Low-energy impact effects on candidate automotive structural composites

Corum, J.M.; Battiste, R.L.; Ruggles‐Wrenn, M. B.

doi:10.1016/s0266-3538(02)00265-8

Cited by 25 publications

(16 citation statements)

References 16 publications

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“…There is strong evidence from these specimens in Figures 11a -11e that a combination of matrix cracking, delamination and fibre breakage are the predominant failure modes. These failure mechanisms agree very well with the impact damages reported by (Corum et al 2003;Rio et al 2005) for chopped glass fibre composites and Carbon fibre reinforced Epoxy matrix composites.…”

Section: Failure Mechanismssupporting

confidence: 90%

The impact damage response of plain woven natural silk/epoxy laminated composite plates

Ude¹,

Ariffin²,

Sopian³

et al. 2010

Int. J. Eng. Sci. Tech

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This paper presents the impact response of woven natural silk (WNS)/Epoxy composite. The composite specimens were prepared in configurations of 10, 15, 20, 25 and 30 ply of WNS. Drop weight impact test was carried out under varied impact energies of 32J, 48J and 64J. Examinations of load bearing capability, energy absorption capability and damage process from initiation of damage to final perforation, with regards to increasing number of WNS Ply and increasing impact loads were investigated. It was observed that load bearing capability increases with increase in the number of WNS ply. Further investigation of each plate revealed that load bearing capability increases with increase in impact load. The energy absorption capability also increased with increase in the number of WNS ply. It is important to note that as the thickness of the specimen increases, delamination and surface area damage increased. The scanning electronics microscope (SEM) result showed mechanism of failure as a combination of delamination, fibre-matrix debonding, fibre breakage and interlaminar matrix cracking.

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Section: Failure Mechanismssupporting

confidence: 90%

The impact damage response of plain woven natural silk/epoxy laminated composite plates

Ude¹,

Ariffin²,

Sopian³

et al. 2010

Int. J. Eng. Sci. Tech

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“…Such technologies are also promising in terms of production costs, as they allow to manufacture large parts in single moulding operations and to pay back the initial costs even for low/medium production volumes (10,000÷100,000 parts) [1,2,4,5]. Moving from the previous considerations, some authors point out that raw material cost is the major limit for the diffusion of composite in automotive mass production [4,5], though other drawbacks are often mentioned such as the aesthetic requirements relevant to high quality surface finish for external parts or the need to increase the amount of recycling materials [5,6]. Moreover, composites tend to develop damage during manufacturing and handling as well as delamination due to impacts with foreign objects or debris [5,6], which may lead to severe reduction of strength properties.…”

Section: Introductionmentioning

confidence: 99%

“…Moving from the previous considerations, some authors point out that raw material cost is the major limit for the diffusion of composite in automotive mass production [4,5], though other drawbacks are often mentioned such as the aesthetic requirements relevant to high quality surface finish for external parts or the need to increase the amount of recycling materials [5,6]. Moreover, composites tend to develop damage during manufacturing and handling as well as delamination due to impacts with foreign objects or debris [5,6], which may lead to severe reduction of strength properties. These limitations are a major concern in high performance composite laminates but also affect composite material systems specifically suited for mass production technologies [6].…”

Section: Introductionmentioning

confidence: 99%

Design of a Motorcycle Composite Swing-Arm by Means of Multi-objective Optimisation

Airoldi

Bertoli

Lanzi³

et al. 2011

Appl Compos Mater

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A study for the replacement of a metallic swing-arm of a high performance motorcycle with a composite part is presented. Considering the high structural effectiveness of the original metallic component, the case study evaluates the potential of composites in a challenging application. The FE model of the original component is developed to evaluate the structural performance in the most significant load conditions. A manufacturing process, based on a RTM technique, is proposed and analysed in order to develop realistic design hypotheses. The design approach is based on an optimisation process with 60 design variables. A constrained multi-objective genetic algorithm is applied to identify the solutions representing the best trade-off between mass reduction and improvement of torsional stiffness. Results show that composite materials can enhance the structural efficiency of the original metallic part, even considering technological limitations and damage tolerance requirements.

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“…Sung et al [15] have found that the acoustic emission waves, generated by a low-velocity impact loading, do not allow them to distinguish the damage modes and their size. Corum et al [16] determined the damaged area of impacted specimen by ultrasonic C-scans. Furthermore, the damage characteristics of the perpendicular cross-section of the impacted laminates can be observed using destructive methods [17].…”

Section: Introductionmentioning

confidence: 99%

The effect of stacking sequence on the impact-induced damage in cross-ply E-glass/epoxy composite plates

Mili

Necib

2008

Arch Appl Mech

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The aim of this study is to determine the damage mechanisms of unidirectional E-glass/epoxy laminated composites under localized impacts. The projectile velocities at low ranges (0.54-3.10 m/s) have been considered to establish a parametric analysis of clamped laminated composite responses. The used circular plates are symmetrical laminates which are composed of ten plies and have three different cross-ply stacking sequences: [0 2 /90 6 /0 2 ], [0 3 /90 4 /0 3 ] and [0 4 /90 2 /0 4 ]. They are subjected at their centers to an impact of an aluminum projectile which is applied in the transverse direction by using a drop weight machine. The time histories of the impactor acceleration, the projectile displacement and the plate deflection were measured. The analysis of the nature of the damage mechanisms and its relation to the structural responses has been performed. The identification of the matrix cracks and the delamination at the interfaces has allowed to determine the initiation and extension criteria of the damage.

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Low-energy impact effects on candidate automotive structural composites

Cited by 25 publications

References 16 publications

The impact damage response of plain woven natural silk/epoxy laminated composite plates

The impact damage response of plain woven natural silk/epoxy laminated composite plates

Design of a Motorcycle Composite Swing-Arm by Means of Multi-objective Optimisation

The effect of stacking sequence on the impact-induced damage in cross-ply E-glass/epoxy composite plates

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