Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Explosion and Shock Waves》 1989-03
Add to Favorite Get Latest Update

DYNAMIC RESPONSE OF RIGID-PLASTIC CANTILEVER BEAMS IN VISCOUS MEDIUM UNDER IMPULSIVE LOADINGS

Zhang Yuan(Department of Mechanics, Peking University)  
Dynamic response of rigid-perfect plastic cantilever beams resting upon viscous medium is studied. It is assumed that the reaction of the medium is a force with an intensity proportional tq the n-th power of the deflection velocity. For general end dynamic loading. it is found that there is a necessary condition for the existence of a complete solu- tion of infinitesimal deflection response. Both mode and complete solutions are found in the case of n=1. Several cases of impulsive loading (rectangular pulse, linearly reduced pulse and instantaneous pulse), which is added on the free end of the beam, are discussed in detail. The results are compared with those without medium. The effects of the medium to the kinematic deformation forms of the beam, the final end deflection, and the energy absorbed by the medium are also given.Two main conclusions of this papre are: first, the finaf end deflection of the beam in dynamic response is very sensitive to the existence of viscous medium, that is. very weak viscosity can make the deflection reducing a lot And the sensitivity is increased with the intensity of the impulsive load; the second is that although the kinematic deformation form is mainly determined by the load intensity and the shape tin which way it is applied),the viscous medium does have influences in some cases. When linearly reduced pulse is applied at the end of the beam, for example, there exists one kinematic deformation mode which is not appeared without the medium.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Liu Fulin (Liaoning University);AN APPROXIMATE SOLUTION OF THE PLASTIC DYNAMIC RESPONSE OF CYLINDRICAL SHELLS UNDER IMPACT LOADING ON A MEDIAL CROSS SECTION[J];Acta Armamentarii;1992-01
2 Liu Fulin(Liaoning University);THE EFFECT OF DAMPING MEDIUM ON THE PLASTIC DYNAMIC RESPONSE OF A SHORT SHELL UNDER HIGH LOAD[J];Acta Armamentarii;1994-01
3 Chen Fang  Ma Xiaoqing  Wang Peng  (National Key Laboratory for Prevention and Control of Explosive Disasters, School of Mechatronic Engineering, Beijing Institute of Technology, Beijing, 100081 ) (Institute of Mechanics Chinese Academy of Sciences );A STUDY ON PARAMETERS OF A DEFORMABLE DIRECTIONAL WARHEAD[J];Acta Armamentarii;2004-06
4 Ren Xueping; Wang Lianzhong; Qi Lehua(Material Science and Engineering School, UST Beijging.Beijging 100083,China; Department of Mechanical Engineering, Northwest Polytchnical University, Xian 710072,China);Melt-Penetrating Process and Penetration[J];JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING;1997-05
5 ZHOU Rui, FENG Shun shan, WU Cheng (School of Mechano Electronics Engineering, Beijing Institute of Technology, Beijing100081, China);A Study on the Rupturing Effects upon a Metal Plate Under the Contact Explosion of Linear Explosive[J];Journal of Beijing Institute of Technology;2001-04
6 Ning Jianguo(Department of Engineering Safety,Beijing Institute of Technology,Beijing 100081)Yang Guitong(Institute of Applied Mechanics,Taiyuan University of Technology,Taiyuan 030024));Failure Analysis of ElasticPlastic Thin Spherical Shells Impacted by a FlatNose Rigid Missile[J];JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY;1997-05
7 HU Deng-gao~1,SUN Bao-ping~2,CHEN Yun-long~3,HE Shun-kang~4(1.Zhenjiang Watercraft Institute of PLA,Zhenjiang 212003,China;2.PLA the 65639 Troop,Fushun 113126,China;3.Engineer Military Representative Office of the General Armaments Department in Shanghai Area,Shanghai 200031,China;4.Yaan Military Subarea,Yaan 625000,China);Ascertainment on Charge Amout and Source of Blasting in Accidents[J];Blasting;2006-01
8 Liu Fulin(Liaonining University );THE APPLICATION OF LEAST SQUARE METHOD ON THE PLASTIC DYNAMIC RESPONSE OF THIN PLATES[J];Explosion and Shock Waves;1990-02
9 Liu Fulin(Liaoning University);A NUMERICAL METHOD OF ANALYSING PLASTIC DYNAMIC RESPONSE OF THIN SHELLS[J];Explosion and Shock Waves;1991-02
10 Zhao Yapu(Dept. of Mechanics,Beijing Univ. ,Beijng 100871);THE INFLUENCE OF LOADING AREA ON THE DYNAMIC PLASTIC BEHAVIOR OF SIMPLY SUPPORTED RIGID-PLASTIC BEAMS[J];Explosion and Shock Waves;1992-03
China Proceedings of conference Full-text Database 2 Hits
1 Gao fan Xu yang (China Railway Turnout Bridge Inc. Baoji 721006 technology of material science and engineering, Xi'an university Xi'an 710000);Technology study of libration-ageing for welding box beam[A];[C];2006
2 XIAO Guang-zhi, LI Shou-ju, LIU Ying-xi (Qitaihe Refined Coal Group Corp. Ltd., Qitaihe 154000, China);Parameter Inversion Algorithm of Explosion Shock Loading Based on Simulated Annealing[A];[C];2000
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved