Abstract Cracks, including radial and circumferential cracks, will appear on the surface of the glass material after the head impacts on the windshield. The fracture characteristics of a windshield are widely recognized as among the most important factors in automotive crashworthiness. The crack profiles (e.g., length and pattern) on the windshield material provide critical information regarding impact speed (which is extremely useful in accident reconstruction), vehicle crashworthiness, and insights into improving pedestrian and passenger protection. This situation has motivated us to study the propagation characteristics of a crack induced by low-speed head impact on a windshield glass material. In previous studies on impact on windshield glass, automotive engineering researchers frequently avoid the explicit simulation of crack propagation due to the intrinsic complexity of the numerical analysis of cracking.
Numerical Simulation Based on XFEM
2018-11-04
35 pages
Article/Chapter (Book)
Electronic Resource
English
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