Welcome to Journal of Automotive Safety and Energy,

Journal of Automotive Safety and Energy ›› 2010, Vol. 1 ›› Issue (4): 288-291.DOI: 10.3969/j.issn.1674-8484.2010.04.006

• Automotive Safety • Previous Articles     Next Articles

Energy absorption characteristics of PVB windshield subjected#br# to human head impact

LIU Bohan, ZHU Mengyi, SUN Yueting, XU Jun, LI Yibing*   

  1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  • Received:2010-10-23 Online:2010-12-20 Published:2010-12-20
  • Contact: 李一兵,教授。E-mail :liyb@tsinghua.edu.cn E-mail:liubh09@mails.tsinghua.edu.cn
  • About author:刘博涵(1987—),男( 汉),河北,硕士研究生。E-mail :liubh09@mails.tsinghua.edu.cn

Abstract: In traffic accidents, the energy absorption ability of windshield has an important influence on the protection of human
head. Quasi-static compression test with polyvinyl butyral (PVB) laminated glass was carried out to acquire its stress-strain
relationship. With the test result embedded, finite element model was established using Ls-Dyna. Mechanic behavior of the PVB
laminated windshield under human head impact was studied, with kinetic absorptance of the windshield defined to investigate the
absorption ability of the windshield for different impact conditions. The results show that the windshield can absorb more energy
with impact velocities of 5—7.5 m/s and impact angles of 15°—45°, while the impact position has slight influence.

Key words: vehicle-pedestrian accident, polyvinyl butyral (PVB), laminated windshield, energy absorption characteristics, compression test, finite element method

CLC Number: