A contribution to full-scale high fidelity aircraft progressive dynamic damage modelling for certification by analysis

Song, Young Joo; Horton, Brandon; Perino, Scott; Thurber, Andrew; Bayandor, Javid

doi:10.1080/13588265.2018.1424683

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…Prior to conducting the comprehensive study, detailed discussions regarding the virtual fuselage section model are provided. In-depth discussion concerning the verification and validation of the fuselage section model is presented in a previous work (8) . Meanwhile, the verifications of the numerical fluid modelling strategy using FEA are presented with two different element formulations (CLE and SPH) to demonstrate the individual capabilities of each method, leading to the selection of effective element formulations for the FSI methodology.…”

Section: Step-by-step Development Of Finite Element Modelling and Anamentioning

confidence: 99%

“…Due to the considerable lack of publicly available information regarding contemporary aircraft fuselage structures, the current study resorts to developing and using the Boeing 737 section model, partly constructed based on the only existing references on an unrestricted physical trial. The virtual fuselage section used was previously developed and validated for hard-surface drop tests (8) by being thoroughly compared with the experiment reported by Jackson et al (3) . The constructed section is shown in Fig.…”

Section: Virtual Fuselage Sectionmentioning

confidence: 99%

“…The aforementioned fuselage model used for this study is developed based on an existing experiment (3) , with an accompanying validation thoroughly described in a preceding work by Song et al (8) . To conduct a comprehensive analysis, the FSI methodology is combined with the validated fuselage section model.…”

Section: Comprehensive Analysis Of Fuselage Section Drop Into Watermentioning

confidence: 99%

“…In an effort to contribute to improving the crashworthiness assessment, the presented work evaluates a computational approach to accurately simulate water ditching scenarios using a multidisciplinary approach. Many studies have been conducted in an attempt to model fluid-structure interactive (FSI) events, using two of the most popular monolithic finite element formulations; Coupled Lagrangian-Eulerian (CLE) (6)(7)(8) and Smoothed Particle Hydrodynamics (SPH) (9,10) . Considering several shortcomings of the commercial implementation of SPH, however, found in a previous investigation (11) , CLE is used for the current investigation.…”

Section: Introductionmentioning

confidence: 99%

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Verified fuselage section water impact modelling

2019

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Along many flight corridors, bodies of water serve as preferred emergency landing options. Thus, relevant scenarios must be investigated to improve aircraft crashworthiness in the event of an impact landing on water. Enhancing the damage tolerance of aircraft structures through repetitive experiments can, however, prove highly uneconomical. Such large-scale trials can be influenced by many factors of uncertainty adversely affecting the quality of the results. Therefore, the work presented in this study focuses in particular on evaluating a computational methodology perfected for aircraft water ditching using Coupled Lagrangian-Eulerian (CLE) that allows detailed prediction of structural response of a verified deformable fuselage section during such events. Validation of the fluid-structure interactive (FSI) strategy developed is conducted, thoroughly comparing the method against the analytical and experimental results of multiple wedge drop tests. Finally, the validated FSI strategy is applied to a high-fidelity fuselage section model impacting water to simulate and assess a realistic ditching scenario.

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Section: Step-by-step Development Of Finite Element Modelling and Anamentioning

confidence: 99%

Section: Virtual Fuselage Sectionmentioning

confidence: 99%

Section: Comprehensive Analysis Of Fuselage Section Drop Into Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Verified fuselage section water impact modelling

2019

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“…As it is difficult to directly analyze the effect of damage in a component of the structure on the whole aircraft in terms of computational costs, multiple analyses for different scales of the structure are generally conducted, as shown in Figure 1. The nonlinear response of the structures, such as buckling, plasticity, effect of damage, etc., is usually considered in the analysis with a lower scale due to the limitation of computational costs [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A Simplified Finite Element Model of Riveted Joints for Structural Analyses with Consideration of Nonlinear Load-Transfer Characteristics

2021

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A simplified finite element model of riveted joints for structural analyses which effectively incorporates nonlinear response of riveted joints is proposed. Load-transfer characteristics of riveted joints were experimentally and numerically studied. First, a detailed finite element analysis for the process of a tensile test of a single-row joint which consists of squeezing of the rivet and tensile loading to the joint was conducted to confirm the validity of a conventional method of analysis. The load–relative displacement behaviors of single-row joints observed in the detailed finite element analysis and previously conducted experiments agreed well. Then, a simplified method of the analysis was developed based on the detailed analysis and the experiments and was applied to analyses of multiple-row joints. A nonlinear relationship between load and relative displacement in the simplified analyses had good agreement with the detailed one. Distributed loads to the multiple rivets in the simplified analysis coincided with those of the detailed analysis under the maximum load. Memory and CPU time required to run the simplified analyses were reduced to about 1/4 and 1/6 compared to those of the detailed analysis, respectively.

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Investigation of the Crashworthiness Performances and the Effect on Passengers of a Double-Double Designed Skin in a Composite Fuselage Barrel

Garofano,

Riccio

2024

Lecture Notes in Mechanical Engineering

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A contribution to full-scale high fidelity aircraft progressive dynamic damage modelling for certification by analysis

Cited by 8 publications

References 10 publications

Verified fuselage section water impact modelling

Verified fuselage section water impact modelling

A Simplified Finite Element Model of Riveted Joints for Structural Analyses with Consideration of Nonlinear Load-Transfer Characteristics

Investigation of the Crashworthiness Performances and the Effect on Passengers of a Double-Double Designed Skin in a Composite Fuselage Barrel

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