Cohesive Model for the Simulation of Crack Initiation and Propagation in Mixed-Mode I/II in Composite Materials

Pantano, Antonio

doi:10.1007/s10443-019-09774-6

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…This damage can lead the entire structure to failure, as the material strength is proportional with the degree of delamination (Latifi et al [2015]). This damage is the loss of stiffness in the material due to spaces formed between the adjacent layers of a laminate and is the main source of cracks in composite structures (Pantano [2019]).…”

Section: Damage In Main Helicopter Rotor Bladementioning

confidence: 99%

Sensor Placement Optimization of a Helicopter Main Rotor Blade

Pereira¹,

Francisco²,

Jorge³

et al. 2022

Uncertainty Modeling: Fundamental Concepts and Models

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This chapter describes the importance of one of the major areas within Structural HealthMonitoring and Health and Usage Monitoring Systems: Sensor Placement Optimization (SPO). In this sense, the most important SPO metrics are presented and discussed with the reader. The methodological procedure of the optimization problem statement is also considered and discussed. he significance of rotary-wing aircraft, damages that can occur in the blade, works related to damage identification, modern methods and algorithms that have been used in this context, and a comprehensive SPO study for a helicopter main rotor blade will be presented. Finally, a new technique that considers the number of sensors as an objective associated with some of the main metrics used in SPO. The technique uses the Multiobjective Lichtenberg Algorithm and Feature Selection, an important area used in Data Mining.

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Section: Damage In Main Helicopter Rotor Bladementioning

confidence: 99%

Sensor Placement Optimization of a Helicopter Main Rotor Blade

Pereira¹,

Francisco²,

Jorge³

et al. 2022

Uncertainty Modeling: Fundamental Concepts and Models

View full text Add to dashboard Cite

show abstract

“…The energy controlled damage formulation proved to be robust and thus best suited for cohesive zone beam modelling of delamination. Pantano [23] put forward a cohesive element that could connect and simulate crack growth between independently modeled finite element subdomains with non-matching meshes. The approach is based on penalty constraints.…”

Section: Introductionmentioning

confidence: 99%

Flexural properties of electrothermal deicing composite laminates: Experimental and numerical study

Zhang

Chen

et al. 2022

Thin-Walled Structures

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“…The mixedmode I/II fracture experiments of central crack disk specimens were studied by using sandstone [16][17][18], limestone [19] and cement mortar [20]. A penalty-based cohesive element technology was presented [21,22] and used to develop an application for predicting delamination crack growth in mixed-mode I/II [23]. Even though the mixed-mode I/II fracture experiments of four-point bending were studied [24,25], the three-point bending specimen was more widely used, and the experimental parameters were easier to control.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Mixed-Mode I/II/III Fracture Toughness Based on a Three-Point Bending Sandstone Specimen with an Inclined Crack

et al. 2021

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The crack-propagation form may appear as an arbitrary mixed-mode fracture in an engineering structure due to an irregular internal crack. It is of great significance to research the mixed-mode fracture of materials with cracks. The coupling effect of multiple variables (crack height ratio, horizontal deflection angle and vertical deflection angle) on fracture parameters such as the stress intensity factors and the T-stress are the key points in this paper. A three-point bending specimen with an inclined crack was proposed and used to conduct mixed-mode fracture research. The fracture parameters were obtained by finite element analysis, and the computed results showed that the pure mode I fracture and mixed-mode fractures (mode I/II, mode I/III and mode I/II/III) can be realized by changing the deflection angles of the crack. The pure mode I and the mixed-mode fracture toughness of sandstone were obtained by a series of mixed-mode fracture experiments. The experimental results were analyzed with the generalized maximum tangential strain energy density factor criterion considering T-stress. The results showed that the non-singular term T-stress in the fracture parameters cannot be ignored in any mixed-mode fracture research, and the generalized maximum tangential strain energy density factor criterion considering T-stress can better predict the mixed-mode fracture toughness than other criteria.

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Cohesive Model for the Simulation of Crack Initiation and Propagation in Mixed-Mode I/II in Composite Materials

Cited by 9 publications

References 29 publications

Sensor Placement Optimization of a Helicopter Main Rotor Blade

Sensor Placement Optimization of a Helicopter Main Rotor Blade

Flexural properties of electrothermal deicing composite laminates: Experimental and numerical study

Analysis of Mixed-Mode I/II/III Fracture Toughness Based on a Three-Point Bending Sandstone Specimen with an Inclined Crack

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