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A Study on the Fatigue Reliability Assessment of Car Body for High Speed Train passing through Tunnels

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Academic year: 2021

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(1)
(2)

Action Model

Statistical Analysis of Data

Resistance Model

Uncertainty Model Structural Model

Formulation of Limit State Equation

Calculation of Failure Probability

Reliability Assessment

(3)
(4)
(5)
(6)

Setting Target Reliability β

Structural Modeling for Carbody

Structural Analysis for Carbody Subjected to Unit External Pressure

Calculation of Stress Transfer Function Statistical Data for

External Pressure Variation

Calculation of Mean and Coefficient of

Variance for characteristic

Pressure

Statistical Data for Fatigue Strength of

Material

Calculation of Mean and Coefficient of Variance for Fatigue

Constant

Formulation of Limit State Equation

Calculation of Required Stress Transfer Function

Is Stress Function greater than Required Stress

Function?

Design Change

Design Finished

No

Yes

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