The Impact and Compression‐After‐Impact Behaviour of CFRP After Double Impacts in Different Locations
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| Natura: | Artículo Open Access |
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Wiley
2025
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| _version_ | 1867008855854022656 |
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| author | R. A. Brooks J. Liu A. M. Joesbury L. T. Harper H. Liu B. R. K. Blackman A. J. Kinloch J. P. Dear |
| author_facet | R. A. Brooks J. Liu A. M. Joesbury L. T. Harper H. Liu B. R. K. Blackman A. J. Kinloch J. P. Dear R. A. Brooks J. Liu A. M. Joesbury L. T. Harper H. Liu B. R. K. Blackman A. J. Kinloch J. P. Dear |
| collection | Wiley Open Access |
| contents | The Impact and Compression‐After‐Impact Behaviour of CFRP After Double Impacts in Different Locations R. A. Brooks J. Liu A. M. Joesbury L. T. Harper H. Liu B. R. K. Blackman A. J. Kinloch J. P. Dear Strain ABSTRACTThe present paper investigates the low‐velocity impact behaviour and the compression‐after‐impact (CAI) behaviour of carbon‐fibre reinforced‐plastic (CFRP) composite panels after two impacts in different locations on a test coupon. The effect of changing the separation distance between the two impacts, as well as changing the impact energy, is examined by a comparison of C‐scan damage maps and the CAI load versus deflection behaviour. It is shown that impacts that are close to one another lead to a linking of the delamination footprints at each impact site. Further, that increasing the impact separation distance, for the same impact energy, leads to an increase in the area of the initial delamination damage footprint, until a separation distance is reached when two completely separate damage zones are formed. As to be expected, the delamination damage area increases, and the residual compressive strength after impact (termed the ‘CAI strength’) decreases with an increasing impact energy. An interesting observation is that the residual compressive strength generally increases with increasing impact separation distance. 10.1111/str.70006 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1111/str.70006 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_str_70006 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | The Impact and Compression‐After‐Impact Behaviour of CFRP After Double Impacts in Different Locations R. A. Brooks J. Liu A. M. Joesbury L. T. Harper H. Liu B. R. K. Blackman A. J. Kinloch J. P. Dear Strain The Impact and Compression‐After‐Impact Behaviour of CFRP After Double Impacts in Different Locations R. A. Brooks J. Liu A. M. Joesbury L. T. Harper H. Liu B. R. K. Blackman A. J. Kinloch J. P. Dear Strain ABSTRACTThe present paper investigates the low‐velocity impact behaviour and the compression‐after‐impact (CAI) behaviour of carbon‐fibre reinforced‐plastic (CFRP) composite panels after two impacts in different locations on a test coupon. The effect of changing the separation distance between the two impacts, as well as changing the impact energy, is examined by a comparison of C‐scan damage maps and the CAI load versus deflection behaviour. It is shown that impacts that are close to one another lead to a linking of the delamination footprints at each impact site. Further, that increasing the impact separation distance, for the same impact energy, leads to an increase in the area of the initial delamination damage footprint, until a separation distance is reached when two completely separate damage zones are formed. As to be expected, the delamination damage area increases, and the residual compressive strength after impact (termed the ‘CAI strength’) decreases with an increasing impact energy. An interesting observation is that the residual compressive strength generally increases with increasing impact separation distance. 10.1111/str.70006 http://creativecommons.org/licenses/by/4.0/ |
| title | The Impact and Compression‐After‐Impact Behaviour of CFRP After Double Impacts in Different Locations |
| topic | Strain |
| url | https://onlinelibrary.wiley.com/doi/10.1111/str.70006 |