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RISProbabilistic Life Prediction for Reinforced Concrete Structures Subjected to Seasonal Corrosion-Fatigue Damage
Publisher: ASCE
Abstract: The coupled effect of corrosion and fatigue deteriorates the performance of reinforced concrete (RC) structures. This paper proposes a novel framework for the probabilistic life prediction of aging RC structures under ...
Predicting Corrosion Fatigue Crack Propagation Behavior of HRB400 Steel Bars in Simulated Corrosive Environments
Publisher: ASCE
Abstract: This paper systematically performed fatigue crack propagation (FCP) tests to investigate the corrosion fatigue crack propagation (CFCP) behavior of HRB400 steel bar. The fatigue loading scheme involved the constant amplitude ...
Effects of Stress Ratio and Banded Microstructure on Fatigue Crack Growth Behavior of HRB400 Steel Bar
Publisher: American Society of Civil Engineers
Abstract: This paper investigates the effects of stress ratio and microstructure on the fatigue crack growth (FCG) behavior of HRB4 steel bars widely used in concrete bridges. A constant stress–controlled FCG test with different ...
Crack Propagation-Based Fatigue Life Prediction of Corroded RC Beams Considering Bond Degradation
Publisher: ASCE
Abstract: Corrosion increases the nominal stress of reinforcing bars and accelerates the fatigue crack propagation. The stress redistribution induced by bond degradation between concrete and rebars makes the fatigue life prediction ...
Corrosion Fatigue Crack Propagation Mechanism of High-Strength Steel Bar in Various Environments
Publisher: ASCE
Abstract: This paper investigated the corrosion fatigue crack propagation mechanism of high-strength steel bar HRB400 in various corrosive environments. Fatigue crack growth (FCG) tests were conducted under different fatigue loading ...
Using In Vivo Cine and 3D Multi-Contrast MRI to Determine Human Atherosclerotic Carotid Artery Material Properties and Circumferential Shrinkage Rate and Their Impact on Stress/Strain Predictions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In vivo magnetic resonance image (MRI)-based computational models have been introduced to calculate atherosclerotic plaque stress and strain conditions for possible rupture predictions. However, ...
Stiffness Properties of Adventitia, Media, and Full Thickness Human Atherosclerotic Carotid Arteries in the Axial and Circumferential Directions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Arteries can be considered as layered composite material. Experimental data on the stiffness of human atherosclerotic carotid arteries and their media and adventitia layers are very limited. This study used uniaxial tests ...
3D Critical Plaque Wall Stress Is a Better Predictor of Carotid Plaque Rupture Sites Than Flow Shear Stress: An In Vivo MRI-Based 3D FSI Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Atherosclerotic plaque rupture leading to stroke is the major cause of long-term disability as well as the third most common cause of mortality. Image-based computational models have been ...
Lumen Irregularity Dominates the Relationship Between Mechanical Stress Condition, Fibrous-Cap Thickness, and Lumen Curvature in Carotid Atherosclerotic Plaque
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High mechanical stress condition over the fibrous cap (FC) has been widely accepted as a contributor to plaque rupture. The relationships between the stress, lumen curvature, and FC thickness ...
3D MRI-Based Anisotropic FSI Models With Cyclic Bending for Human Coronary Atherosclerotic Plaque Mechanical Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heart attack and stroke are often caused by atherosclerotic plaque rupture, which happens without warning most of the time. Magnetic resonance imaging (MRI)-based atherosclerotic plaque models ...