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《Acta Mechanica Solida Sinica》 2007-03
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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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