A 3D Progressive Failure Model for predicting pseudo-ductility in hybrid unidirectional composite materials under fibre tensile loading
| Autor: | Jose Manuel Guerrero, Josep Costa Balanzat, AMADE AMADE, Albert Turon, Joan Andreu Mayugo |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Composite number Stiffness 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Finite element method 0104 chemical sciences Mechanics of Materials Ultimate tensile strength Ceramics and Composites medicine Representative elementary volume medicine.symptom Tensile response Composite material 0210 nano-technology Stress concentration |
| Zdroj: | Composites Part A: Applied Science and Manufacturing. 107:579-591 |
| ISSN: | 1359-835X |
| DOI: | 10.1016/j.compositesa.2018.02.005 |
| Popis: | This paper presents a three-dimensional Progressive Failure Model based on the chain of bundles able to represent the stiffness loss in unidirectional composite materials loaded in the fibre direction. A representative volume element with a random distribution of fibres with their own radius is considered. Complete stress distributions around fibre breaks are obtained by associating a damage variable to the loss of stress transfer capability along the ineffective length and applying local stress concentrations. The model has been validated by comparing it against the literature results and exhibits good agreement with hybrids and non-hybrid composites. The aim of this model is to simulate the tensile response of unidirectional composite systems dominated by fibre fragmentation mechanisms using a very reduced computational effort, even for larger representative volume elements, compared to micro-mechanical finite element models. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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