Finite Element Analysis of Progressive Degradation versus Failure Stress Criteria on Composite Damage Mechanics

Curiel-Sosa, J.L.

doi:10.5772/13886

Cited by 2 publications

(2 citation statements)

References 59 publications

(48 reference statements)

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“…For the inter-laminar damage, the Virtual Crack Closure Technique (VCCT) and the Cohesive Zone Model (CZM) are mostly applied. The main disadvantage of VCCT is the lack of damage initiation criteria [21] contrary to CZM, whose use has been recently boosted for predicting delamination growth. Despite of the method's increased application by researchers [3], [9], [14], [17], [18], [22]- [26] one of the main disadvantages of CZM is the reduced computational efficiency [9], [14], [18], [22], [23], [26].…”

Section: Introductionmentioning

confidence: 99%

Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels

Gaitanelis

Giannopoulos

Theotokoglou

2019

Thin-Walled Structures

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This paper examined the effect of numerical modelling parameters on the accuracy and computational efficiency of Carbon Fibre Reinforced Polymer (CFRP) stiffened panels under Compression After Impact (CAI). Pristine and damaged CFRP stiffened panels were subjected to compression in Abaqus ® software using Cohesive Zone Model (CZM) method. Various case studies were examined and the effect of the stiffness parameters of the cohesive elements was critically assessed. Moreover, the required number of cohesive zones to fully capture the damage mechanisms of the impacted and pristine panels under compressive loading was examined. The results showed that a wrong set of parameters can even lead to neglecting the induced damage and can cause severe convergence problems in the numerical model. The importance of the Overall Meshing Factor (OMF) was highlighted and a user-defined subroutine (USDFLD) was applied to capture the decrease in the load bearing capability of an impacted panel prior to the compressive loading, since CZM was found insufficient for this scope. The above-mentioned remarks illustrated the process of investigating the optimum numerical parameters set to achieve an accurate and efficient finite element modelling of the stiffened panels structural performance and maximum load-carrying capability, when subjected to CAI loading.

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Section: Introductionmentioning

confidence: 99%

Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels

Gaitanelis

Giannopoulos

Theotokoglou

2019

Thin-Walled Structures

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“…Studies on related engineering applications such as helicopter rotor blades prone to matrix cracking preceding fibre breaking [10], [11], cracking of large laminates used in wind turbines [12], damage created by hail ice impacts on leading-edge, control surfaces, engine nacelles, fan blades of aircrafts [13], and soft body impact [14] can be found in the literature. εodelling progressive damage [15] and [16], and prediction of fracture in composite laminates with different techniques, such as extended Finite Element εethod (XFEε) [17], is another area of interest for obvious critical-safety reasons.…”

Section: Introductionmentioning

confidence: 99%

On the Calculation of Energy Release Rates in Composite Laminates by Finite Element, Boundary Element, and Analytical Methods

Tafazzolimoghaddam

Curiel-Sosa

2015

Comp Mech Comput Appl Int J

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To characterise a transversal crack evolution in a cross-ply [0/90] s fibre reinforced composite laminate, the associated energy release rate (ERR) was calculated by means of the J-integral embedded into the Finite Element Method (FEM). The ERR values computed for the propagation of the transversal crack were correlated to the ones obtained by using the Virtual Crack Closure Technique (VCCT) embedded within the Boundary Element Method (BEM). In addition, the results were compared with analytical values. The results correlated well except when the crack length was approximately 80% of the ply thickness. In such case, ERR values showed some discrepancies between FEM and BEM. The reason stems from the fact that in the VCCT used not all components of the stresses are considered, resulting in smaller ERR values. In addition, the results proved that transversal cracks can influence each other only in a limited distance.

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Finite Element Analysis of Progressive Degradation versus Failure Stress Criteria on Composite Damage Mechanics

Cited by 2 publications

References 59 publications

Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels

Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels

On the Calculation of Energy Release Rates in Composite Laminates by Finite Element, Boundary Element, and Analytical Methods

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