Blind benchmarking of seven longitudinal tensile failure models for two virtual unidirectional composites
| Autor: | A.B. de Morais, Christian Breite, Josep Costa, Larissa Gorbatikh, M. Hajikazemi, Francisco Mesquita, Arsen Melnikov, F. Otero, J.A. Mayugo, Soraia Pimenta, J.M. Guerrero, Rodrigo P. Tavares, L.N. McCartney, Pedro P. Camanho, W. Van Paepegem, Yentl Swolfs, Albert Turon, S.V. Lomov |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria Nàutiques, Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures en l'Enginyeria |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science PREDICTION Failure strain Materials Science Longitudinal tensile failure Mechanical properties 02 engineering and technology 010402 general chemistry 01 natural sciences Stress (mechanics) Computational mechanics Ultimate tensile strength medicine COMPUTED-TOMOGRAPHY Composite material Stress concentration Stress concentrations Science & Technology DAMAGE ACCUMULATION Materials compostos General Engineering Stiffness Benchmarking Composite materials 021001 nanoscience & nanotechnology Enginyeria dels materials::Materials compostos [Àrees temàtiques de la UPC] 0104 chemical sciences STRENGTH MODELS STRESS REDISTRIBUTION Materials Science Composites Ceramics and Composites Benchmark (computing) HIERARCHICAL SCALING LAW BROKEN FIBERS Strength medicine.symptom FIBROUS MATERIALS FRAGMENTATION 0210 nano-technology MATRIX |
| Zdroj: | Composites Science and Technology UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | Many models for prediction of longitudinal tensile failure of unidirectional (UD) composites have been developed in the last decades. These models require significant assumptions and simplifications, but their consequences for the predictions are often not clearly understood. This paper therefore presents a blind benchmark of seven different models applied to two virtual materials. Reliably capturing the localisation of stress concentrations was vital in predicting the effect of matrix stiffness and strength on composite failure strain and strength as well as fibre break and cluster development. Although the models have different assumptions regarding stress redistributions around fibre breaks, the 2-plet (clusters of two fibre breaks) development was similar. Distance-based criteria were shown to be inadequate for monitoring cluster development. The discussions provide detailed insight into how the model assumptions are linked to the differences in the predictions. European Union’s Horizon 2020 research and innovation programme published |
| Databáze: | OpenAIRE |
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