Influence of multi-impacts on GFRP composites laminates

Amaro, Ana M.; Reis, P.N.B.; Moura, M.F.S.F. de; Neto, Maria Augusta

doi:10.1016/j.compositesb.2013.03.041

Cited by 58 publications

(23 citation statements)

References 28 publications

(37 reference statements)

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“…As discussed previously, its severity is highly dependent on the distance and this trend is also reproducible along the multi-impacts, as consequence of damage accumulation [39]. In this context, the impact bending stiffness (IBS) is an important property to assess the damage progression in composite laminates subjected to multi-impacts [40], where, according to Amaro et al [41], the damage can be directly correlated with the absorbed energy and inversely correlated with the impact bending stiffness.…”

Section: Figurementioning

confidence: 99%

“…This means that the damage occurs immediately after the first impact and its evolution is very fast after that. On the other hand, for the control samples and for the distance of 20 mm, the data can be fitted by a polynomial of order three, where the different stages observed are consequence of damage accumulation [39]. Relatively to the control samples, for example, the elastic recuperation decreases around 18.8% during the first 25% of the total life, followed by a slow decreasing during the second stage.…”

Section: Figurementioning

confidence: 99%

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Effects of external patch configuration on repaired composite laminates subjected to multi-impacts

Coelho

Reis

Ferreira

et al. 2017

Composite Structures

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Please cite this article as: Santos, R.A.M., Reis, P.N.B., Santos, M.J., Coelho, C.A.C.P., Effect of distance between impact point and hole position on the impact fatigue strength of composite laminates, Composite Structures (2017), doi: http://dx.doi.org/10. 1016/j.compstruct.2017.02.045 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. In terms of multi-impacts, the damage severity is also very influenced by the distance. For small distances the damage progresses quickly, while three stages can be found for the control samples and for the distance of 20 mm. Effect of distance between impact

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Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Effects of external patch configuration on repaired composite laminates subjected to multi-impacts

Coelho

Reis

Ferreira

et al. 2017

Composite Structures

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“…Despite the extensive literature in this area there is almost no research which highlights the role of higher velocity impact onto damaged panels subject to preload a situation more consistent with real flight conditions. The lack of literature in this area has been highlighted in recent work by Amaro et al [7] who investigated the influence of multiple impacts on GFRP coupons with a quasi-isotropic layup. Three different sequences of impacts with the same total impact energy were investigated, (1 + 1 + 1) J, (1 + 2) J and 3 J.…”

Section: Introductionmentioning

confidence: 97%

The influence of preload and boundary conditions on pre-damaged composite plates subject to soft-body impact

McCallum

2015

Materials & Design

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“…The first modelling study of multi-impacts with sequences of different energy levels was performed by Amaro et al (2013). In this study, the influence of repeated low-velocity impact with different energy levels on glass-fibre/epoxy laminates was verified.…”

Section: Repeated Impacts Modellingmentioning

confidence: 99%

Modelling of Damage Evolution in Braided Composites: Recent Developments

Wang

Roy

Zhong

2017

Mech Adv Mater Mod Process

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Composites reinforced with woven or braided textiles exhibit high structural stability and excellent damage tolerance thanks to yarn interlacing. With their high stiffness-to-weight and strength-to-weight ratios, braided composites are attractive for aerospace and automotive components as well as sports protective equipment. In these potential applications, components are typically subjected to multi-directional static, impact and fatigue loadings. To enhance material analysis and design for such applications, understanding mechanical behaviour of braided composites and development of predictive capabilities becomes crucial. Significant progress has been made in recent years in development of new modelling techniques allowing elucidation of static and dynamic responses of braided composites. However, because of their unique interlacing geometric structure and complicated failure modes, prediction of damage initiation and its evolution in components is still a challenge. Therefore, a comprehensive literature analysis is presented in this work focused on a review of the state-of-the-art progressive damage analysis of braided composites with finite-element simulations. Recently models employed in the studies on mechanical behaviour, impact response and fatigue analyses of braided composites are presented systematically. This review highlights the importance, advantages and limitations of as-applied failure criteria and damage evolution laws for yarns and composite unit cells. In addition, this work provides a good reference for future research on FE simulations of braided composites.

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Influence of multi-impacts on GFRP composites laminates

Cited by 58 publications

References 28 publications

Effects of external patch configuration on repaired composite laminates subjected to multi-impacts

Effects of external patch configuration on repaired composite laminates subjected to multi-impacts

The influence of preload and boundary conditions on pre-damaged composite plates subject to soft-body impact

Modelling of Damage Evolution in Braided Composites: Recent Developments

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