EDGE DELAMINATION OF COMPOSITE LAMINATES UNDER LOW CYCLE FATIGUE
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1999
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| _version_ | 1866901470317641728 |
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| author | Nobuhide Uda Kazuo Kunoo |
| author_facet | Nobuhide Uda Kazuo Kunoo |
| contents | The onset and growth rate of free-edge delamination in composite laminates [+30n/-30n/90n]S n =1 2 under cyclic loading are quantitatively examined. A critical strain for the onset of the free-edge delamination is predicted using a strain energy release rate. The predicted critical strains are in very good agreement with the experimental results. A linear relation between delamination size and stiffness loss is shown experimentally and analytically. The growth of the delamination in the [+30n/-30n/90n]S laminates is characterized assuming the delaminations grow in both -30/90 interfaces. The growth rate of the delamination is evaluated with an alternative parameter, stiffness-loss rate during fatigue. The stiffness-loss rate of the delamination is expressed by a power law for the [+30n/-30n/90n]S laminates. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15419342 |
| institution | Zenodo |
| language | |
| publishDate | 1999 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | EDGE DELAMINATION OF COMPOSITE LAMINATES UNDER LOW CYCLE FATIGUE Nobuhide Uda Kazuo Kunoo The onset and growth rate of free-edge delamination in composite laminates [+30n/-30n/90n]S n =1 2 under cyclic loading are quantitatively examined. A critical strain for the onset of the free-edge delamination is predicted using a strain energy release rate. The predicted critical strains are in very good agreement with the experimental results. A linear relation between delamination size and stiffness loss is shown experimentally and analytically. The growth of the delamination in the [+30n/-30n/90n]S laminates is characterized assuming the delaminations grow in both -30/90 interfaces. The growth rate of the delamination is evaluated with an alternative parameter, stiffness-loss rate during fatigue. The stiffness-loss rate of the delamination is expressed by a power law for the [+30n/-30n/90n]S laminates. |
| title | EDGE DELAMINATION OF COMPOSITE LAMINATES UNDER LOW CYCLE FATIGUE |
| url | https://doi.org/10.5281/zenodo.15419342 |