NAME

陈军

Paper Publications

复合材料孔隙形貌特征对超声波散射衰减影响分析
  • Hits:
  • Indexed by:

    期刊论文

  • First Author:

    张翔

  • Correspondence Author:

    Lin, L.; Dalian University of Technology, Dalian, Liaoning, 116024, China

  • Co-author:

    陈军,林莉,李喜孟

  • Date of Publication:

    2010-01-01

  • Journal:

    中国机械工程

  • Included Journals:

    Scopus、PKU、ISTIC、CSCD

  • Document Type:

    J

  • Volume:

    21

  • Issue:

    14

  • Page Number:

    1735-1741

  • Key Words:

    复合材料; 孔隙形貌; 超声波衰减系数; 随机孔隙模型

  • Abstract:

    采用有限差分正演模拟方法,针对基于统计学原理建立的复合材料二维随机孔隙模型,在保持孔隙率不变的前提下,计算了孔隙形状、取向及数量等因素单一变化及
       孔隙形貌特征多因素随机变化下的超声波衰减系数,并以0.03%~4.62%孔隙率的碳纤维复合材料为例,比较了超声波衰减系数的理论计算结果和实验测试
       结果. 研究表明,孔隙形状(宽长比)、取向和数量均对超声波衰减系数有影响,且孔隙形貌的随机性会引起超声波衰减系数的波动.

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