Sesearch on the mechanism of debonding process on the matrix-reinforcement interface of metai-matrix composites and the development of the method of analysis

超基体复合材料基体-增强界面脱粘机理研究及分析方法发展

• 批准号: 08455058
• 负责人: INOUE Tatsuo
• 金额: $ 4.03万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455058/
• 关键词: Metal matrix composite; Debonding on interface; Fiber-reinforced MMC; Particle-dispersed MMC; Surface-modified MMC; Finite elemnet method; Molecular dynamics; Residual stress; クリープ; 連続体損傷力学; ユニットセルモデル; アルミニウム合金; SiCウィスカ

Results obtained in the present project are summarized as follows ;1.Fiber-reinforced MMC : Creep damage in an SiC-whisker reinforced Al allpy was numerically simulated by using a unit cell model. The creep damage was revealed to initiate at the edge of whisker, from which a subsequent debonding developed. An FEM code was established for quenching process of MMC.The formation of voids and progress of damage initiated from voids were found to occur along the inteface.2.Particle-dispersed MMC : Alminum dispersed with SiC particles was processed by a centrifugal casting method. The effect of casting condition on the radial distribution of particles was clarified experimentally. A FEM code for elastic-viscoplastic strees analysis was constructed based on the solidification of molten matrix considering the particle motion. The validity of the code was confirmed by experimental results.3.Surface-modified MMC : A FEM code was proposed by modeling the detonation-coating process of ceramics on a metal surface. A large tensile stress was found to occur in coated layr. The equivalent stress of Mises type may control the failure of detonation-coated layr in an alumina-coated stainless steel under biaxial loading. Structural analysis using a molecular dynamics procedure developed for sputtering process suggested that an anchor effect was the main mechanism of interface bonding.

主要研究结果如下：1.纤维增强MMC：采用单胞模型对SiC晶须增强Al合金的蠕变损伤进行了数值模拟。蠕变损伤起始于晶须边缘，随后发生脱粘。建立了MMC淬火过程的有限元分析程序，研究了界面处空洞的形成和由空洞引发的损伤过程，发现空洞的形成和损伤过程沿着界面进行。通过实验阐明了浇注条件对颗粒径向分布的影响。建立了考虑颗粒运动的熔体凝固过程的弹粘塑性应力分析有限元程序。3.表面改性MMC：通过模拟金属表面陶瓷的爆炸包覆过程，建立了一个有限元程序。涂层中存在较大的拉应力。Mises型等效应力可以控制氧化铝涂层不锈钢爆炸涂层在双向载荷作用下的破坏。利用分子动力学程序对溅射过程进行结构分析，结果表明锚效应是界面结合的主要机制。

项目成果

"Processing of Metall Matrix Composite by Centrifugal Casting Technique and Evaluation of Elastic Properties" Journal of the Society of the Materials Science, Japan. Vol.46, No.8. 946-951 (1997)

“离心铸造技术加工金属基复合材料和弹性性能评估”日本材料学会杂志。

Dong-Ying Ju and Tatsuo Inoue: "Thermo-mechanical Behavior and Residual Stress Simulation in Heat Treatment Process of Metal Matrix Composites" Proc.5th Inter.Conf.Residual Stresses. (掲載予定). (1997)

Dong-Ying Ju 和 Tatsuo Inoue：“金属基复合材料热处理过程中的热机械行为和残余应力模拟”Proc.5th Inter.Conf.Residual Stresses（即将出版）。

Tatsuo INOUE: "Simulation of Damaging Interface between Matix and Reinforcement in Metal Matrix Composite" Proc.3rd Asis-Pacific Symp.Adv.Eng.Plast.Appl.321-326 (1996)

Tatsuo INOUE：“金属基复合材料中基质和增强材料之间的损坏界面的模拟”Proc.3rd Asis-Pacific Symp.Adv.Eng.Plast.Appl.321-326 (1996)

Mamoru Mizuno and Tatsuo Inoue: "Simulation of Damaging Interface between Matrix and Reinforcement in Metal Matrix Composite" Proc.3rd Asia-Pacific Symp.Advances Eng.Plasticity & Appllication. 321-326 (1996)

Mamoru Mizuno 和 Tatsuo Inoue：“金属基复合材料中基体和增强体之间的损坏界面的模拟”Proc.3rd Asia-Pacific Symp.Advances Eng.Plasticity

"Thermo-mechanical Behavior and Residual Stress Simulation in Heat Treatment Process of Matal Matrix Composite" Proc.5th Inter.Conf.Residual Stresses. (To appear).

“金属基复合材料热处理过程中的热机械行为和残余应力模拟”Proc.5th Inter.Conf.Residual Stresses。