JH2模型参数确定及汽车前风挡玻璃冲击破坏数值模拟  

Parameter Determination of JH-2 Model and Numerical Simulation of Impact-induced Fracture of Automotive Front Windshield Glass

作　　者：罗浩 汪舟[1,2,3] 王晓丽[1,2] 孙文革 李路瑶 日孜完古丽[3] 田德兴[1,2] 马利东 陶海征[5] LUO Hao;WANG Zhou;WANG Xiao-li;SUN Wen-ge;LI Lu-yao;Riziwanguli;TIAN De-xing;MA Li-dong;TAO Hai-zheng(School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Parts Technology of Hyundai Motor,Wuhan University of Technology,Wuhan 430070,China;School of Intelligent Transportation,Xinjiang Vocational University,Urumqi 830013,China;School of Intelligent Manufacturing,Xinjiang Vocational University,Urumqi 830013,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学汽车工程学院,武汉430070 [2]武汉理工大学现代汽车零部件湖北省重点实验室,武汉430070 [3]新疆职业大学智慧交通学院,乌鲁木齐830013 [4]新疆职业大学智能制造学院,乌鲁木齐830013 [5]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《武汉理工大学学报》2024年第9期1-10,共10页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(52172007)。

摘　　要：研究旨在探索汽车前风挡玻璃在冲击载荷下的破坏历程及力学响应。通过建立JH2本构模型和基于ABAQUS软件的有限元模型,详细分析了汽车前风挡玻璃在冲击载荷下动态力学性能。利用冲击球头加速度时间历程曲线及裂纹形貌验证模型的精确性和可靠性。研究发现:保持玻璃厚度不变时,上层玻璃厚度为2.4 mm、下层为1.6 mm的前风挡玻璃表现出较优的冲击破坏性能。此外,PVB层的厚度选择上,0.38 mm和0.76 mm是相对合适的选项,不宜选择过大的数值。与强度较高的玻璃相比,强度较低的玻璃能更有效地保护行人。而增加PVB材料的强度可以有效改善前风挡玻璃的冲击破坏性能。This study aims to explore the failure process and mechanical response of automotive laminated glass windshields under impact loading.By establishing the JH2 constitutive model and a finite element model based on ABAQUS software,the dynamic mechanical properties of automotive laminated glass windshields under impact loading were analyzed in detail.The accuracy and reliability of the models were verified using the acceleration-time history curve of the impactor and crack morphology.The study found that for constant glass thickness,a windshield with an upper layer thickness of 2.4 mm and a lower layer thickness of 1.6 mm demonstrated superior impact resistance.Additionally,for the PVB layer thickness,0.38 mm and 0.76 mm were found to be relatively suitable options,with excessively large values not recommended.Compared to glass with higher strength,glass with lower strength can more effectively protect pedestrians.Furthermore,increasing the strength of the PVB material can effectively improve the impact resistance performance of automotive laminated glass windshields.

关 键 词：汽车前风挡玻璃 冲击破坏数值模拟 JH2本构模型 玻璃抗冲击性能 

分 类 号：TQ171[化学工程—玻璃工业]