What is GMRA?

GMRA likely refers to General Multiscale Relaxed Atomistic (GMRA) methods. These are a class of computational techniques used to simulate materials at multiple scales, bridging the gap between atomistic simulations (which are computationally expensive) and continuum mechanics (which can lack atomistic detail). They aim to achieve efficiency by using atomistic detail only where needed and coarser, continuum representations elsewhere, while ensuring seamless coupling between these regions. GMRA methods are commonly used to study materials deformation, fracture, and other phenomena where atomistic details influence macroscopic behavior.