کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9706654 1465423 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elastic-plastic contact model for rough surfaces based on plastic asperity concept
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Elastic-plastic contact model for rough surfaces based on plastic asperity concept
چکیده انگلیسی
A mathematical formulation for the contact of rough surfaces is presented. The derivation of the contact model is facilitated through the definition of plastic asperities that are assumed to be embedded at a critical depth within the actual surface asperities. The surface asperities are assumed to deform elastically whereas the plastic asperities experience only plastic deformation. The deformation of plastic asperities is made to obey the law of conservation of volume. It is believed that the proposed model is advantageous since (a) it provides a more accurate account of elastic-plastic behavior of surfaces in contact and (b) it is applicable to model formulations that involve asperity shoulder-to-shoulder contact. Comparison of numerical results for estimating true contact area and contact force using the proposed model and the earlier methods suggest that the proposed approach provides a more realistic prediction of elastic-plastic contact behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 40, Issue 4, May 2005, Pages 495-506
نویسندگان
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