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RISStrain Energy-Based Fatigue Life Evaluation of Deck-to-Rib Welded Joints in OSD Considering Combined Effects of Stochastic Traffic Load and Welded Residual Stress
Publisher: American Society of Civil Engineers
Abstract: Welded residual stress and stochastic traffic at the deck-to-rib welded joints in the orthotropic steel deck (OSD) of bridges highly affects the fatigue life of bridges. This study presents a strain energy-based method to ...
Fatigue Damage Evaluation of Orthotropic Steel Deck Considering Weld Residual Stress Relaxation Based on Continuum Damage Mechanics
Publisher: American Society of Civil Engineers
Abstract: Weld residual stresses (WRSs) in orthotropic steel decks (OSDs) contribute prominently to fatigue damage. WRSs relax during the accumulation of fatigue damage. However, their effects are ignored in conventional methods of ...
Influence of Asphalt Pavement Conditions on Fatigue Damage of Orthotropic Steel Decks: Parametric Analysis
Publisher: American Society of Civil Engineers
Abstract: The function of asphalt pavement on orthotropic steel decks (OSDs) is to transmit and disperse the concentrated wheel loading to the bridge structure and to strengthen the local stiffness of the OSD. Fatigue damage in ...
Development of a Constant Force Suspended Backpack for Variable Load and Variable Speed Locomotion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Studies have shown that the suspended backpack, a wearable device allowing the backpack moving relative to user’s back, can effectively reduce the accelerative vertical force of the backpack to reduce the metabolic cost ...
Development of a Constant Force Suspended Backpack for Variable Load and Variable Speed Locomotion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Studies have shown that the suspended backpack, a wearable device allowing the backpack moving relative to user’s back, can effectively reduce the accelerative vertical force of the backpack to reduce the metabolic cost ...