热塑性复合材料制件热残余应力产生原因及测试方法分析

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (2): 72-75.

热塑性复合材料制件热残余应力产生原因及测试方法分析

王长春, 岳广全, 张嘉振, 刘建光

中国商用飞机有限责任公司,北京民用飞机技术研究中心,北京102211

收稿日期:2016-10-20 出版日期:2017-02-28 发布日期:2017-02-28
作者简介:王长春(1983-),男,博士,工程师,主要从事复合材料方面的研究,wangchch2007@163.com。
基金资助:
北京市科技计划项目(Z151100002815021)

FORMATION AND TEST METHODS OF THE THERMO-RESIDUAL STRESSES OF THE THERMOPLASTIC POLYMER MATRIX COMPOSITES

WANG Chang-chun, YUE Guang-quan, ZHANG Jia-zhen, LIU Jian-guang

Beijing Aeronautical Science &
Technology Research Institute, Commercial Aircraft Corporation of China Ltd. COMAC, Beijing 102211, China

Received:2016-10-20 Online:2017-02-28 Published:2017-02-28

摘要/Abstract

摘要： 纤维增强热塑性复合材料以其优异的综合性能被广泛用于大型民用飞机结构,但在复合材料成型过程中基体材料需要经历较高的工艺温度和降温速率;增强纤维和聚合物基体之间因热膨胀系数不匹配、铺层间各向异性和温度的梯度分布等因素将导致在基体中形成热残余应力,这将对所得热塑性复合材料构件的力学性能产生影响,需要在复合材料结构的设计和分析中加以考虑。为有效控制和降低复合材料制件中热残余应力,需要对其产生来源及发展机理进行分析。对热塑性复合材料中热残余应力的形成原因从三个不同层次进行讨论,并分析热塑性复合材料在成型过程中残余应力水平的控制方法,最后对热残余应力的测试方法进行研究,评价了各测试方法的优缺点。

关键词: 热塑性复合材料, 聚合物基体, 热残余应力, 测试方法

Abstract: Fiber reinforced thermoplastic composites have wide application in aircraft structure for the excellent comprehensive advantages of the high toughness, long material storage period and short molding cycle, which have been regarded as the promising advanced aeronautical structure materials. The thermo-residual stresses will be produced in the molding processes of high processing temperature and cooling rates. The stresses caused by the mismatch in coefficients of the thermal expansion, anisotropy of the adjacent fabrics layers and thermal gradient distribution of the thermoplastic composite during the cooling process will play an important role in the mechanical properties of thermoplastic composites, which must be taken into consideration in the design of composite parts. It is beneficial to recognize the formation causes and development of the thermo-residual stresses to effectively control the residual stress level of the thermoplastic parts. The mechanism of thermo-residual stresses formation was firstly analyzed in three different levels in present study, i.e. constituent materials level, lamination plate′s level and the structure parts level. Moreover, testing methods of the thermo-residual stresses of the thermoplastic composites based on the previous literatures were also introduced. The advantages and disadvantages of these methods were evaluated as well.

Key words: thermoplastic composites, polymer matrix, thermo-residual stresses, test methods

中图分类号:

TB332

王长春, 岳广全, 张嘉振, 刘建光. 热塑性复合材料制件热残余应力产生原因及测试方法分析[J]. 玻璃钢/复合材料, 2017, 0(2): 72-75.

WANG Chang-chun, YUE Guang-quan, ZHANG Jia-zhen, LIU Jian-guang. FORMATION AND TEST METHODS OF THE THERMO-RESIDUAL STRESSES OF THE THERMOPLASTIC POLYMER MATRIX COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2017, 0(2): 72-75.

参考文献

[1] 樊在霞, 张瑜. 纤维增强热塑性树脂基复合材料的加工方法[J]. 玻璃钢/复合材料, 2002(4): 22-24.
[2] 吴学东, 丁辛. 热塑性树脂基纺织结构型复合材料[J]. 玻璃钢/复合材料, 1996(6): 34-39.
[3] PP Parlevliet, HEN Bersee, A Beukers. Residual stresses in thermoplastic composites-A study of the literature-Part I: Formation of residual stresses[J]. Composites Part A Applied Science & Manufacturing, 2006, 37(11): 1847-1857.
[4] PP Parlevliet, HEN Bersee, A Beukers. Residual stresses in thermoplastic composites-A study of the literature-Part II: Experimental techniques[J]. Composites Part A Applied Science & Manufacturing, 2007, 38(3): 651-665.
[5] JA Nairn, P Zoller. Matrix solidification and the resulting residual thermal stresses in composites[J]. Journal of Materials Science, 1985, 20 (1): 355-367.
[6] JP Favre. Residual thermal stresses in fiber reinforced composite materials-a review[J]. Journal of the Mechanical Behavior of Materials, 1988, 1(1-4): 37-53.
[7] Y Youssef, J Denault. Thermoformed glass fiber reinforced polypropylene: microstructure, mechanical properties and residual stresses[J]. Polymer Composites, 1998, 19(3): 301-309.
[8] KS Kim, HT Hahn, RB Croman. The effect of cooling rate on residual stresses in a thermoplastic composite[J]. Journal of Composites Technology and Research, 1989, 11(2): 47-52.
[9] H Zhang, PM Anderson, GS Daehn. Analysis of thermal induced stress and strain in continuous fiber-reinforced stress and strain in continuous fiber-reinforced composites[J]. Metallurgical and materials Transactions A, 1994, 25(A): 415-425.
[10] MF Talbott, GS Springer, LA Berglund. The effects of crystallinity on the mechanical properties of PEEK polymer and graphite fiber reinforced PEEK[J]. Journal of Composite Materials, 1987, 21(11): 1056-1081.
[11] EM Asloun, M Nardin, J Schultz. Stress transfer in single-fiber composites: effect of adhesion, elastic modulus of fiber and matrix, and polymer chain mobility[J]. Journal of Materials Science, 1989, 24(24): 1835-1844.
[12] A Pawlak, P Zinck, A Galeski, et al. Photoelastic studies of residual stresses around fillers embedded in an epoxy matrix[J]. Macromolecular Symposia, 2001, 169(1): 197-210.
[13] AS Nielsen, R Pyrz. A novel approach to measure local strains in polymer matrix systems using polarized Raman microscopy[J]. Composites Science and Technology, 2002, 62(16): 2219-2227.
[14] SK Wang, Z Mei, DDL Chung. Interlaminar damage in carbon fiber polymer-matrix composites studied by electrical resistance measurement[J]. International Journal of Adhesion and Adhesives, 2001, 21(6): 465-471.
[15] G Zhou, LM Sim. Damage detection and assessment in fiber rein-forced composite structures with embedded fiber optic sensors-Review[J]. Smart Materials and Structures, 2002, 11(6): 925-939.
[16] RH Fenn, AM Jones, GM Wells. X-ray diffraction investigation of triaxial residual stresses in composite materials[J]. Journal of Composite Materials, 1993, 27(14): 1338-1351.
[17] BP Arjyal, C Galiotis, SL Ogin, et al. Residual strain and Young′s modulus determination in cross-ply composites using an embedded aramid fiber strain sensor[J]. Composites Part A Applied Science & Manufacturing, 1998, 29(11): 1363-1369.
[18] M Eijpe, PC Powell. Residual stress evaluation in composites using a modified layer removal method[J]. Composite Structures, 1997, 37(3-4): 335-342.
[19] A Makino, D Nelson. Residual stress determination by single-axis holographic interferometry and hole drilling-Part I: Theory[J]. Experimental Mechanics, 1994, 34(1): 66-78.