Prediction of delamination growth in laminated composites using acoustic emission and Cohesive Zone Modeling techniques

Saeedifar, Milad; Fotouhi, Mohamad; Najafabadi, Mehdi Ahmadi; Hosseini‐Toudeshky, Hossein

doi:10.1016/j.compstruct.2015.01.003

Cited by 64 publications

(45 citation statements)

References 32 publications

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“…As stated by previous studies [27][28][29][30][31][32][33][34][35][36] AE signal generated from each failure mode of laminated composites, such as matrix cracking, debonding and fiber breakage, has its specific ranges of amplitude and duration. Lower duration and amplitude values are related to matrix cracking, while the higher values are linked with fiber breakage.…”

Section: Clustering Resultsmentioning

confidence: 99%

“…AE signal is a spontaneous transient energy released by different damage sources such as matrix cracking, fiber breakage during the loading [27]. This technique was used to distinguish the failure modes in laminated composite materials and there was a promising applicability of this method [28][29][30][31][32][33][34]. Their results presented a capable applicability of AE parameters for classification of damage mechanisms in laminated composite materials.…”

Section: Introductionmentioning

confidence: 99%

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Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines

Fotouhi

Saghafi

Brugo

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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The use of light composites when designing fast moving parts for machine tools is emerging as a very efficient solution for improving productivity. Nevertheless several aspects of these materials have to be carefully considered in woodworking. This paper aims to investigate the effect of interleaved nanofiber on mode I interlaminar properties and the failure modes that occur in this mode. For this purpose, woven carbon/epoxy laminates with and without Polyvinylidene difluoride nanofibers in the mid-plane were subjected to mode I interlaminar loading and the results were compared with each other. Acoustic Emission technique was also utilized for better understanding of the failure modes that occurred in the virgin and nanofibersmodified specimens. Mechanical data and acoustic emission parameters associated with pattern recognition analyses were used for investigation of the interlaminar properties and the occurred failure modes. The mechanical results showed that the electrospun nanofibrous mat was able to increase the GIC by 98%. The AE results highlighted that different failure modes were the origin of different interlaminar failure behaviors. Different percentages of the failure modes in the 2 modified specimens compared with the virgin ones were observed. Furthermore, the number of occurred interlaminar failure modes diminished in the modified composite layers.

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Section: Clustering Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines

Fotouhi

Saghafi

Brugo

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…[9][10][11][12][13][14] Interface crack is usually considered in the failure of linear elastic mismatched material, such as fiber laminates. 12,14 It is usually studied by double cantilever beam (DCB) test and finite element analysis. 15 Cohesive zone model (CZM) has become a widely used method to study interface crack by constructing force and displacement constitutive model of crack tip to avoid the singularity of crack tip.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the fatigue crack behavior of Zr702/TA2/Q345R composite plate with a crack normal to interface

Zhou

et al. 2019

Fatigue Fract Eng Mat Struct

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In this paper, the effects of maximum load, load ratio, and average load on fatigue crack propagation of Zr702/TA2/Q345R composite plate with a crack normal to the interface are studied by experiment and finite element method. When crack propagates to the interface from the compliant material side, the crack growth rate decreases to the minimum at first. After crack penetrates through the interface, the fatigue crack growth rate accelerates continuously. When crack propagates to the interface from the stiff material side, the fatigue crack growth rate generally increases with the crack length. Regardless of the direction of crack growth, the increase of load ratio will weaken the difference of crack growth rate near the interface caused by material property mismatch. Finite element results show that elastic modulus mismatch significantly changes the variation of the stress intensity factor amplitude. All results demonstrate that crack growth rate is dependent on the competition of the stress intensity factor amplitude, the fatigue crack growth rate in the corresponding material, and the interface strength.

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“…(Wang & Xu 2015) presented an approach using cohesive elements to simulate propagation of a delamination, including descriptions of both propagation direction and effective propagation length under high-cycle fatigue loading. (Saeedifar et al 2015) and (Haselbach, Bitsche & Branner 2016) have shown that the modified CZM technique exhibits good performance in simulating crack initiation and delamination crack length in laminated composite structures.…”

Section: Finite Element Simulation Of Crack Surfacementioning

confidence: 99%

“…Acoustic emission (Saeedifar et al 2015), ultrasonics (Karabutov & Podymova 2014), shearography (Taillade et al 2013), thermography (Colombo & Vergani 2014;Haj-Ali & Elhajjar 2014;Haj-Ali et al 2008;Johnson 2014) are some of the major established technologies. The primary attraction of thermographic techniques is that they furnish full-field imagery and thereby are generally much more rapid than point-wise alternatives such as conventional ultrasonics and tap testing.…”

Section: Introductionmentioning

confidence: 99%

Detection and characterisation of delamination damage propagation in Woven Glass Fibre Reinforced Polymer Composite using thermoelastic response mapping

Kakei

Epaarachchi

Islam

et al. 2016

Composite Structures

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Prediction of delamination growth in laminated composites using acoustic emission and Cohesive Zone Modeling techniques

Cited by 64 publications

References 32 publications

Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines

Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines

Investigation on the fatigue crack behavior of Zr702/TA2/Q345R composite plate with a crack normal to interface

Detection and characterisation of delamination damage propagation in Woven Glass Fibre Reinforced Polymer Composite using thermoelastic response mapping

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