Peridynamic investigation on thermal fracturing behavior of ceramic nuclear fuel pellets under power cycles

The impact of azimuthally asymmetric carbon deposition upon pellet-clad mechanical interaction in advanced gas reactor fuel

“…In addition, the motion of the pellet fragments might be reduced due to increased difficulty of pellet sliding. One avenue currently being explored for the fracture of fuel pellets is peridynamics [37]- [39]. Peridynamics is designed to predict the complicated crack patterns frequently observed in PIE; crack patterns are not idealised and do not need to be imposed at the start of the simulation.…”

Modelling the effects of water chemistry and flowrate on clay erosion

“…transport phenomena in discontinuous or highly heterogeneous systems, and stress induced corrosion (Bobaru and Duangpanya, 2012;Chen and Bobaru, 2015;Jafarzadeh et al, 2019a and2019b). Furthermore, PD has been used successfully in different areas, such as hydraulic fracturing (Ouchi et al, 2015), thermally-induced cracking (Oterkus et al, 2014;Wang et al, 2018Wang et al, & 2019, dynamic fracture (Rabczuk and Ren, 2017;Ren et al,2017;Wang et al, 2016, and chemical transport in unsaturated fracture systems (Yan et al, 2020). The present model aims to incorporate the fundamental physical and chemical interactions controlling the erosion, with PD formulations of expansion, detachment of diluted particles and detached particles transport processes.…”

Study on Thermally Induced Crack Propagation Behavior of Functionally Graded Materials Using a Modified Peridynamic Model

“…Zhang and Qiao [30] presented an extended OSB-PD model to predict damage growth of bimaterial structures. Wang et al [31] developed a coupled BB-PD thermomechanical model to study thermal cracking behavior of ceramic nuclear pellet under power cycles.…”