A fractographic study on the effects of hygrothermal conditioning on carbon fiber/epoxy laminates submitted to axial compression

Published on Sep 1, 2017in Engineering Failure Analysis2.897
· DOI :10.1016/J.ENGFAILANAL.2017.05.006
Carlos V. Opelt8
Estimated H-index: 8
Jane Maria Faulstich de Paiva16
Estimated H-index: 16
(UFSCar: Federal University of São Carlos)
+ 1 AuthorsMirabel Cerqueira Rezende1
Estimated H-index: 1
(UNIFESP: Federal University of São Paulo)
Abstract This paper is part of a series of fractographic studies on fiber-reinforced polymer composites submitted to compression, which attempts to fill the gap in the composite failure analysis. Here, the effect of the hygrothermal conditioning is assessed for composite laminates manufactured from a carbon fiber/epoxy resin prepregs, which used plain weave fiber arrangement. The laminate was trimmed into compression test specimens, according to the ASTM D3410 standard. After the test, the aspects of the failure were investigated using a scanning electron microscope, so the compression failure modes could be identified. The fractographic analysis indicates that the lower compressive strength of the conditioned specimens was caused by a decrease in the stiffness of the polymer matrix, due to the plasticizing effect of the moisture exposure.
📖 Papers frequently viewed together
50 Citations
14 Citations
The composite prepreg waste is still an environmental challenge. In the last decade, several researchers have been studying the recycling and reuse processes of composite components, mainly to use in secondary (non-structural) components. In this paper, uncured aerospace grade prepreg scraps resulted from the production waste were used to manufacture laminates. The carbon reinforcement of the prepreg presented plain weave style fabric. To manufacture the laminates the hand-lay up process was use...
8 CitationsSource
#1Silvestre T. Pinho (Imperial College London)H-Index: 42
#2Renaud Gutkin (Imperial College London)H-Index: 15
Last. Paul Robinson (Imperial College London)H-Index: 39
view all 5 authors...
Modelling the longitudinal compressive failure of carbon-fibre-reinforced composites has been attempted for decades. Despite many developments, no single model has surfaced to provide simultaneously a definitive explanation for the micromechanics of failure as well as validated predictions for a generic stress state. This paper explores the reasons for this, by presenting experimental data (including scanning electron microscopic observations of loaded kink bands during propagation, and brittle ...
23 CitationsSource
#1Spyros Tsampas (Imperial College London)H-Index: 3
#2Emile S. Greenhalgh (Imperial College London)H-Index: 28
Last. P.T. CurtisH-Index: 17
view all 4 authors...
The compressive failure of multidirectional carbon fibre-reinforced composites is investigated in this paper. Cross-ply and multidirectional compact compression IM7/8552 specimens were tested to deduce the failure mechanisms that occurred during compressive loading. The experimental results and the subsequent fractographic analysis revealed that the stacking sequence had a significant effect on the performance of multidirectional composites under compression. Delamination and in-plane shear frac...
21 CitationsSource
#1Emile S. GreenhalghH-Index: 28
254 CitationsSource
#1Fredrik Stig (KTH: Royal Institute of Technology)H-Index: 6
#2Stefan Hallström (KTH: Royal Institute of Technology)H-Index: 16
Fully interlaced 3D fabric is produced by a new weaving technology, and it is here utilised to produce woven carbon fibre preforms, which are then used as reinforcement in composite materials. The ...
61 CitationsSource
#1Soraia Pimenta (Imperial College London)H-Index: 15
#2Renaud Gutkin (Imperial College London)H-Index: 15
Last. Paul Robinson (Imperial College London)H-Index: 39
view all 4 authors...
17.01.14 KB. Ok to add accepted version to spiral, Elsevier says ok while mandate is not enforced.
99 CitationsSource
#1L.A.L. Franco (Aeronáutica)H-Index: 3
#2M.L.A. Graça (Aeronáutica)H-Index: 1
Last. Filipe Silva (University of Minho)H-Index: 31
view all 3 authors...
Abstract This paper is concerned with the understanding of the relationship between fatigue resistance and environmental conditioning by the fractographic analysis of the fracture surfaces. It assesses the fracture mode of fatigue tested laminates, carried out at different temperatures: −55 °C, +20 °C and +80 °C, and under two moisture contents, dry and 75% of saturated condition. It is verified that temperature is the most detrimental factor in environmental conditioning for fatigue. The influe...
42 CitationsSource
#1Carlos González (UPM: Technical University of Madrid)H-Index: 42
#2Javier LLorca (UPM: Technical University of Madrid)H-Index: 73
Abstract The mechanical behavior of polymer–matrix composites unidirectionally reinforced with carbon or glass fibers subjected to compression perpendicular to the fibers was studied using computational micromechanics. The stress–strain curve was determined by the finite element analysis of a representative volume element of the microstructure idealized as a random dispersion of parallel fibers embedded in the polymeric matrix. The dominant damage mechanisms experimentally observed – interface d...
344 CitationsSource
#2Keith H. NettingH-Index: 1
Last. A.R. Chambers (University of Southampton)H-Index: 15
view all 3 authors...
An investigation was conducted to establish the effects of specimen preparation and configuration on the measured compressive strength of unidirectional carbon fibre. The compressive strength was determined through ASTM D 695 M [ASTM D 695 M, Standard test method for compressive properties of rigid plastics. http://www.astm.org] test method. Specimens conforming to this standard were produced with different thickness, edge and surface preparation. Optical and electron (SEM) microscopical techniq...
26 CitationsSource
#1Christos Tsenoglou (NTUA: National Technical University of Athens)H-Index: 10
#2S. Pavlidou (NTUA: National Technical University of Athens)H-Index: 5
Last. Constantine D. Papaspyrides (NTUA: National Technical University of Athens)H-Index: 27
view all 3 authors...
Abstract Water penetration in composite materials of different interfacial strengths has been studied and explained as the result of two parallel processes, i.e., diffusion through the polymer matrix and through a network of micro-channels formed along the imperfectly bonded polymer-fiber interface. Such channels along the exterior of the loose fiber are presumed to contribute a mesoscopic “free volume” to the composite which is conductive to diffusion. An analytical method based on an adaptatio...
123 CitationsSource
Cited By20
#1Zheng-Qiang Cheng (Beihang University)
#2Wei Tan (QMUL: Queen Mary University of London)H-Index: 33
Last. Junjiang Xiong (Beihang University)H-Index: 16
view all 3 authors...
Abstract null null This paper developed a fatigue-driven residual strength model considering the effects of low-velocity impact (LVI) damage and stress ratio. New fatigue failure criteria based on fatigue-driven residual strength concept and fatigue progressive damage model were developed to simulate fatigue damage growth and predict fatigue life for plain-weave composite laminates with LVI damage. To validate the proposed model, LVI tests of plain-weave glass fibre reinforced polymer 3238A/EW25...
#1Thaís Peres Zanetine Marques (UNIFESP: Federal University of São Paulo)
#2Sergio MayerH-Index: 5
Last. Mirabel Cerqueira Rezende (UNIFESP: Federal University of São Paulo)H-Index: 34
view all 4 authors...
Abstract This study presents the main fractographic aspects and failure modes involved on the fracture of scarf repaired laminates submitted to tensile test, using scanning electron microscopy (SEM) technique. A detailed analysis of the fractographic aspects was carried out correlating them to the failure modes, the local crack propagation, and the mechanical performance of the scarf joint. SEM analyses showed cohesive failure of the adhesive film associated with a strong mechanical anchoring be...
1 CitationsSource
#1Sang Yoon ParkH-Index: 11
#2Won Jong Choi (Korea Aerospace University)H-Index: 9
view all 2 authors...
This paper presents a review of recent literature related to the static mechanical testing of thermoset-based carbon fiber reinforced composites and introduces a material qualification methodology ...
#1Khalil Hamdi (CNRS: Centre national de la recherche scientifique)H-Index: 3
#2Gurvan MoreauH-Index: 1
Last. Zoheir Aboura (CNRS: Centre national de la recherche scientifique)H-Index: 17
view all 3 authors...
Abstract In this work, a description of carbon fiber reinforced polymers (CFRP) compression-damaging scenario from first micro-damages to final failure of the material and potential effect of matrix (resin) on compressive mechanical properties and the damaging scenario is given. For that, two types of CFRP with the same woven reinforcement but with different resin were tested. First, combined load compression (CLC) tests were performed and the macroscopic compression behavior was then compared b...
2 CitationsSource
Abstract The damage mechanism in a composite plate with an edge notch influenced by water freezing and subjected to bending loading is investigated using Scanning Electron Microscopy images. The microstructure of the composite plate around the notch tip induced by freeze-thaw cycles is compared to dry specimens and showed a change in shape of the notch in micro-scale as well as introducing surface minor damage after conditioning. Moreover, the fracture surface of specimens, conditioned for 10, 2...
1 CitationsSource
#1J.A.P. Cunha (ITA: Instituto Tecnológico de Aeronáutica)H-Index: 1
#1Jap Cunha (ITA: Instituto Tecnológico de Aeronáutica)
Last. MC Rezende (UNIFESP: Federal University of São Paulo)
view all 4 authors...
Tensile tests were assessed to evaluate the ageing effects on carbon fiber/epoxy resin laminates exposed to ozone and water immersion. Laminates with distinct fiber arrangements (unidirectional - U...
#1Cristiano Baierle de Azevedo (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 2
Last. Sandro Campos Amico (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 36
view all 5 authors...
The mechanical response of composite structures may be affected by harsh environments, particularly when the matrix has a major contribution, e.g. with off-axis plies. This study aims at investigat...
8 CitationsSource
#1M. Sharan Chandran (VIT University)H-Index: 2
#2K. Padmanabhan (VIT University)H-Index: 8
This study is an attempt to fill the gap in the fractographic studies conducted in various quasi-static mechanical tests to recognize the failure mechanisms and their correlation with its properties of self-reinforced polymer composite materials (SRC). SRCs are the class of composite materials developed by combining the same family of materials as constituent matrix and reinforcement. Thermoplastic linear aliphatic olefins like polyethylene (PE) and polypropylene (PP) are the systems analysed he...
#1Sanan H. Khan (IITK: Indian Institute of Technology Kanpur)H-Index: 8
#2Ankush P. Sharma (IITK: Indian Institute of Technology Kanpur)H-Index: 7
Last. Ankush Sharma (IITK: Indian Institute of Technology Kanpur)H-Index: 8
view all 2 authors...
Abstract In this study, tensile behavior of Glass Fiber Reinforced Polymer (GFRP) sandwiched with different thickness aluminium alloy layers were investigated at strain rates of the order 400–480 /s. The loading was induced through Spilt Hopkinson Tensile Bar (SHTB) setup and specimen size and shape were determined through Finite Element (FE) analysis by ensuring all damage modes should evolve inside the gauge region of the specimen. Three GLAss fiber REinforced (GLARE) aluminium laminates with ...
4 CitationsSource
#1Jose Leandro Correia Alves (UFSCar: Federal University of São Carlos)H-Index: 1
#2Karen de Souza do Prado (UFSCar: Federal University of São Carlos)H-Index: 1
Last. Jane Maria Faulstich de Paiva (UFSCar: Federal University of São Carlos)H-Index: 16
view all 3 authors...
ABSTRACTIn this work, compressive and interlaminar shear properties of hybrid laminates were evaluated in order to fulfill the gap regarding the analysis of these mechanical properties and their im...
2 CitationsSource