压剪复合平板冲击加载技术进展及其应用

自20世纪70年代末发明压剪炮以来, 压剪复合冲击加载实验技术和诊断技术有了长足进展, 应用也日益广泛.由于压剪联合加载波直接反映了材料的动态剪切特性, 对于认识材料的屈服、损伤演化、失效、相变、界面滑移等动态行为和机理, 构筑更全面的本构模型能够提供必要的附加信息.本文主要讨论气炮实验中压剪复合应力波的产生方式, 诊断技术, 以及在压剪复合塑性波和动高压本构模型、聚合物压剪冲击行为、剪切波跟踪法(SWT)和水泥基复合材料的损伤和失效、界面动摩擦行为、冲击相变、动态损伤和断裂等方面的研究与应用进展. 

PROGRESS AND APPLICATION OF COMBINED COMPRESSION AND SHEAR WAVE LOADING TECHNIQUE

Since the invention of pressure/shear gas gun in the late 1970's,great advances have been achieved in the field of combined pressure and shear impact loading and diagnostic techniques.The combined pressure and shear waves can disclose the dynamic shear property of materials directly,which offers additional information of yield,damage evolution,failure,phase transition,interface sliding etc.With respect to the dynamic behavior and mechanism of materials and the complete constitutive equations.This article summarizes the production methods of combined compression-shear plane waves,the measurement techniques,and their applications and advances in the investigation of pressure/shear plastic waves,dynamic high pressure constitutive equations, impact behavior of polymers,the shear wave tracing technique(SWT)and the failure of cement composites, dynamic friction response of interface,shock induced phase transition,and dynamic damage and fracture.