摘要
Experimental and numerical works were performed to investigate the mechanical behavior of double scarf-repaired carbon fiber reinforced polymer(CFRP) composite laminates under tensile loading. The load capacity and damage mode of two different thicknesses double scarf-repaired composites were experimentally studied. The results indicate that for double scarf-repaired composites with different thicknesses, the failure strengths are similar and the dominated failure mode is cohesive failure of the adhesive, accompanied by partial 90° matrix crack of composites. A finite element model was established to predict the failure strength and the damage evolution, in which continuum damage model and cohesive zone model were used to describe the composite and adhesive damage respectively. The numerical results show good agreement with the test results and indicate that the matrix crack of the composites initiates prior to the adhesive failure. Based on the validated model, the influences of overlap patch, location of inner tip and adhesive properties were analyzed.
投稿的翻译标题 | Tensile behavior and effect factors of double scarf-repaired composite laminates |
---|---|
源语言 | 繁体中文 |
页(从-至) | 1421-1427 |
页数 | 7 |
期刊 | Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica |
卷 | 36 |
期 | 6 |
DOI | |
出版状态 | 已出版 - 1 6月 2019 |
关键词
- Adhesive properties
- Double scarf repair
- Failure modes
- Location of inner tip
- Overlap patch