Simulator Collection for Atomic to Continuum Scales (SCACS)

Engineers designing semiconductors, fusion reactors, spacecraft and advanced electronics need to know how heat and electricity will move through materials, at every microscopic location where a defect, grain boundary or interface could trigger failure. SCACS, developed by scientists at Los Alamos National Laboratory, delivers that insight by connecting two worlds that have long been disconnected: the atomic-scale physics that governs true material behavior and the continuum-scale engineering models used to design real devices. Built on novel atomic-site-projected conductivity methods and accelerated through graph neural networks, SCACS predicts spatially varying, direction-dependent thermal and electrical transport across large million-atom systems, giving material design Engineers a physi