利用声发射技术监测颗粒填充聚合物材料的裂纹扩展过程

赵方芳; 罗景润; 田常津; 金周庚; 何颖波

doi:10.11858/gywlxb.2000.03.014

利用声发射技术监测颗粒填充聚合物材料的裂纹扩展过程

doi: 10.11858/gywlxb.2000.03.014

1.
中物院结构力学研究所，四川绵阳 621900；
2.
中物院研究生部，四川绵阳 621900；
3.
航天材料及工艺研究所，北京 100076

详细信息

通讯作者:
赵方芳

计量
- 文章访问数: 7098
- HTML全文浏览量: 342
- PDF下载量: 827
出版历程
- 收稿日期: 1999-11-26
- 修回日期: 2000-05-08
- 发布日期: 2000-09-05

The Crack Growth Process of Particulate Filled Polymer Monitored by Acoustic Emission

1.
Institute of Structural Mechanics, CAEP, Mianyang 621900, China;
2.
Graduate School, CAEP, Mianyang 621900, China;
3.
Institute of Space Material and Technology, Beijing 100076, China

More Information

Corresponding author: ZHAO Fang-Fang

摘要

摘要: 利用声发射技术监测了颗粒填充聚合物材料含单边缺口试样承受三点弯曲载荷时裂纹尖端形成损伤并断裂的全过程，明显地区分了裂纹尖端起裂和扩展的不同阶段，有效地识别了颗粒填充聚合物材料的破坏模式。研究表明，在承载状态下，裂纹尖端损伤起始和扩展分为3个阶段，且裂纹起裂至快速扩展存在一个演变过程；结合SEM观察结果，判定该材料的断裂模式以颗粒与基材的界面分离为主。
- 颗粒填充聚合物材料 /
- 声发射 /
- 损伤 /
- 断裂
Abstract: In this paper, acoustic emission technology was used to monitor the crack initiation and propagation of single edge notched specimen of particulate filled polymer under three-point-bending condition. In the experiments, the initiation and propagation of crack tip were distinctly distinguished, and the damage modes of particulate filled polymer were efficiently identified. The experimental results studied that the initiation and propagation of crack tip can be divided into three periods. SEM results demonstrated that the main fracture mode of the material is the split between filler and matrix.
- particulate filled polymer /
- acoustic emission /
- damage /
- fracture

HTML全文

参考文献(9)

腾山邦久. 声发射技术的应用 [M]. 冯夏庭译. 北京: 冶金工业出版社, 1996.

Carpenter S H. Detecting and Monitoring Crack Growth in Austenitic and Ferritic Steels [R]. DE88004204, 1998.

Dharan C K H. Delamination Fracture and Acoustic Emission in Carbon, Aramid and Glass-Epoxy Composites [R]. DE87008224, 1987.

董海山, 周芬芬. 髙能炸药及其相关物性能 [M]. 北京: 科学出版社, 1989.

[5 ] Luo Jingrun, Zhao Fangfang, Zhang Shouqi, et al. Study on Damage Evolution and Constitutive Relation of PBX [A]. Zhang Shouqi, Zhao Yuhua. Proceedings of the 3rd International Autumn Seminar on Propellants, Explosives and Pyrotechnics [C]. Chengdu: Sichuan Publishing House of Science and Technology, 1999: 390-394.

袁振明, 马羽宽, 何泽云. 声发射技术及其应用 [M]. 北京: 机械工业出版社, 1985.

Luo Jingrun, Zhang Shouqi, Li Dahong, et al. Fracture Characters of High Explosive and Its Simulacrum [A]. Yu M H, Fan S C. Strength Theory [C]. Beijing: Science Press, 1998: 805-809.

Drouillard T F. A History of Acoustic Emission [J]. Journal of Acoustic Emission, 1996, 14(1): 1-25.

Zhu Zuming, Sun Lizhi, Li Shouxin, et al. Acoustic Emission Study on Fracture Mechanisms of SiC Particle Reinforced Aluminum Matrix Composite [A]. Kishi T, Mori Y, Enoki M. Progress in Acoustic EmissionⅦ [C]. Sapporo (Japan): The Japanese Society for Non-Destructive Inspection, 1994: 237-242.

施引文献

资源附件(0)

访问统计