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·310· 北京科技大学学报 1996年No.4 3 Cowperthwaite M,Williams R F.Determination of Constitutive Relationships with Multiple Gauges in Nondivergent Waves.J Appl Phys,1971,42:456 4 Grady D E.Experimental Analysis of Spherical Wave Propagation.J Geo Res,1973,78:1299 5 Seaman L.Lagrangian Analysis for Multiple Stress or Velocity Gages in Attenuating Waves. J Appl Phys,1974,45:4303 6经福谦,实验物态方程导引.北京:科学出版社,1986 Dynamic Property of Cement Stone by Lagrangian Analysis Method Chen Yeqing Yu Yalun Feng Shuyu 1)Mining Research Institute,USTB,Beijing 100083,PRC 2)China Academy of Railway Sciences,Beijing 100081,PRC ABSTRACT On the basis of stress-time curves from intens loadding experiment with light gas gun,some dynamic properties of cement stone are studied by improved Lagrangian analysis method (curved surface-fitting method),and many signifiiant conclusions,for examplle:stagnant-return phenomena of stress-strain curves,strain-rate effect and waveform dissipation are get. KEY WORDS Lagrangian analysis,curved surface-fitting,cement stone,dynamic property北 京 科 技 大 学 学 报 年 , , , , , , , 经福谦 实验物态方程 导引 北京 科 学 出版社 , 叮 介 为 凡 肋卿 , , , , , 一 , 一 , , 一 一 , 一 , 一 ,
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