We propose an advanced digital twin of artifact systems (DTAS) in which physical and numerical models of structural materials at several time scales and length scales are constructed and integrated, while monitoring and inspection data of structural materials are used as input parameters. As DTAS can reproduce the current state of structural materials and predict their degradation through their service life, it can improve the resilience and give plasticity to artifact systems. A portion of the results rela...
英字タイトル:
A digital-twin of artifact systems by synthesizing multiscale modeling and monitoring

In many cases, the function loss by fatigue and fracture is considered as the ultimate condition of the artificial structure. While various CAE technologies have been developed, a high-precision calculation algorithm has been developed for material damage during repeated loading, which is assumed to be difficult to describe in a digital twin in a computer virtual space. To make high precision evaluation, material damage from cyclic pre-strain is investigated. Then, material damage depends on not only equiva...
英字タイトル:
Construction of a meso-space scale model for constructing a high-precision damage estimation rule