Abstract—

Tempered glass is a transparent material that can withstand various shocks and constant loads, which is widely used in the field of safety protection. This manuscript presents the determination of Johnson–Holmquist (JH-2) model parameters for tempered glass and investigates the effect of strain rate on its strength through quasi-static and dynamic compression tests. The hydrostatic tensile pressure was indirectly determined via split tensile tests, and literature data were employed to calculate the value of HEL and EOS. The JH-2 model accurately predicted the real shapes of strain waves in the input and output bar of SHPB tests and was capable of describing the mechanical behavior of the brittle material from elasticity to fracture. The determined parameters for tempered glass were validated to represent the response to shock and impact loads.

中文翻译：

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冲击载荷下钢化玻璃的 Johnson–Holmquist 模型参数确定

摘要-

钢化玻璃是一种可以承受各种冲击和恒定载荷的透明材料，广泛应用于安全防护领域。本手稿介绍了钢化玻璃 Johnson–Holmquist (JH-2) 模型参数的确定，并通过准静态和动态压缩测试研究了应变率对其强度的影响。通过劈裂拉伸试验间接测定静水拉伸压力，并利用文献数据计算HEL和EOS值。JH-2模型准确预测了SHPB试验输入和输出条中应变波的真实形状，能够描述脆性材料从弹性到断裂的力学行为。所确定的钢化玻璃参数经过验证，可以代表对冲击和冲击载荷的响应。