Pressure Testing of a Minimum Gauge PRSEUS Panel

Lovejoy, Andrew J.; Rouse, Marshall; Linton, Kim A.; Li, Victor P.

doi:10.2514/6.2011-1813

Cited by 22 publications

(20 citation statements)

References 6 publications

(10 reference statements)

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“…The first two values matched exactly the levels used in the pristine panel testing. 7 Note, that for pressure loadings it is customary to designate double of the limit load as the ultimate load, while for tension loadings the ratio between the two loading levels is typically 1.5.…”

Section: A Finite Element Modelingmentioning

confidence: 99%

“…As indicated before, an existing Nastran FE model of the pressure panel used in its pristine configuration studies 7 was made available and, to expedite FE analysis development, served as a precursor for developing the repaired panel model. By analogy to the previously detailed Abaqus model, four-node and three-node shell elements CQUAD4 and CTRIA3 were used instead Abaqus S4R5 and S3 elements, respectively.…”

Section: A Finite Element Modelingmentioning

confidence: 99%

“…The overall test set up of a recent pristine pressure panel test 7 is presented in Figure 16. The coordinate system presented in Figure 16 is consistent with the one presented in Figure 1a and throughout the tension panel discussion in that sense that stringers are oriented along the X-axis and frames along the Y-axis.…”

Section: Pressure Panel Repairmentioning

confidence: 99%

“…Use of two distinct FE packages originated mainly from the fact that the tension panel model was developed first using Abaqus in the course of the repair design activity. Pressure panel analysis was conducted after freezing the repair design, and to reduce FE model development effort, an existing Nastran model of the pristine pressure panel 7 was obtained and modified to a damaged and repaired configuration. In general, in the iterative process of arriving to the most efficient repair design, several FE model variations were developed in the course of the study based on the same methodology as described in the following section.…”

Section: Finite Element Analysis Tools and Their Validationmentioning

confidence: 99%

“…he primary structural concept being pursued as an important component of next generation airframe technology under the Environmentally Responsible Aviation (ERA) Program at NASA is the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS), [1][2][3][4][5][6][7][8] illustrated in Figure 1. This concept is being developed in a partnership between NASA and The Boeing Company for application to future transport aircraft with the goal of developing lighter structure so that the aircraft will require less fuel and produce fewer pollutants.…”

Section: Introductionmentioning

confidence: 99%

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Repair Concepts as Design Constraints of a Stiffened Composite PRSEUS Panel

Przekop

2012

53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

8
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22
0

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A design and analysis of a repair concept applicable to a stiffened thin-skin composite panel based on the Pultruded Rod Stitched Efficient Unitized Structure is presented. The concept is a bolted repair using metal components, so that it can easily be applied in the operational environment. The damage scenario considered is a midbay-to-midbay saw-cut with a severed stiffener, flange and skin. In a previous study several repair configurations were explored and their feasibility confirmed but refinement was needed. The present study revisits the problem under recently revised design requirements and broadens the suite of loading conditions considered. The repair assembly design is based on the critical tension loading condition and subsequently its robustness is verified for a pressure loading case. High fidelity modeling techniques such as mesh-independent definition of compliant fasteners, elastic-plastic material properties for metal parts and geometrically nonlinear solutions are utilized in the finite element analysis. The best repair design is introduced, its analysis results are presented and factors influencing the design are assessed and discussed.

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Section: A Finite Element Modelingmentioning
confidence: 99%

Section: Pressure Panel Repairmentioning
confidence: 99%

Section: Finite Element Analysis Tools and Their Validationmentioning
confidence: 99%

Section: Introductionmentioning
confidence: 99%

See 3 more Smart Citations
Repair Concepts as Design Constraints of a Stiffened Composite PRSEUS Panel
Przekop
¹

2012
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
8
0
22
0
View full text Add to dashboard Cite
A design and analysis of a repair concept applicable to a stiffened thin-skin composite panel based on the Pultruded Rod Stitched Efficient Unitized Structure is presented. The concept is a bolted repair using metal components, so that it can easily be applied in the operational environment. The damage scenario considered is a midbay-to-midbay saw-cut with a severed stiffener, flange and skin. In a previous study several repair configurations were explored and their feasibility confirmed but refinement was needed. The present study revisits the problem under recently revised design requirements and broadens the suite of loading conditions considered. The repair assembly design is based on the critical tension loading condition and subsequently its robustness is verified for a pressure loading case. High fidelity modeling techniques such as mesh-independent definition of compliant fasteners, elastic-plastic material properties for metal parts and geometrically nonlinear solutions are utilized in the finite element analysis. The best repair design is introduced, its analysis results are presented and factors influencing the design are assessed and discussed.
show abstract

A deformation criterion of pressurized non-circular cross-section cabin and its effects on cruise performance of BWB civil aircraft
GUO,
CHEN,
YAO
2024
Chinese Journal of Aeronautics
0
0
0
0
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Assessment of damage containment features of a full-scale PRSEUS fuselage panel
Bergan
¹
,
Bakuckas²,
Awerbuch
³

et al. 2014
Composite Structures
25
1
11
0
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Pressure Testing of a Minimum Gauge PRSEUS Panel

Cited by 22 publications

References 6 publications

Repair Concepts as Design Constraints of a Stiffened Composite PRSEUS Panel

Repair Concepts as Design Constraints of a Stiffened Composite PRSEUS Panel

A deformation criterion of pressurized non-circular cross-section cabin and its effects on cruise performance of BWB civil aircraft

Assessment of damage containment features of a full-scale PRSEUS fuselage panel

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