Source: https://www.researchgate.net/profile/Dong-Wang-110/publication/237152531_Large-deformation_finite_element_analysis_of_pipe_penetration_and_large-amplitude_lateral_displacement/links/00b7d5389bd7e55fdc000000/Large-deformation-finite-element-analysis-of-pipe-penetration-and-large-amplitude-lateral-displacement.pdf