• P. Ferracin
  LBNL, Berkeley, California

Superconducting magnets for particle accelerators are complex devices requiring the use of sophisticated modeling techniques to predict their performance. A complete description of the magnet behavior can only be obtained through a multi-physics approach which combines magnetic, mechanical, and electrical-thermal models. This approach is essential in particular for the next generation of magnets, which will likely implement strain sensitive conductors like Nb3Sn and will handle forces significantly larger than in the present LHC dipoles. The design of high field superconducting magnets has benefited from the integration between CAD, magnetic, and structural analysis tools allowing a precise reproduction of the magnet 3D geometry and a detailed analysis of the three-dimensional strain in the superconductor. In addition, electrical and thermal models have made possible investigating the quench initiation process and the thermal and stress conditions of the coil during the propagation of a quench. We present in this paper an overview of the integrated design approach and we report on simulation techniques aimed to predict and reproduce magnet behavior from assembly to quench.