Journal article

AN INNOVATIVE PROCEDURE FOR ESTIMATING CONTACT FORCE DURING IMPACT

YI YANG, JING SUN, NELSON LAM, LIHAI ZHANG, EMAD GAD

International Journal of Applied Mechanics | Imperial College Press | Published : 2014

Abstract

Certain types of damage generated by the impact of a solid object are correlated with the amount of force that is localized around the area of contact between the impactor and the surface of the target. The stiffer the impactor, the higher the contact force when the amount of impulse delivered by the impact is held constant. Thus, realistic simulations of the contact force by finite element analysis (FEA) require representative, and detailed, information of the dynamic compressive properties of both the impactor and the target. In situations where relevant properties of the impactor material have not been documented, the estimation of contact force is filled with uncertainties. In addressing..

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