A Mode I cohesive law characterization procedure for through-the-thickness crack propagation in composite laminates
| Autor: | Frank A. Leone, Tein-Min Tan, Andrew C. Bergan, Jonathan Awerbuch, Carlos G. Davila |
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| Rok vydání: | 2016 |
| Předmět: |
Carbon fiber reinforced polymer
Materials science Mechanical Engineering Fracture mechanics 02 engineering and technology Composite laminates 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Displacement (vector) Characterization (materials science) 020303 mechanical engineering & transports Fracture toughness 0203 mechanical engineering Mechanics of Materials Law Ceramics and Composites Fracture (geology) Composite material 0210 nano-technology Compact tension specimen |
| Zdroj: | Composites Part B: Engineering. 94:338-349 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2016.03.071 |
| Popis: | A method is proposed for the experimental characterization of through-the-thickness damage propagation in multidirectional carbon fiber reinforced polymer laminates. The compact tension specimen configuration is used to propagate damage stably while load and full-field displacements are recorded. These measurements are used to compute the fracture toughness and crack opening displacement from which a trilinear cohesive law is characterized. The proposed method provides a means to extrapolate to steady-state such that the cohesive law is characterized completely and accurately, even when the test specimens used for the characterization are too small to reach steady-state crack propagation. The characterized cohesive law is demonstrated through a prediction of the structural response and fracture of a geometrically-scaled test specimen. |
| Databáze: | OpenAIRE |
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