Abstract
This work presents a new procedure to deal with the delamination problem found in laminated composites, based in a continuum mechanics formulation. The procedure proposed obtains the composite constitutive performance with the Serial/Parallel mixing theory, developed by F. Rastellini. This theory characterizes composite materials by coupling the constitutive behaviour of the composite components, imposing an iso–strain relation among the components in the fibre (or parallel) direction and an iso–stress relation in the remaining directions (serial directions). The proposed procedure also uses a damage formulation to characterize the constitutive behaviour of matrix component in order to obtain the stress–strain performance of this material.
With these two formulations, the delamination phenomenon is characterized naturally by the numerical simulation, being unnecessary the definition of special elements or computationally expensive techniques like the definition of contact elements or mesh separation. Matrix failure, as a result of the stress state found in it, leads to a reduction of the stiffness and strength capacity of the composite in its serial direction. This reduction provides a composite performance equivalent to what is found in a delaminated material.
To prove the ability of the formulation proposed to solve delamination problems, the End Notch Failure test is numerically simulated and the results obtained are compared with experimental ones. The agreement found in the results with both simulations, numerical and experimental, validate the proposed methodology to solve the delamination problem.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
1. Balzani C, Wagner W (2007) An interface element for the simulation of delamination in unidirectional fiber-reinforced composite laminates. Eng Fract Mech, doi: 10.1016/j. engfracmech.2007.03.013
Borg R, Nilsson L, Simonsson K (2002) Modeling of delamination using a discretized cohesive zone and damage formulation. Compos Sci Technol 62:1299-1314
Borg R, Nilsson L, Simonsson K (2004) Simulating DCB, ENF and MMB experiments using shell elements and cohesive zone model. Compos Sci Technol 64:269-278
4. Camanho PP, D ávila CG (2002) Mixed-mode decohesion finite elements for the simulation of delamination in composite materials. Technical Report TM-2002-211737, NASA
5. Corbella B, Vicens J, Costa J (2004) Informe de los resultados de los ensayos de propagaci ón de grieta en modo II del “round robin test” del proyecto grincomp (mat2003-09768-c03). Technical Report 2004-CYT-01-IT01, CIMEP
Jansson N, Larsson R (2001) A damage model for simulation of mixed-mode delamination growth. Compos Struct 53:409-417
Kachanov L (1986) Introduction to continuum damage mechanics, mechanics of elastic stability. Martinus Nijhoff, Dordrecht, The Netherlands
Krueger P (2004) Virtual crack closure technique: history, approach and applications. Appl Mech Rev 57:109-143
Oliver J, Cervera M, Oller S, Lubliner J (1990) Isotropic damage models and smeared crack analysis of concrete. In: Mang H, Bic áni ć N (eds) Second internaltional conference on computer aided analysis and design of concrete structures, Zell am See, Austria, 945-958
Oller S (2001) Fractura mec ánica. Un enfoque global. Centro Internacional de M étodos Num éricos en Ingeniería, Barcelona, Spain
Oller S (2002) Din ámica no-lineal. Centro Internacional de M étodos Num éricos en Ingeniería, Barcelona, Spain
Pinho ST, Iannucci L, Robinson P (2006) Formulation and implementation of decohesion elements in an explicit finite element code. Compos Part A: Appl Sci Manuf 37:778-789
13. Rastellini F, Oller S, Salomon O, O ñate E (2007) Composite materials non-linear modelling for long fibre reinforced laminates: continuum basis, computational aspects and validations. Comput Struct, doi:10.1016/j.compstruc.2007.04.009
Salomon O, Rastellini F, Oller S, O ñate E (2005) Fatigue prediction for composite materials and structures. In: NATO Research and Technology Organisation (RTO) (eds) Air Vehicle Technology: AVT-121. Symposium on the evaluation, control and prevention of high cycle fatigue, Granada, Spain
Turon A, Camanho PP, Costa J, D ávila CG (2006) A damage model for the simulation of delamination in advanced composites under variable-mode loading. Mech Mater 38:1072-1089
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2008 Springer Science + Business Media B.V
About this paper
Cite this paper
Martínez, X., Oller, S., Barbero, E. (2008). Study of Delamination in Composites by Using the Serial/Parallel Mixing Theory and a Damage Formulation. In: Mechanical Response of Composites. Computational Methods in Applied Sciences, vol 10. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8584-0_6
Download citation
DOI: https://doi.org/10.1007/978-1-4020-8584-0_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-8583-3
Online ISBN: 978-1-4020-8584-0
eBook Packages: EngineeringEngineering (R0)