Crashworthy Composite Fuselage Section Concept for Next Generation General Aviation

Maia, Leandro Guimarães; Oliveira, Paulo Henriques Iscold Andrade de

doi:10.4271/2005-01-4011

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…A lot of interest has been expressed in unconventional wing designs, but less focus has been directed towards the fuselage design. Researching the field of unconventional fuselages identifies an industry-wide focus on larger configurations (7,8) , however there are a few studies looking at remodelling the conventional 'tube' (9,10) . The evolution of fuselage design is an important area for development in future aviation endeavours, and one which should not be forgotten.…”

Section: Why An Oval Shaped Fuselage?mentioning

confidence: 99%

Evolving fuselage designs by incorporating SHM technologies

Mistry

Mofakhami²,

Pinsonnault

2011

Aeronaut. j.

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Research efforts at Bombardier Aerospace have investigated design constraints that need to be addressed when considering the design of a future unconventional fuselage concept. Using a composite design platform integrated with structural health monitoring (SHM) technologies, the design space is broadened and there are many more unknowns to investigate from our current knowledge of the subject to date. The principal idea is to identify structural zones and quantify stress levels in areas of concern, referred to as ‘hot-spots’, by integrating an SHM system at a conceptual design level. This new concept would require an assessment of benefits and detriments in order to evaluate the certification processes, impact on maintenance, operation, and ownership costs. The integration of an SHM system using onboard sensors introduces many challenges, such as the requirement for multiple sensors in the structure and additional systems weight. The investigation shows how the aircraft structural design would be impacted and how design, stress, supply-chain, manufacturing, and the systems departments need to be harmonised in order to design a feasible and integrated SHM-structural fuselage concept.

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Section: Why An Oval Shaped Fuselage?mentioning

confidence: 99%

Evolving fuselage designs by incorporating SHM technologies

Mistry

Mofakhami²,

Pinsonnault

2011

Aeronaut. j.

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show abstract

“…Fiber composite materials with epoxy matrix do not have a plastic deformation phase [14], leading to more complex kinetic energy absorption mechanisms during the impact events involving the interaction between the different composite phases. Complex structures, such as fuselages, transmit the load from the impact point to the whole structure, resulting in a more extended and difficult to predict absorption of the kinetic energy [15][16][17][18][19][20]. Several works on civil transport aircraft crashworthiness have highlighted the influence of the stiffness of the floor of the cabin and of the cargo subfloor components on the energy absorption behavior [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

An Insight on the Crashworthiness Behavior of a Full-Scale Composite Fuselage Section at Different Impact Angles

et al. 2019

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In the present paper, advanced numerical methodologies have been adopted to investigate the influence of impact angle on the crashworthiness behavior of a composite fuselage section. The analyzed fuselage section, made of unidirectional fiber-reinforced material, woven fabric material, and aluminum material, is representative of a regional aircraft fuselage. Two different angles of impact with rigid ground have been investigated and reported: Perpendicularly to the ground and with a pitch angle of 3 degrees with respect to the ground. The adopted numerical models have been preliminarily validated with experimental data from a drop test on a full-scale fuselage section, in terms of deformations and failure location and progression. The correlation between the numerical model and the experimental test has enabled evaluation of the effect of the impact angle on the deformation and damage in the sub-cargo floor area.

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“…The term 'crashworthiness' provides a measure of the ability of a structure and any of its components to protect the occupants from injury during a survivable crash, In a broad speaking, it includes such considerations as maintaining the structural integrity of the fuselage; attenuating the crash forces acting on occupants; preventing massive items from dropping off and injuring occupants; providing convenient exits for occupants to escape from crash; and reducing postcrash fire, submersion, and other hazardous conditions that may be encountered in an accident [2].…”

Section: Introductionmentioning

confidence: 99%

Improved Fuselage Design for Crashworthiness

Peng

Wan

Zhao

2012

AMM

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The principles of fuselage design for crashworthiness are analyzed based on investigating the theory of energy and momentum to the impact of an aircraft’s crash on occupants in order to increase the chance of survival for occupants. It indicates that minimizing the amount of bumped soil leads to the reduction of resistance from soil to the aircraft while crashing along the y-axis direction (horizontal) and increasing the energy absorption improves the crashworthiness of the aircraft along the z-axis direction (vertical). The deformation of the aircraft cabin and the acceleration of the occupants during a crash are the two most important factors to consider for crashworthiness. The improved fuselage design for crashworthiness is proposed for both y-axis and z-axis directions. Suggestions for the crashworthy fuselage design are given in order to obtain high performance of crashworthiness design, which is meaningful to the future design for fuselage’s crashworthiness.

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Crashworthy Composite Fuselage Section Concept for Next Generation General Aviation

Cited by 6 publications

References 6 publications

Evolving fuselage designs by incorporating SHM technologies

Evolving fuselage designs by incorporating SHM technologies

An Insight on the Crashworthiness Behavior of a Full-Scale Composite Fuselage Section at Different Impact Angles

Improved Fuselage Design for Crashworthiness

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