Probabilistic analysis of multi-site damage in aircraft fuselages
Most aircraft fleets nowadays are operating under the concept of damage tolerance, which requires an aircraft to have sufficient residual strength in the presence of damage in one of its principal structural elements (PSE) during the interval of service inspections. The residual strength however is...
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| Veröffentlicht in: | Computational mechanics 2003-03, Vol.30 (4), p.323-329 |
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| creator | PROPPE, C |
| description | Most aircraft fleets nowadays are operating under the concept of damage tolerance, which requires an aircraft to have sufficient residual strength in the presence of damage in one of its principal structural elements (PSE) during the interval of service inspections. The residual strength however is significantly reduced due to multi site damage (MSD). In the present paper, a probabilistic framework for the computation of the failure probability is developed. The MSD problem of a PSE is considered, where the uncertainties in crack initiation and crack growth as well as yield stress and fracture toughness are described by random variables. For the crack growth calculations the finite element alternating method [1], which avoids a remeshing of the finite element problem, is used. After specifying link up and failure criteria, importance sampling is employed to obtain the probability of failure of the PSE due to MSD. |
| doi_str_mv | 10.1007/s00466-002-0408-x |
| format | Article |
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The residual strength however is significantly reduced due to multi site damage (MSD). In the present paper, a probabilistic framework for the computation of the failure probability is developed. The MSD problem of a PSE is considered, where the uncertainties in crack initiation and crack growth as well as yield stress and fracture toughness are described by random variables. For the crack growth calculations the finite element alternating method [1], which avoids a remeshing of the finite element problem, is used. After specifying link up and failure criteria, importance sampling is employed to obtain the probability of failure of the PSE due to MSD.</description><identifier>ISSN: 0178-7675</identifier><identifier>EISSN: 1432-0924</identifier><identifier>DOI: 10.1007/s00466-002-0408-x</identifier><identifier>CODEN: CMMEEE</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Aircraft ; Airframes ; Computational techniques ; Crack initiation ; Crack propagation ; Damage tolerance ; Exact sciences and technology ; Failure ; Finite element method ; Finite-element and galerkin methods ; Fracture mechanics (crack, fatigue, damage...) ; Fracture mechanics, fatigue and cracks ; Fracture toughness ; Fundamental areas of phenomenology (including applications) ; Fuselages ; Importance sampling ; Mathematical methods in physics ; Multiple site damage ; Physics ; Probabilistic analysis ; Probability theory ; Random variables ; Residual strength ; Solid mechanics ; Statistical analysis ; Structural and continuum mechanics ; Structural members ; Yield stress</subject><ispartof>Computational mechanics, 2003-03, Vol.30 (4), p.323-329</ispartof><rights>2003 INIST-CNRS</rights><rights>Computational Mechanics is a copyright of Springer, (2003). 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The residual strength however is significantly reduced due to multi site damage (MSD). In the present paper, a probabilistic framework for the computation of the failure probability is developed. The MSD problem of a PSE is considered, where the uncertainties in crack initiation and crack growth as well as yield stress and fracture toughness are described by random variables. For the crack growth calculations the finite element alternating method [1], which avoids a remeshing of the finite element problem, is used. After specifying link up and failure criteria, importance sampling is employed to obtain the probability of failure of the PSE due to MSD.</description><subject>Aircraft</subject><subject>Airframes</subject><subject>Computational techniques</subject><subject>Crack initiation</subject><subject>Crack propagation</subject><subject>Damage tolerance</subject><subject>Exact sciences and technology</subject><subject>Failure</subject><subject>Finite element method</subject><subject>Finite-element and galerkin methods</subject><subject>Fracture mechanics (crack, fatigue, damage...)</subject><subject>Fracture mechanics, fatigue and cracks</subject><subject>Fracture toughness</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Fuselages</subject><subject>Importance sampling</subject><subject>Mathematical methods in physics</subject><subject>Multiple site damage</subject><subject>Physics</subject><subject>Probabilistic analysis</subject><subject>Probability theory</subject><subject>Random variables</subject><subject>Residual strength</subject><subject>Solid mechanics</subject><subject>Statistical analysis</subject><subject>Structural and continuum mechanics</subject><subject>Structural members</subject><subject>Yield 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C</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Computational 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The residual strength however is significantly reduced due to multi site damage (MSD). In the present paper, a probabilistic framework for the computation of the failure probability is developed. The MSD problem of a PSE is considered, where the uncertainties in crack initiation and crack growth as well as yield stress and fracture toughness are described by random variables. For the crack growth calculations the finite element alternating method [1], which avoids a remeshing of the finite element problem, is used. After specifying link up and failure criteria, importance sampling is employed to obtain the probability of failure of the PSE due to MSD.</abstract><cop>Heidelberg</cop><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s00466-002-0408-x</doi><tpages>7</tpages></addata></record> |
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| ispartof | Computational mechanics, 2003-03, Vol.30 (4), p.323-329 |
| issn | 0178-7675 1432-0924 |
| language | eng |
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| subjects | Aircraft Airframes Computational techniques Crack initiation Crack propagation Damage tolerance Exact sciences and technology Failure Finite element method Finite-element and galerkin methods Fracture mechanics (crack, fatigue, damage...) Fracture mechanics, fatigue and cracks Fracture toughness Fundamental areas of phenomenology (including applications) Fuselages Importance sampling Mathematical methods in physics Multiple site damage Physics Probabilistic analysis Probability theory Random variables Residual strength Solid mechanics Statistical analysis Structural and continuum mechanics Structural members Yield stress |
| title | Probabilistic analysis of multi-site damage in aircraft fuselages |
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