Probabilistic structural stability prediction

Chang, Kuang-Hua; Yu, Xiaoming; Choi, Kyung K.

doi:10.2514/6.1996-4064

Cited by 2 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Uncertainties of material properties and geometric dimensions due to manufacturing tolerances of the structural component, and the environment under which the mechanical system operates constitute the indeterministic nature of the fatigue life assessment for the structural component. A statistics-based approach that takes these uncertainties into consideration provides a more realistic and reliable assessment for the structural durability and safety 2 . Furthermore, when the structure is found unreliable, a reliability-based structural optimization (RBSO) 3 method must be used to obtain an optimal design that is reliable.…”

Section: Introductionmentioning

confidence: 99%

“…The objective of this research is to employ the probabilistic fatigue life prediction method presented in Ref. 2 Choi, K.K., Yu, X., and Chang, K.H., "A Mixed Design Approach for Probabilistic Structural Durability," Sixth AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, Bellevue, WA, September [4][5][6]1996. to support reliability-based design for structural fatigue.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A mixed design approach for probabilistic structural durability

Choi¹,

Yu²,

Chang³

1996

6th Symposium on Multidisciplinary Analysis and Optimization

Self Cite

View full text Add to dashboard Cite

In this paper, a mixed approach for probabilistic structural durability design of mechanical systems is proposed. In this approach, a deterministic design optimization that considers structural crack initiation and crack propagation lives at critical points of the structural component as design constraints is performed first. After an optimal design is obtained, a reliability analysis is performed to determine if the deterministic optimal design is reliable. If the probability of the failure of the deterministic optimal design is found unacceptable, a reliability-based design approach that employs a set of interactive design steps, such as trade-off analysis and what-if study, is used to obtain a nearoptimal design that is reliable with an affordable computational cost. A 3-D tracked vehicle roadarm is employed to demonstrate the feasibility of the proposed approach.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%