کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
278273 1430262 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface adhesion and hardening effects on elastic–plastic deformation, shakedown and ratcheting behavior of half-spaces subjected to repeated sliding contact
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Surface adhesion and hardening effects on elastic–plastic deformation, shakedown and ratcheting behavior of half-spaces subjected to repeated sliding contact
چکیده انگلیسی

Deformation of homogeneous elastic-perfectly plastic (EPP) and elastic-linear kinematic hardening plastic (ELKP) half-spaces due to repeated adhesive sliding contact is examined with a two-dimensional finite element model. Interfacial adhesion is modeled by nonlinear springs with a force-distance constitutive relation derived from the Lennard–Jones potential. Deformation behavior is interpreted in terms of dimensionless parameters, such as the Maugis parameter, interaction distance (interfacial gap), and plasticity parameter. Numerical results provide insight into the stress–strain response and the evolution of subsurface plasticity. The effects of the interaction distance, plasticity parameter, interfacial adhesion, and Maugis parameter on the friction and normal forces and the accumulation of plastic strain are analyzed in terms of the number of sliding cycles. Deformation maps providing information about the steady-state mode of deformation are presented for both EPP and ELKP material behaviors. Results of this study illustrate the importance of elastic–plastic material behavior and interfacial adhesion in contact deformation due to repeated surface sliding.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 50, Issue 6, 15 March 2013, Pages 876–886
نویسندگان
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