Code for Peng Zhang, Xianqiao Wang, and Keke Tang, An energy-based differentiable finite element framework for elastic and path-dependent elastoplastic solids, Finite Elements in Analysis and Design 262, 104647 (2026).
Each benchmark is a single-file script: *_feinn*.py is the energy-based differentiable finite element solver (Python) and *_fem*.jl is the corresponding finite element reference (Julia).