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Title:
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A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates
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Author:
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Pérez Martínez, Marco Antonio; Gil Espert, Lluís; Oller Martínez, Sergio Horacio; Felippa, Carlos
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria; Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. LITEM - Laboratori per a la Innovació Tecnològica d'Estructures i Materials; Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures en l'Enginyeria |
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Abstract:
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This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum approach is used to estimate the map of induced internal damage by considering the micro-structural interaction between the composite constituents and modifying their constitutive performance through a continuum damage formulation. An eigenvalue analysis is then done to determine the modal response of impacted laminates. The validity of the modeling approach to successfully reproduce the vibration response of impacted coupons is assessed through a comparison with an experimental test series conducted on a set of 48 CFRP laminated coupons. The results confirm the ability of the described approach in comparison to competing ones used to reproduce the experimentally observed behaviour. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos
-Àrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials
-Composite materials
-Micromechanics
-Impact damage
-Micro-mechanical approach
-Modal analysis
-Materials compostos
-Micromecànica |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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