动光弹原理及其在爆破理论研究中的应用.pdf

29 1 ( ) Vol. 29, N o. 1 2006 2 J. ofWuhan Uni. of Sci. Tech. ( Natural Science Edition) eb. 2006 , (, , 430081) : 介绍动光弹基本原理和常用的实验装置, 阐述动光弹应用于爆破理论研究的手段, 总结出 应力分离的 几种方法, 综述目前国内动光弹技术的 要研究方向 : 动光弹; 等差条纹; 爆破; 应力分离 + : TD235. 1 4 : A : 1672- 3090( 2006) 01- 0055- 04 Dynam ic Photoelastic M ethod and Its App lication to B lasting Research W U Chun-p ing, ZH ON G D ong-wang ( College of Science, W uhan University of Science and Technology, W uhan 430081, China) Abs tract: The principles of dynam ic photoelasticity are explained, w ith commonly-used expermi ental equip- ment described. The approaches of using photoelasticity for blasting research are discussed, while several methods of principal stress separation are summ arized and the trends of domestic research on photoelasticity re- viewed. K ey w ord s: dynam ic photoelasticity; isochromatic fringes; blasting; separation of principal stress : , , , 1 ; , [ 2, 3] , , -, , 1 , , , , - [ 1] [ 4] , : N = N ( - , h, f , v , ) ( 1) , , 1 2 t , : - ; v ; 1 2 ,