NDLI: Homogenization of Diffuse Delamination in Composite Laminates

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Homogenization of Diffuse Delamination in Composite Laminates

Content Provider	Semantic Scholar
Author	Jalalvand, Meisam Hosseini-Toudeshky, H. Mohammadi, Bijan
Copyright Year	2014
Abstract	Diffuse delamination initiating from the tips of transverse cracks is usually the secondary damage mode when a composite laminate experience tensile loading. Transverse cracking has been widely investigated in analytical methods and recently, new “mechanism-based” constitutive laws were proposed for considering the cracked layer as a continuum medium. Delamination induced by matrix cracking was studied analytically, however, a proper homogenization way has not been proposed yet. In this paper, a modification to an available cohesive constitutive law is proposed to be capable of considering the effect of diffuse delamination without the necessity of consideration of an actual discontinuity between the layers. The proposed constitutive law is then compared with its equivalent models containing interlaminar discontinuity in terms of surrounding plies elasticity and distance between repetitive interlaminar cracks. It is shown that the obtained results are in good agreement with different elasticity of surrounding layers. Then the proposed modification is used in Double Cantilever Beam (DCB) specimen. Obtained results in this case are coincident with the results of an equivalent model in which diffuse discontinuity is assumed at the interface.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://research-information.bristol.ac.uk/files/19752446/Jalalvand_Hosseini_Mohammadi_Homogenization_of_diffuse_delamination_adding_shear_behaviour_OA.pdf
Language	English
Access Restriction	Open
Subject Keyword	Arterial Switch Operation Assumed Biological specimen CDISC SEND Biospecimens Terminology Delamination - medical device material degradation Diffuse reflection Elasticity (cloud computing) Elasticity (data store) Laminate Device Component Password cracking Ply (game theory) Reflections of signals on conducting lines Transverse wave Triune continuum paradigm anatomical layer delamination process
Content Type	Text
Resource Type	Article

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