Yuan Mingduo

• Master of Engineering
• Sun Yat-sen University

This study incorporates the well-known diffuse-interface concept into the meshless smoothed particle hydrodynamics (SPH) method for compressible multiphase flow simulations. The diffuse-interface SPH method combines the merits of the diffuse-interface and SPH methods in treating material interface. The material interface location is explicitly trac...

In-situ three-point bending tests and finite element modeling based on the cohesive zone model were developed to study the stress evolution and cracking behavior of the Cr coated Zr-4 alloy for accident tolerant fuel claddings. The initiation and propagation of micro-cracks were captured by in-situ observation and predicted by the numerical simulat...

In this study, the fracture mechanisms of Cr-coated Zr4 alloy samples were studied by in-situ tensile testing with high-resolution observations. Both original sample and pre-oxidized sample were studied to study the effects of pre-oxidation on the cracking and failure behavior. For the Cr-coated Zr4 sample, with the increase of tensile strain, mult...

Chromium (Cr)-coated zirconium alloys have been considered as a promising candidate material for accident-tolerant fuel (ATF) cladding for nuclear reactors because of their superior oxidation resistance under accident conditions. However, the oxidation and diffusion behaviours that occur in the Cr coating–Zr substrate system at high temperatures si...

The cracking behavior of a Cr-coated Zr-4 alloy for accident-tolerant fuel cladding at room temperature was investigated using an in situ three-point bending test and finite element (FE) analysis. The initiation and propagation of vertical and interfacial cracks were captured in real time. Moreover, the fracture properties of the Cr-coated Zr-4 all...