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Title
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Prediction of the Ultimate Strength of Notched and Unnotched IM7/977-3 Laminated Composites Using a Micromechanics Approach
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Sub-Title |
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Subject |
Multiscale simulation; micromechanics of failure; ultimate strength; IM7/977-3; compositelaminates
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Sub-Subject |
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Author |
Manzar Masud, Moosa SM Al Kharusi, Muhammad Umair
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Publish Year |
2021 |
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Diss#. |
https://doi.org/10.3390/polym13203491 |
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Pages |
3491-3512 |
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Text Language |
English |
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Accession |
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Library Section |
Research Article |
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Abstract |
This paper proposes a multi-scale analysis technique based on the micromechanics of failure(MMF) to predict and investigate the damage progression and ultimate strength at failure of laminatedcomposites. A lamina’s representative volume element (RVE) is developed to predict and calculateconstituent stresses. Damages that occurred in the constituents are calculated using separate failurecriteria for both fiber and matrix. Subsequently, the volume-based damage homogenization technique is utilized to prevent the localization of damage throughout the total matrix zone. The proposed multiscale analysis procedure is then used to investigate the notched and unnotched behavior of three multi-directional composite layups, [30, 60, 90, 60, 30]2S, [0, 45, 90, 45]2S, and [60, 0, 60]3S, subjected to static tension and compression loading. The specimen is fabricated from unidirectionally reinforced composite (IM7/977-3). The prediction of ultimate strength at failure and equivalent stiffne
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