Crashworthiness Study on Fuselage Section and Struts under Cabin Floor

Xue, Pu; Wang, Lin; Qiao, C F

doi:10.1260/2041-4196.2.4.515

Cited by 8 publications

(2 citation statements)

References 8 publications

(3 reference statements)

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“…EU researchers simulated the crash before drop tests [2]. The other groups investigated aircrafts under various crash conditions by simulation [3,4].…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness Study of Composite Fuselage Section

Xue

2016

KEM

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Crashworthiness is one of the requirements for design of aircraft to ensure the safety of passengers on aircraft. With increasing applications of advanced composite in aircraft structures, study on the crashworthiness of composite fuselage is desirable and important. For this purpose, this paper investigates the influence of composites on crashworthiness of fuselage section. Firstly, model of fuselage section of aircraft is established. Skin, frame, stringer and stiffener are made of the composite T800/QY8911 or GLARE. Then, the crash responses subjected to vertical impact velocity of 9.14m/s are analyzed. The acceleration history is recorded for assessment of the crashworthiness. In addition, the deformation process and failure mode of composite fuselage section are analyzed. Results indicate that the frame made of brittle composite may fracture in the crash process, which leads to serious damage to the fuselage. While the frame with good toughness can maintain the integrity of fuselage, thereby protecting passengers.

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“…EU researchers simulated the crash before drop tests [2]. The other groups investigated aircrafts under various crash conditions by simulation [3,4].…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness Study of Composite Fuselage Section

Xue

2016

KEM

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“…Using genetic algorithm optimization, Zheng and Xiang (2010) investigated the crashworthiness of a typical civil aircraft fuselage structure and studied the effects of the struts, cargo floor and foam filled components. Xue and Wang (2011) investigated the performance of the struts which support the floor in a typical fuselage section and compared the energy absorption characteristics of two typical struts. The performance of the aircraft fuselage with struts of different cross sections and orientation angles were compared using PAM-CRASH software.…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness study of a civil aircraft fuselage section

Xue

Ding

Qiao

et al. 2014

Lat. Am. j. solids struct.

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This paper studies the crashworthiness characteristics of a fuselage section and its improvement. A full-scale three-dimensional finite element model of the fuselage section is developed using a nonlinear finite element code, PAM-CRASH. The simulation is implemented to determine the structural deformation and impact response in terms of peak loads and acceleration peaks at the floorlevel, deformation mode, energy absorption, and structural integrity, and then to assess the crashworthiness of the fuselage section. By partitioning the total energy dissipated, it is shown that the frames and the supports of the cargo floor play important roles in the process of energy dissipation. Based on the results, an effective approach to improve the crashworthiness of the fuselage section is presented. The paper also provides an in-depth analysis in the deformation mechanism of the fuselage section under a vertical crash, which will be helpful to effectively prevent the cabin floor from heavily damage and maintain the integrity of the fuselage section.

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Cohesive zone models and impact damage predictions for composite structures

2015

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This article surveys existing cohesive zone models (CZM) and their use in numerical simulations for analysis impacts on composite structures and predicting the damage induced. These models are used for matrix cracks and delamination. The first part of article gives the required background on failure criteria for predicting the onset of delaminations, on fracture mechanics and the various types of CZM. The second part discusses applications of CZM to several types of impact problems with composite structures. Applications for these models to other problems are briefly mentioned at the end. CZM are now part of state of the art numerical simulations with progressive damage analysis.

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Crashworthiness Study on Fuselage Section and Struts under Cabin Floor

Cited by 8 publications

References 8 publications

Crashworthiness Study of Composite Fuselage Section

Crashworthiness Study of Composite Fuselage Section

Crashworthiness study of a civil aircraft fuselage section

Cohesive zone models and impact damage predictions for composite structures

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