扩展有限元方法与内聚力模型耦合下斜接修补复合材料的胶层损伤和缺陷

Wei Feng, Fei Xu, Hao You, Menglin Li

科研成果: 期刊稿件文章同行评审

7 引用 (Scopus)

摘要

The extended finite element method(XFEM) and cohesive zone model(CZM) were combined to investigate the adhesive layer of scarf-repaired laminates, which could describe the debonding between composite and adhesive layer and the crack propagation in the adhesive at the same time. The numerical strength shows good agreement with test results. Both the interface defect and inner defect were taken into consideration, the influences of defect length and defect location were analyzed. The results indicate that the structure with inner defect is more dangerous than that with interface defect under the same condition. The structure strength which is influenced by both the defect length and the ply orientation near the defect tip decreases with the increased defect length. And the decrease rate is larger than the increase rate of defect length. When the defect location changes, the structure strength is mainly associated with the average shear stress level of adhesive layer at corresponding region. At last, parameter study was performed to investigate the influence of the interface shear strength.

投稿的翻译标题Adhesive damage and defect analysis of scarf-repaired composite by combining extended finite element method and cohesive zone model
源语言繁体中文
页(从-至)1354-1360
页数7
期刊Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
35
5
DOI
出版状态已出版 - 1 5月 2018

关键词

  • Adhesive layer defect
  • Defect length
  • Defect location
  • Extended finite element method(XFEM)
  • Scarf repair

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