Review of delamination predictive methods for low speed impact of composite laminates

Aim of this work is to determine experimentally some important mechanical characteristics of RTM hemp plain weave fabric/epoxy laminates. Equipment and test methods are described and critically discussed. Main subjects of this work are: RTM process improvement, preliminary tensile and f1exural tests and impact performance. The latter is analyzed with particular attention, also comparing data with other experimental results. Attention is devoted both to the process, which strongly influences the mechanical performance of natural long fibres reinforced composites and to the low-velocity impact behaviour. This is a very important requirement for future aeronautical applications, in that composite structures should retain sufficient residual compression properties (CAI: Compression After Impact) after a Barely Visible Impact Damage (B.V.I.D).

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“…Variable service loads can continuously grow the damage area, possibly resulting in complete structural collapse of the damaged part. 4 …”

Section: Situation In Aeronautics and Requirementsmentioning

confidence: 99%

Impact Load Behaviour of Resin Transfer Moulding (RTM) Hemp Fibre Composite Laminates

Scarponi¹,

Pizzinelli²,

Sánchez-Sáez³

et al. 2009

J Biobased Mat Bioenergy

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“…For slightly curved specimens, it has been shown that the damage which occurs at the interface has to be taken into account to accurately predict the residual tensile strength of pre-impacted specimens. This possible degradation of interfaces could be conducted using cohesive elements (Elder et al, 2004, Pinho et al, 2006. These elements are implemented between two volumic elements representing two layers of different orientations.…”

Section: Resultsmentioning

confidence: 99%

On the Prediction of the Residual Behaviour of Impacted Composite Curved Panels

Viot¹,

Ballère²,

Jean-Luc³

2011

Nanocomposites With Unique Properties and Applications in Medicine and Industry

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“…In the prediction of initiation of delamination, strength analysis approach is usually used, and for the analysis of propagation, fracture mechanics approach is mainly employed, provided that initial delamination exists [26]. Strength analysis is associated with stress-based consideration and fracture mechanics with energy-based consideration [58]. Both approaches are complementary for the purposes of this study.…”

Section: Initiation and Propagationmentioning

confidence: 99%

“…In composite laminates, the major axial and bending loads are supported by the bres and the shear loads by the matrix [58]. Basically, once a structural component is delaminated, the component loses interlaminar shear carrying capability [59].…”

Section: Delaminationmentioning

confidence: 99%

Identification of the local stiffness reduction of a damaged composite plate using the virtual fields method

Kim

Pierron

Wisnom

et al. 2007

Composites Part A: Applied Science and Manufacturing

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For the purpose of returning to Earth And I do not call one a Brahmana on account of his birth or of his origin from (a particular) mother; (but) the one who is possessed of nothing and seizes upon nothing, him I call a Brahmana.The man who is free from anger, endowed with (holy) works, virtuous, without desire, subdued, and wearing the last body (antimasarira), him I call a Brahmana.The man who is not hostile amongst the hostile, who is peaceful amongst the violent, not seizing (upon anything) amongst those that seize (upon everything), him I call a Brahmana.Whosoever has passed over this quagmire dicult to pass, (who has passed over) revolution (samsara) and folly, who has crossed over, who has reached the other shore, who is meditative, free from desire and doubt, calm without seizing (upon anything), him I call a Brahmana. Sutta Nipata, Book 3, Chapter 9 AcknowledgementsThis thesis is the record of my four years' exploration into a new world and myself.

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Review of delamination predictive methods for low speed impact of composite laminates

Cited by 122 publications

References 11 publications

Impact Load Behaviour of Resin Transfer Moulding (RTM) Hemp Fibre Composite Laminates

Impact Load Behaviour of Resin Transfer Moulding (RTM) Hemp Fibre Composite Laminates

On the Prediction of the Residual Behaviour of Impacted Composite Curved Panels

Identification of the local stiffness reduction of a damaged composite plate using the virtual fields method

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