1. FIELD AND ANALYTICAL INVESTIGATION OF A 3D DYNAMIC TRAIN-TRACK INTERACTION MODEL AT CRITICAL SPEEDS Open Access Author: Gao, Yin Title: FIELD AND ANALYTICAL INVESTIGATION OF A 3D DYNAMIC TRAIN-TRACK INTERACTION MODEL AT CRITICAL SPEEDS Graduate Program: Civil Engineering Keywords: train-track interactiontrack dynamicsfield validationcritical speedhanging tiecrosstie movement File: Download Yin_Gao_Dissertation.pdf Committee Members: Hai Huang, Dissertation Advisor/Co-AdvisorShelley Marie Stoffels, Committee Chair/Co-ChairTong Qiu, Committee MemberPatrick Joseph Fox, Committee MemberJamal Rostami, Outside MemberHai Huang, Committee Chair/Co-Chair