%0 Journal Article %A Chen, Panyu %A Mateos González, Álvaro %A Mertz, Laurent %T An elementary approach based on variational inequalities for modeling a friction-based locomotion problem %D 2025 %@ 0893-9659 %U https://hdl.handle.net/20.500.14352/119345 %X We propose an elementary proof based on a penalization technique to show the existence and uniqueness of the solution to a system of variational inequalities modeling the friction-based motion of a two-body crawling system. Here for each body, the static and dynamic friction coefficients are equal. %~