target_sources(${PROJECT_NAME} PRIVATE
        LinearHardeningNM.cpp
        NM2D1.cpp
        NM2D2.cpp
        NM2D3.cpp
        NM3D1.cpp
        NM3D2.cpp
        NM3D3.cpp
        NonlinearNM.cpp
        SectionNM.cpp
        SectionNM2D.cpp
        SectionNM3D.cpp
        SurfaceNM2D.cpp
        SurfaceNM3D.cpp
        VAFNM.cpp
)
