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RISTransmission X-Ray Microscope Nanoscale Characterization and 3D Micromechanical Modeling of Internal Frost Damage in Cement Paste
Publisher: American Society of Civil Engineers
Abstract: This study employed the transmission X-ray microscope (TXM) characterization and three-dimensional (3D) cohesive zone modeling (CZM) techniques to investigate the internal-frost damage in cement paste samples. The microscale ...
Investigation of Fracture Behavior of Heterogeneous Infrastructure Materials with Extended-Finite-Element Method and Image Analysis
Publisher: American Society of Civil Engineers
Abstract: Infrastructure materials are essential components of the nation’s infrastructure and transportation systems. Deteriorating infrastructures require the development of computational tools to predict fracture behavior. The ...
Tailored Extended Finite-Element Model for Predicting Crack Propagation and Fracture Properties within Idealized and Digital Cementitious Material Samples
Publisher: American Society of Civil Engineers
Abstract: This paper presents a tailored extended finite-element model (XFEM) to predict crack propagation and fracture properties within idealized and digital cementitious material samples. The microstructure of the idealized ...
Investigation of Internal Frost Damage in Concrete with Thermodynamic Analysis, Microdamage Modeling, and Time-Domain Reflectometry Sensor Measurements
Publisher: American Society of Civil Engineers
Abstract: This study investigates the internal-frost damage due to ice-crystallization pressure in the concrete pore system. The methodology integrates thermodynamic analysis and a microdamage model as well as a unique time-domain ...