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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azevedo, Nuno Monteiro |
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Donadon, Maurício V.
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Topics
Publications (9/9 displayed)
- 2019Translaminar fracture toughness and fatigue crack growth characterization of carbon-epoxy plain weave laminatescitations
- 2019Experimental Characterization of Mode I Interlaminar Fracture Toughness in Low-Melt Paek Thermoplastic Composite Material
- 2019Hygrothermal effects on mode II interlaminar fracture toughness of co-bonded and secondary bonded composites jointscitations
- 2018Strain rate effects on the intralaminar fracture toughness of composite laminates subjected to compressive loadcitations
- 2018An experimental investigation of trailing-edge noise reduction due to elasticity
- 2018Strain rate effects on the intralaminar fracture toughness of composite laminates subjected to tensile loadcitations
- 2017Aeroelastic behavior of stiffened composite laminated panel with embedded SMA wire using the hierarchical Rayleigh–Ritz methodcitations
- 2017Assembly of semi-analytical models to address linear buckling and vibration of stiffened composite panels with debonding defectcitations
- 2016Flutter of stiffened composite panels considering the stiffener's base as a structural elementcitations
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article
Translaminar fracture toughness and fatigue crack growth characterization of carbon-epoxy plain weave laminates
Abstract
An experimental investigation of mode-I translaminar fracture toughness and fatigue crack growth behavior of a carbon fiber-epoxy plain weave laminate manufactured by resin infusion under flexible tooling (RIFT) is presented in this article. Pre-cracked compact tension (CT) specimens were used to perform both quasi-static and fatigue tests. Different data reduction techniques for fracture toughness calculation were used and compared with each other. The ASTM E399 test method was modified to account for the material orthotropy and specimen geometry effects using a correction function based on a numerical evaluation of the strain energy release rate. The proposed modification shows good agreement against other experimental methods found in the literature and its application was validated for fatigue tests. Fatigue testing shows that failure in undesired modes is likely to occur prior to translaminar fracture, which was attributed to a higher tensile fatigue threshold than compression or shear fatigue threshold presented by the composite in analysis. Increasing the specimens’ initial notch length was a solution for avoiding these types of failure. The experimental results were compiled in the form of a Paris curve, and their particularities were discussed. A fractographic analysis was carried out to define damage patterns and its evolution process in both types of tests. POLYM. COMPOS., 40:3791–3804, 2019. © 2019 Society of Plastics Engineers