Crack spacing is a governing parameter in widely used crack width calculation models. Axial tensile experiments are conducted to examine the behavior of reinforced concrete specimens with multiple reinforcement bars. To reduce time, cost, and labor experiments, nonlinear finite element simulations used. In this study, 3D non-linear simulation models have been developed smeared cracking approach...

Criteria for progressive debonding at the fiber/mattix interface with friction along the debonded interface are considered for fiber-reinfoxed ceramic composites. The energy-based criterion is adopted to analyze the debond length, the crack-opening displacement, and the displacement of the composite due to interfacial debonding. The analytical solutions are identical to those obtained from the ...

The fatigue life of tubular joints commonly found in offshore industry is not only dependent on the value of hot-spot stress (HSS), but is also significantly influenced by the through-thethickness stress distribution characterized by the degree of bending (DoB). The determination of DoB values in a tubular joint is essential for improving the accuracy of fatigue life estimation using the stress...

One of the key damage observations in modern reinforced concrete (RC) frame buildings, damaged following 2010/2011 Canterbury and 2016 Kaikoura earthquakes, was localised cracking at beam-column interface capacity-designed beams. The beams due to curtailed longitudinal bars interface. Following these observations, without experimental data justify desirable seismic performance, controlled by we...

A novel method for preparing and testing bending specimens in-situ the TEM has been developed. This method provides high visibility of the crack front and its associated plastic zone. This is significant because energy release rates can now be calculated at many points throughout the test based on crack tip opening displacement (CTOD), crack opening angle (COA), and crack advance. Further refin...

In this work, the plastic deformation mechanisms responsible for mechanical properties and fracture toughness in nanotwinned (NT) magnesium is studied by molecular dynamics (MD) simulation. The influence of twin boundary (TBs) spacing and crack position on deformation behaviors are investigated. The microstructure evolution at the crack tip are not exactly the same for the left edge crack (LEC)...

Under low confinement axial compression, the failure of brittle rock is mainly caused by tensile fracture. Many scholars adopt sliding crack as an idealized model to present intrinsic mechanism but due complex configuration crack, its stress intensity factor (SIF) calculation has always been a difficult problem. In this study, improved proposed; in context linear elastic fracture mechanics (LEF...