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RISA Study on the Distribution of Residual Stress Due to Surface Induction Hardening
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A finite element method (FEM) is used here to analyse the distribution of residual stresses generated by surface induction hardening. The analysis considers both transformation induced plasticity ...
Rapid Evaluation of Load-Carrying Capacity of Long-Span Bridges Using Limited Testing Vehicles
Publisher: ASCE
Abstract: Load testing is usually used to evaluate the load-carrying capacity of long-span bridges in their service life. However, a large number of calibration trucks should be arranged in complicated loading patterns to deform ...
Temperature Analysis of Involute Gear Based on Mixed Elastohydrodynamic Lubrication Theory Considering Tribo Dynamic Behaviors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An integrated model is proposed for involute gear pair combining the mixed elastodhydrodynamic lubrication (EHL) theory for finite line contact with surface temperature rise equations considering tribodynamic loading ...
Coupled Fatigue-Corrosion Failure Analysis and Performance Assessment of RC Bridge Deck Slabs
Publisher: American Society of Civil Engineers
Abstract: Coupled fatigue and corrosion is more detrimental for RC bridge deck slabs than either fatigue or corrosion separately. The main objectives of this study are to obtain a greater understanding of the deterioration mechanisms ...
Analytical Solution Under Two-Flux Approximation to Radiative Heat Transfer in Absorbing Emitting and Anisotropically Scattering Medium
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Radiative transfer in absorbing, emitting, and highly anisotropically scattering media is widely encountered in high temperature applications such as pulverized coal firing furnaces and high ...
Model Updating Using Bridge Influence Lines Based on an Adaptive Metamodel Global Optimization Method
Publisher: ASCE
Abstract: Model updating seeks to update a finite-element model to reduce discrepancies between predicted and measured data. Metamodel-based model updating using bridge influence lines is a very promising method. However, the accuracy ...
Bridge Damage Localization Using Axle Weight Time History Data Obtained through a Bridge Weigh-in-Motion System
Publisher: ASCE
Abstract: With an increase in bridge service time, damage will inevitably occur. Accurately identifying damage is of great significance to the operation and maintenance of a bridge. To realize a frequent identification of local ...
Stiffness Estimation of Girder Bridges Using Influence Lines Identified from Vehicle-Induced Structural Responses
Publisher: ASCE
Abstract: The influence line is an important static property in bridges. The shape and magnitude of the girder bridge influence line contain stiffness information for the bridge supports and beam. This research sought to directly ...
Multiorder Detection of Bridge Modal-Frequency Anomalies Considering Multiple Environmental Factors
Publisher: ASCE
Abstract: Because bridge modal frequency is inevitably influenced by environmental factors, and single-order frequency is possibly insensitive to some damage conditions, frequency anomaly detection will fail. Therefore, conducting ...
Fatigue Evaluation of Bridges Based on Strain Influence Line Loaded by Elaborate Stochastic Traffic Flow
Publisher: ASCE
Abstract: Stochastic traffic flow, as a type of repeated load, can cause serious high-cycle fatigue damage to bridges. In addition, the rough simulation of stochastic traffic flow and inappropriate analysis method of fatigue stresses ...