厚截面层板复合材料三维本构关系表征技术应用展望

玻璃钢/复合材料 ›› 2020, Vol. 0 ›› Issue (1): 120-126.

• 综述 • 上一篇

厚截面层板复合材料三维本构关系表征技术应用展望

谌广昌^1,2, 王雅娜³, 陈普会²

1.南京航空航天大学机械结构力学及控制国家重点实验室,南京 210016;
2.中国直升机设计研究所,景德镇 333000;
3.中国航发北京航空材料研究院,北京 100095

收稿日期:2019-03-26 出版日期:2020-01-28 发布日期:2020-01-28
作者简介:谌广昌(1983-),男,博士生在读,高级工程师,主要从事航空复合材料应用与验证方面的研究,153491289@qq.com。

PROSPECT FOR THE APPLICATION OF THREE-DIMENSIONAL CONSTITUTIVE CHARACTERIZATION TECHNIQUE FOR THICK-SECTION LAMINATED COMPOSITES

CHEN Guang-chang^1,2, WANG Ya-na³, CHEN Pu-hui ¹

1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2.China Helicopter Research and Development Institute, Jingdezhen 333000, China;
3.CAEE Beijing Institute of Aeronautical Materials, Beijing 100095, China

Received:2019-03-26 Online:2020-01-28 Published:2020-01-28

摘要/Abstract

摘要： 厚截面层板复合材料三维力学性能试验尚未有统一的标准方法。精准的三维力学性能,尤其是完整的应力-应变关系,对于理解复合材料的复杂变形和失效机制十分关键,特别是在航空结构设计中扮演关键角色的高强玻璃纤维和碳纤维增强聚合物基复合材料。本文介绍了国外在层板复合材料三维本构关系表征技术方面的最新进展,论述了以数字图像相关全场变形测量辅助短梁剪切和小矩形板扭转试验,评估复合材料三个方向模量和强度,以及三个主材料面非线性剪切应力-应变曲线的新方法,总结了国内在厚截面层板复合材料三维本构关系表征方面的技术现状及其与国外差距。综述表明,数字图像相关测试中应力-应变场的对应关系、基于数字图像相关应变测量的材料本构关系反演是复合材料三维力学性能准确测试需要突破的关键技术点。

关键词: 厚截面, 层板, 复合材料, 三维, 本构关系, 表征

Abstract: There is no unified standard test method for the three-dimensional mechanical properties of the thick-section laminated composite materials. Accurate and efficient characterization of the three-dimensional mechanical properties of composite materials, especially the complete stress-strain curve, is critical for understanding the complex deformation and failure mechanisms of composites, especially for the glass-fiber and carbon-fiber reinforced polymer matrix composites which play a critical role in aviation structures. In this paper, the latest progress in characterization of three-dimensional constitutive relations of laminated composites abroad is introduced, and a new method of assessing modulus and strength in three directions and non-linear shear stress-strain curves in three main material planes of composites, which is based on the short beam shear and small rectangular plate torsion specimens and full-field deformation obtained with the digital image correlation method. In addition, the state-of-the-art status of technology in three-dimensional constitutive relationship characterization of thick cross-section laminated composites in China, and caps between the civil and western are summarized as well. The overview shows that the correspondences of stress and strain filed in digital image correlation measurement and the inverse of the material constitutive properties based on the digital image correlation strain measurements are the key techniques needed to break through in order to obtain accurate measurement of three-dimensional mechanical properties of composites.

Key words: thick section, laminate, composite, three-dimensional, constitutive properties, characterization

中图分类号:

TB332

谌广昌, 王雅娜, 陈普会. 厚截面层板复合材料三维本构关系表征技术应用展望[J]. 玻璃钢/复合材料, 2020, 0(1): 120-126.

CHEN Guang-chang, WANG Ya-na, CHEN Pu-hui. PROSPECT FOR THE APPLICATION OF THREE-DIMENSIONAL CONSTITUTIVE CHARACTERIZATION TECHNIQUE FOR THICK-SECTION LAMINATED COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2020, 0(1): 120-126.

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厚截面层板复合材料三维本构关系表征技术应用展望

PROSPECT FOR THE APPLICATION OF THREE-DIMENSIONAL CONSTITUTIVE CHARACTERIZATION TECHNIQUE FOR THICK-SECTION LAMINATED COMPOSITES

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