Health monitoring of composite car roof failure under effect of different impact velocity
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Mechanical Engineering Dep., College of Engineering, University of Al-Qadisiyah, Iraq
Submission date: 2023-05-29
Final revision date: 2023-09-10
Acceptance date: 2023-10-13
Online publication date: 2023-10-19
Publication date: 2023-10-19
Corresponding author
Ahmed Raee Madeh   

Mechanical Engineering Dep., College of Engineering, University of Al-Qadisiyah, Iraq
Diagnostyka 2023;24(4):2023406
During this work, the roof of the car was used as an engineering application to study and monitor the occurrence of failures under the influence of various loads. The shells are made of multilayer composite materials using epoxy resin reinforced with carbon fiber and aluminum oxide granules as reinforcing materials to increase the impact resistance that vehicles may be exposed to while driving, in addition to other loads and conditions such as vibration and constant exposure to moisture and sunlight. The simulation program was used the finite elements method through software Abaqus program in addition to the program MATLAB v.2020a to process the data obtained from the method that used in this study. The results showed that the specified failure criteria work well for predicting the overall structural response such as strain, stress, maximum force and displacement. The losses of energy of impact collision increase as an increase in impact velocity. The dissipation of energy which depend on the stress and strain distribution during elastic deformations. The effect of thickness of the lamina plays an important role in health monitoring the structure.
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