首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Visco‐elasto‐plastic model for martensitic phase transformation in shape‐memory alloys
Authors:Petr Plech   Tom&#x; Roubí ek
Institution:Petr Plechá?,Tomá? Roubí?ek
Abstract:Evolution of fine structure in martensite undergoing an isothermal process is modelled on a microscopic level by using a positive homogeneous dissipation potential which can reflect a specific energy needed for a phase transformation between different variants of martensite. The model thus naturally incorporates an activation phenomenon. Existence of a weak solution is proved together with convergence of finite‐element approximations. Numerical experiments showing the expected rate‐independent hysteresis response are also presented. Copyright © 2002 John Wiley & Sons, Ltd.
Keywords:twinning  martensite  quasiplasticity  non‐convex variational problems  double‐well problem  evolution  dissipation  activation
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号