FREE COLLISION AND FORCED COLLISION MECHANICAL BEHAVIOR NUMERICAL ANALYSIS FOR VARIETY OF CONTACT ZONE RHEOLOGY MODELS

• Main Author: MARIO PRAMUDITA , WILSON
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/24721
• Institution: Institut Teknologi Bandung

Collision happens when there are two objects of mass that approaching each other whether in opposite direction or same direction in a relative speed. Before collision, both objects have initial kinetic energy. The quantity of the kinetic energy will affect the quantity of collision force and the damage it produced to the objects by the end of collision. <br /> <br /> <br /> There are two kinds of collision, free collision and forced collision. In free collision, there is no additional energy in the object. Only the initial kinetic energy in the object before collision. Whereas in forced collision, there is an energy input to the object from external force. <br /> <br /> <br /> We need a model to analyze the dynamic responses of the collided objects. We model the material mechanical behavior of the two collided objects of mass with rheology model. There are variety of rheology models that will be used and compared each other to determine the most suitable model to describe the collision phenomenon. These models are as follows: linear spring model, dashpot model, Kelvin-Voigt model, Maxwell model, non-linear spring model, non-linear dashpot model, and non-linear Kelvin-Voigt model. Besides, we will also compare the dynamic responses between the two kinds of collision, free collision and forced collision. For any cases of collision, we need the most suitable model to analyze the dynamic response of the collided object.