离扩展发生在本分析预期的层离处。
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)
H. Suemasu, T. Kumagai and K. Gozu: "Compressive behavior of rectangular composite laminates with multiple circular delaminations I. Experiment and analytical development"AIAA Journal. Vol.36, No.7. 1279-1285 (1998)
H. Suemasu、T. Kumagai 和 K. Gozu:“具有多个圆形分层的矩形复合材料层压板的压缩行为 I. 实验和分析开发”AIAA 期刊。
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- 影响因子:0
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間島理、末益博志: "複合材料積層板中の層間剥離伝播挙動の有限要素解析"日本複合材料学会誌. Vol.25, No.4. 140-148 (1999)
Osamu Majima、Hiroshi Suemasu:“复合材料层压板分层传播行为的有限元分析”日本复合材料学会杂志,第 25 卷,第 4. 140-148 期(1999 年)。
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- 影响因子:0
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H. Suemasu and O. Majima: "Multiple delaminations and their severity in no linear circular plates subjected to transverse loadings"Journal of Composite Materials. Vol.32 No.2. 123-140 (1998)
H. Suemasu 和 O. Majima:“承受横向载荷的非线性圆板中的多重分层及其严重程度”复合材料杂志。
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- 影响因子:0
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H.Suemasu T.Kumagai K Gozu: "Compressive Behavior of Rectangular Composite Laminates with Multiple Circular Delaminations II.Finite Element Analysis" AIAA Journal. 36・7. 1286-1290 (1998)
H.Suemasu T.Kumagai K Gozu:“具有多个圆形分层的矩形复合材料层压板的压缩行为 II.有限元分析”AIAA 杂志 36・7(1998)。
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- 影响因子:0
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H. Suemasu, Osamu Majima, Y. Aoki: "Instability of multiple penny-shape delamination in composite laminates subjected to quasi-static transverse loading"journal of Reinforced Plastics and Composites. Vol.18, No.12. 1156-1169 (1999)
H. Suemasu、Osamu Majima、Y. Aoki:“在准静态横向载荷作用下复合材料层压板中多便士形状分层的不稳定性”《增强塑料与复合材料》杂志。
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SUEMASU Hiroshi其他文献
SUEMASU Hiroshi的其他文献
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{{ truncateString('SUEMASU Hiroshi', 18)}}的其他基金
Mechanism of Compressive strength of carbon fiber composite laminates with a notch
带缺口碳纤维复合材料层压板抗压强度机理
- 批准号:
15K06607 - 财政年份:2015
- 资助金额:
$ 2.11万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The strength reduction of the composite structures due to damage and development of damage simulation method
复合材料结构损伤引起的强度降低及损伤模拟方法的发展
- 批准号:
17560080 - 财政年份:2005
- 资助金额:
$ 2.11万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Mechanism of Compressive Strength Reduction due to Impact damage in Composite Laminate and Material Design
复合材料层合板冲击损伤导致抗压强度降低的机理及材料设计
- 批准号:
06650765 - 财政年份:1994
- 资助金额:
$ 2.11万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Buckling and Postbuckling Behaviors of Composite Panels with a Delamination
分层复合材料板的屈曲和屈曲后行为
- 批准号:
63550061 - 财政年份:1988
- 资助金额:
$ 2.11万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)