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《Acta Mechanica Solida Sinica》 2007-03

STUDY ON THE SHAKEDOWN OF STRAIN-HARDENING STRUCTURES

Yuan Yuan Xu Yingqiang Lu Guozhi(School of Aerospace,Northwestern Polytechnical University,Xi'an,710072)
An analytical method of structures shakedown under plastic strain-hardening conditions has been developed based on Melan's theorem and Von Mises yield criterion.Relation between time-independent stresses field and elastic stresses subjected to external loadings is established based on mathematical approach,then the shakedown expressions of structures are given.Thus,the simple shakedown theorem of structure under external loading is presented according to the time-independent stresses and proved by Melan's theorem.The theorem is convenient to evaluate shakedown limit of structures without tedious computations compared with the traditional method.The theorem is propitious to simplify the shakedown analysis of strain-hardening structures by the mathematical example.
【Fund】： 国家自然科学基金(10672134);; 航空科学基金(01C53012)资助
【CateGory Index】： O344
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 【Citations】
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 1 Feng Xiqiao;Liu Xinsheng(TSinghua University,Beijing 100084,China);STUDY ON SHAKEDOWN OF STRUCTURES UNDER DIFFERENT STRAIN-HARDENING MODELS[J];ACTA MECHANICA SINICA;1994-06
 【Co-citations】
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 1 DONG Xing-ping, SHAO Guo-jian(College of Civil Engineering, Hohai University, Nanjing, 210098, China);SOME ISSUES ON SHAKEDOWN THEOREM AND ANALYSIS PROBLEMS[J];Journal of Anhui Institute of Architecture;2004-05 2 Yuan Yuan Yingqiang Xu Guozhi Lu (School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China);SIMPLE SHAKEDOWN OF STRUCTURES UNDER VARIABLE MULTI-LOADINGS[J];固体力学学报(英文版);2008-02
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