Analysis of pure mode III and mixed mode (III+II) interlaminar crack growth in polymeric woven fabrics

Mehrabadi, Farhad Asgari

doi:10.1016/j.matdes.2012.07.071

Cited by 22 publications

(16 citation statements)

References 31 publications

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“…It could be noticed that mode III was mainly dominated between the normalised distance of 0.34-0.86. It was in accordance to what has been reported by other researchers, where ECT test has the advantage of having pure mode III in the region between the loading and support pins [5,14,15,17,25]. In addition, it is worth to note that the normalised location near 0.34 was also the location with the minimal mode II component.…”

Section: Crack Front and Fracture Process Zone Profilessupporting

confidence: 92%

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Cohesive zone modelling of Mode III delamination using the edge crack torsion test

Israr¹,

Wong²,

Tamin³

2017

J. MECH. ENG. SCI.

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In the experimental studies of mode III delamination using the edge crack torsion test, the crack initiation and propagation measurement are always difficult. This information could be obtained through numerical modelling. The objective of this study is to propose a guideline to model mode III delamination behaviour using cohesive elements. Finite element models of an edge crack torsion specimen were developed based on the data from the literature. The delamination behaviour of the specimen along the pre-crack, which was located at the mid-thickness location, was modelled using cohesive elements. Through parametric studies, it was found that for reliable numerical modelling, a mesh size of 0.5 mm was suggested, which provided three elements in the cohesive zone. As for the interface strength, it was recommended to choose 80 MPa. In addition, a viscosity parameter of 110 -3 was found to be a good choice for reasonable computational time and converged numerical results. Besides, the interface stiffness was suggested to be 410 6 MPa/mm. Furthermore, the fracture process zone contour revealed that the delamination was started at a normalised location of approximately 0.7. Not only that, the fracture energy and strain distribution plots have shown the delamination was mode III dominated within the normalised distance of 0.34-0.86. The results from this study suggested that cohesive zone modelling is a useful method for the detailed analysis of the mode III delamination of an ECT specimen. The numerical modelling approach suggested from this study could be applied to ECT specimens at various different initial crack lengths. It also has the potential to be used to simulate the mode III delamination of other various types of laminated composites.

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Section: Crack Front and Fracture Process Zone Profilessupporting

confidence: 92%

“…The VCCT has been commonly employed by various researchers to simulate the mode III delamination of carbon/epoxy [6,[14][15][16] and glass/epoxy [3,5,[17][18][19][20] composite laminates. Nevertheless, in recent years, the CZM has gained its popularity in simulating the delamination behaviour of laminated composites.…”

Section: Introductionmentioning

confidence: 99%

Cohesive zone modelling of Mode III delamination using the edge crack torsion test

Israr¹,

Wong²,

Tamin³

2017

J. MECH. ENG. SCI.

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“…The values of SERRs such that G IIC = G IIIC = 822 J/m 2 are assumed and referred to the work by Asgari Mehrabadi [24] in which mode III and mixed mode delamination behavior of glass woven-fabric laminates with various crack lengths were analyzed. Additionally, the SERR G IC = 600 J/m 2 is estimated from a study by Pereira et al [25] in which the mode I fracture of woven glass multidirectional laminates was presented.…”

Section: Fe Drop Test Model Of the Woven Fabric Composite Curvedmentioning

confidence: 99%

An effective modeling strategy for drop test analysis of composite curved beam

Pham

2015

56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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“…[14,15]) and changes the dynamic properties significantly, and therefore has a major influence on the lifetime of the structure. The delamination behavior of composite materials is characterized by different specimens for mode-I [16][17][18][19][20][21][22][23], mode-II [24][25][26], mixed-mode I/II [27][28][29][30][31][32][33][34][35][36][37], mode-III [38][39][40][41][42][43][44][45][46][47][48], mixed-mode I/III [49] mixed-mode II/III [42,[50][51][52][53][54][55][56][57][58][59] and mixed-mode I/II/III [60][61]…”

Section: Introductionmentioning

confidence: 99%

Antiplane–inplane shear mode delamination between two second-order shear deformable composite plates

Szekrényes

2016

Mathematics and Mechanics of Solids

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The second-order laminated plate theory is utilized in this work to analyze orthotropic composite plates with asymmetric delamination. First, a displacement field satisfying the system of exact kinematic conditions is presented by developing a double-plate system in the uncracked plate portion. The basic equations of linear elasticity and Hamilton's principle are utilized to derive the system of equilibrium and governing equations. As an example, a delaminated simply supported plate is analyzed using Lévy plate formulation and the state-space model by varying the position of the delamination along the plate thickness. The displacements, strains, stresses and the J-integral are calculated by the plate theory solution and compared with those by linear finite-element calculations. The comparison of the numerical and analytical results shows that the second-order plate theory captures very well the mechanical fields. However, if the delamination is separated by only a relatively thin layer from the plate boundary surface, then the second-order plate theory approximates badly the stress resultants and so the mode-II and mode-III J-integrals and thus leads to erroneous results.

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Analysis of pure mode III and mixed mode (III+II) interlaminar crack growth in polymeric woven fabrics

Cited by 22 publications

References 31 publications

Cohesive zone modelling of Mode III delamination using the edge crack torsion test

Cohesive zone modelling of Mode III delamination using the edge crack torsion test

An effective modeling strategy for drop test analysis of composite curved beam

Antiplane–inplane shear mode delamination between two second-order shear deformable composite plates

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