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Keywords: surface roughness
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Journal Articles
Article Type: Research Papers
J. Appl. Mech. April 2022, 89(4): 041004.
Paper No: JAM-21-1417
Published Online: December 21, 2021
... elasticity modulus, roughness endows it with a finite modulus, and more importantly, some moduli may also change sign. We now consider a thin film of thickness h with a surface roughness profile given by Eq. (57) . We apply our homogenization scheme and then study the response of the effective...
Journal Articles
Article Type: Research-Article
J. Appl. Mech. March 2017, 84(3): 031006.
Paper No: JAM-16-1568
Published Online: January 12, 2017
... of the contact. It is observed that rough surface contact models that account for asperity interaction show good agreement with the experimental results of the thin-layered specimens contact response. This indicates the importance of accounting for asperity interaction in surface roughness contact modeling...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2011, 78(2): 021011.
Published Online: November 9, 2010
... of asperity heights in the form of a delta sequence is conducted to analytically show that a rougher surface dissipates more energy than a smoother surface. Numerical simulations with three typical measured surface roughness profiles are presented, validating the analytical finding that rougher surfaces...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2010, 77(4): 041011.
Published Online: April 14, 2010
... with controlled adjustable rates. To study the effect of different channel diameters and surface roughnesses, microchannels made of stainless steel, PEEK, and fused silica materials with nominal internal diameters ranging from 1 mm to 0.075 mm ( 75 μ m ) are tested. A magnetic field is applied perpendicular...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2008, 75(3): 031018.
Published Online: May 2, 2008
... analysis and cannot be neglected from the calculation. compressibility convection finite difference methods friction natural gas technology pipe flow pipelines surface roughness fully implicit method nonisothermal compressibility factor natural gas pipeline Joule–Thompson effect...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2008, 75(3): 031015.
Published Online: May 1, 2008
... of surface roughness can be described as a function of β ( = η σ R ) and σ ∕ R . These two parameters, adopted in this study, are given in the study of Nuri and Halling ( 31 ). By incorporating these two roughness parameters and the mechanical properties, the initial surface...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. January 2007, 74(1): 23–30.
Published Online: December 2, 2005
..., such as friction and wear. 28 07 2004 02 12 2005 diamond-like carbon oxygen chemisorbed layers adsorbed layers sliding friction wear surface phase transformations surface roughness dissociation bonds (chemical) ab initio calculations thin films This paper deals...
Journal Articles
Article Type: Additional Technical Papers
J. Appl. Mech. January 2006, 73(1): 143–152.
Published Online: May 12, 2005
... by constant fractal parameters, as well as Gaussian distribution. The difference between these two models is significantly enhanced as the mean separation becomes small. 16 06 2004 12 05 2005 fractals mechanical contact surface roughness Gaussian distribution elastic deformation plastic...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2004, 71(4): 459–464.
Published Online: September 7, 2004
... final publication in the paper itself in the ASME JOURNAL OF APPLIED MECHANICS . 07 October 2001 08 March 2004 07 09 2004 surface roughness numerical analysis Navier-Stokes equations boundary layer turbulence shear turbulence A distribution of roughness elements...
Journal Articles
Article Type: Brief Notes
J. Appl. Mech. March 2004, 71(2): 287–290.
Published Online: May 5, 2004
... OF APPLIED MECHANICS . Manuscript received by the ASME Applied Mechanics Division, Feb. 4, 2003, final revision, Sept. 30, 2003. Associate Editor: J. R. Barber. 04 Feb 2003 30 September 2003 05 05 2004 mechanical contact sliding friction surface roughness rough surfaces Gaussian...