玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (6): 16-21.

• 基础研究 • 上一篇    下一篇

含不同类型分层缺陷层合板的屈曲失效性能

赵晨熙1,2, 朱和明1,2, 张文兴3   

  1. 1.页岩油气富集机理与有效开发国家重点实验室,北京100101;
    2.中国石化石油工程技术研究院,北京100101;
    3.内蒙古科技大学机械工程学院,包头014010
  • 收稿日期:2018-02-11 出版日期:2018-06-28 发布日期:2018-06-28
  • 作者简介:赵晨熙(1984-),男,博士,副研究员,主要从事石油井下工具研发、新材料在井下工具中的应用方面的研究,zhaocx.sripe@sinopec.com。
  • 基金资助:
    国家科技重大专项“海上复杂地层安全快速钻完井关键技术”(2016ZX05033004-002)

BUCKLING PROPERTIES OF COMPOSITE LAMINATES WITHDIFFERENT DELAMINATION DEFECTS

ZHAO Chen-xi1,2, ZHU He-ming1,2, ZHANG Wen-xing3   

  1. 1.State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing100101, China;
    2.SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, China;
    3.School of Mechanical Engineering, University of Science and Technology of The Inner Mongol, Baotou 014010, China
  • Received:2018-02-11 Online:2018-06-28 Published:2018-06-28

摘要: 对含分层缺陷的层合板材料在压缩载荷下进行分层屈曲试验,研究中央分层及边缘分层两种缺陷下的屈曲失效模式,同时结合厚度、分层深度、位置等因素,对两种分层类型进行综合对比分析。结合有限元方法,运用界面元研究了层间的分层缺陷的损伤行为,有限元模拟得到了与实验吻合度较好的数值结果,并进一步研究了分层尺寸及试样尺寸效应的影响。

关键词: 边缘分层, 中央分层, 屈曲模式, 屈曲后强度

Abstract: Laminates containing delamination were stratified buckling under compression test to study failure modes. In this paper, the buckling failure of both center and edge delamination were tested. Combined with the defected layer position, symmetrical and unsymmetrical delaminated laminate of the two types were compared. On the other hand, the damage behavior of interlayer delamination defects with the cohesive element, and a better agreement with the experimental value of the results were obtained. Further study was done to investigate the effects of delamination size and sample size.

Key words: edge delamination, center delamination, buckling mode, post-buckling strength

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