An experimental assessment of open-hole tension–tension fatigue behaviour of a GFRP laminate

Broughton, W R; Gower, M R L; Lodeiro, M J; Pilkington, G.D.; Shaw, R M

doi:10.1016/j.compositesa.2011.05.014

Cited by 45 publications

(33 citation statements)

References 14 publications

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“…Non-destructive testing equipment has been used to continuously monitor the fatigue damage in conventional laminated composites, such as acoustic emission [13,14,15], digital image correlation [14,16], and thermography [14,13,17,15].…”

Section: Introductionmentioning

confidence: 99%

Open hole quasi-static and fatigue characterisation of 3D woven composites

Dai

Cunningham

Marshall

et al. 2015

Composite Structures

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Citation: DAI, S. ...et al., 2015. Open hole quasi-static and fatigue characterisation of 3D woven composites. Composite Structures, 131, Additional Information:• This paper was accepted for publication in the journal Compos- AbstractThis paper presents a comprehensive study on the open-hole quasi-static tensile and tension-tension fatigue behaviour of an orthogonal and an angle-interlock 3D woven carbon/epoxy composite. The full-field strain distribution during quasi-static tests was characterised using digital image correlation (DIC), and the fatigue damage behaviour was monitored using an infra-red camera. The notched tensile strength was less than 17% lower than the un-notched tensile strength and not very sensitive to the notch size. The fatigue specimens were loaded with maximum stress of about 60% of the ultimate failure stress and no complete fracture occurred after 5,000,000 cycles. The residual fatigue strength was also found to be similar to the quasi-static tensile strength in both weaves. The surface crack initiation and progression during fatigue loading was identified using thermoelastic stress analysis which revealed that the orthogonal weave had larger surface damage area than the angle-interlock weave.

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Section: Introductionmentioning

confidence: 99%

Open hole quasi-static and fatigue characterisation of 3D woven composites

Dai

Cunningham

Marshall

et al. 2015

Composite Structures

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“…The thermography images describes well the damage at the hole area and can be useful for damage monitoring. The temperature changes with the load increase were due to the stress concentration that initiates the presence of damage mechanisms [14,25,26,27]. The temperature distribution for both specimens consist of two phases, as illustrate in Figure 6.…”

Section: Resultsmentioning

confidence: 96%

Damage Behaviour and Stress Concentration Factor of Open Hole Tensile (OHT) Glass Fibre Reinforced Polymer (GFRP) Composites

Bale

2019

IJAME

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In many applications of composites, open-hole frequently includes for various purposes. However, further study on open-hole behaviour is still required, including on its strength and damage properties by combining experimental testing, real-time observations and calculations based on theoretical analysis and simulation model. The objective of this study is to understand the effect of an open-hole glass fibre reinforced polymer (GFRP) composites on tensile (static) properties, damage behaviour through Non-destructive Testing (NDT) Thermography and stress concentration factor (SCF). This study used an open-hole rectangular of GFRP specimens that fabricated by filament winding (FW) method and resin transfer moulding (RTM) method. It is found that the RTM specimens generate ≈ 170 % higher of tensile strength and ≈ 100 % higher of tensile modulus compared to the FW specimens. Infra-red (IR) camera shown the good detection on damage behaviour based on temperature increase at elastic and failure phase. Moreover, theoretical analysis and simulation results shown the good correlation where SCF reaches more than 4 times at the edge of the hole. This study concludes that open-hole on GFRP composites affects the tensile properties and generates damage marked by temperature increase and high SCF at the edge of the hole.

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“…Broughton et al studied the behavior of open hole GFRP laminate in TTF. DIC and multiplexed fiber Bragg grating (FBG) sensors were used and their applicability in the strain monitoring was also evaluated.…”

Section: Notch/stress Concentrationmentioning

confidence: 99%

Fatigue behavior of FRP composites and CNT‐Embedded FRP composites: A review

Gaurav

Singh

2016

Polymer Composites

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Composite materials have emerged as an effective substitute for conventional materials in various fields of engineering and structural science. For replacement of regular metals, composites, especially fiber‐reinforced polymer composites, have proved to be a suitable alternative. One of the important tests that conventional and composite materials have to undergo is fatigue test. It refers to the testing of materials for their cyclic behavior. In fatigue testing, depending on the choice of the researchers, materials are loaded till reaching their failure or till reaching a fraction of the total stiffness loss. Composite materials are different from metals and they show a distinct behavior under fatigue loading. In metals, failure occurs from the commencement of a single crack and then its propagation. In composite materials, conversely, it is a complex process as these materials possess crack‐arresting properties. This review paper highlights various aspects of the cyclic or fatigue behavior in composite materials. Factors triggering such behavior in composite materials include reinforcing substance, matrix material, fiber orientation or stacking sequence, fiber content, testing environment and so on, together with the damage development process at the microscopic level. Loading condition parameters pertain to stress ratio, mean stress, loading condition, multiaxial stress, and testing frequency. This article also includes the effect of carbon nanotubes on the fatigue life of the polymer composites. POLYM. COMPOS., 39:1785–1808, 2018. © 2016 Society of Plastics Engineers

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An experimental assessment of open-hole tension–tension fatigue behaviour of a GFRP laminate

Cited by 45 publications

References 14 publications

Open hole quasi-static and fatigue characterisation of 3D woven composites

Open hole quasi-static and fatigue characterisation of 3D woven composites

Damage Behaviour and Stress Concentration Factor of Open Hole Tensile (OHT) Glass Fibre Reinforced Polymer (GFRP) Composites

Fatigue behavior of FRP composites and CNT‐Embedded FRP composites: A review

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