**Meet the editors**

Prof. (Dr.) Pranav H. Darji graduated in Mechanical Engineering from the North Gujarat University, Gujarat, India, in 1998. He received his postgraduate degree from the Gujarat University, Gujarat, India, in Mechanical Engineering with a specialization in CAD/CAM in 2001. He received his PhD degree from the S.V. National Institute of Technology, Gujarat, India, in Mechanical Engineering in the specific field of

rolling element bearing in 2015. He has 20 years of academic and administrative experience. He is working as a professor at the Department of Mechanical Engineering, C.U. Shah College of Engineering and Technology, C.U. Shah University, Wadhwan City, Gujarat, India, since 2010 and a principal in the same college and university since 2017. He has worked as an Assistant Professor from 2004 to 2010 in the same organization. He has previously worked as a lecturer at N.M. Gopani Polytechnic, Gujarat, India, from 1998 to 2002 and the Head of the Department of Mechanical Engineering from 2002 to 2004. Since 2015, he is also working as the director of P.G. Studies and Research at the Research, Development, and Innovation Center of C.U. Shah University as an additional responsibility and associated with various research activities. His research interest focuses on the areas of bearing technology, tribology, CAD, FEA, and advanced machine design. On the same area, he has published more than 68 research papers in various reputed national and international journals and conferences. He has edited international books *Advances in Tribology* in 2016 and *Bearing Technology* in 2017. He has organized many conferences and workshops for the benefit of the researchers, academicians, and industrialist. He has guided more than 22 dissertations of postgraduate students and 8 PhD scholars. He has given more than 12 invited presentations.

He is also associated actively with the industries to undertake the projects for the mutual benefits. He serves as an editorial board member of reputed international journals. He is a life member of professional bodies such as Institution of Engineers (India), Tribology Society of India, and Indian Society for Technical Education. He is a registered chartered engineer (Mechanical Engineering).

Prof. (Dr.) Veera P. Darji graduated in Mechanical Engineering from the Bhavnagar University, Gujarat, India, in 2000. She received her postgraduate degree from the Maharaja Sayajirao University, Gujarat, India, in Metallurgy Engineering with a specialization in Materials Technology in 2002. She received her PhD degree from the S.V. National Institute of Technology, Gujarat, India, in Mechanical Engi-

neering in the specific field of multiple criteria decision making for manufacturing and industrial environment in 2016. She has 16 years of academic and administrative experience. She is working as a professor at the Department of Mechanical Engineering since 2010 and the Head of the Department of

Mechanical Engineering since 2018 at the C.U. Shah College of Engineering and Technology, C.U. Shah University, Wadhwan City, Gujarat, India. She has worked as a lecturer from 2004 to 2008 and as an Assistant Professor from 2008 to 2010 in the same organization. She has previously worked as a lecturer at N.M. Gopani Polytechnic, Gujarat, India, from 2002 to 2004 and the Head of the Department of Metallurgy Engineering from 2003 to 2004. Since 2008, she is holding the position of chairperson in various women staff and student committees of C.U. Shah College of Engineering and Technology and C.U. Shah University as an additional responsibility. Her research interest focuses on areas of optimization of various situations for manufacturing and industrial engineering issues. On the same area, she has published more than 35 research papers in various reputed national and international journals and conferences. She has coordinated a good number of conferences and workshops for the benefit of the researchers, academicians and industrialist. She has guided 13 dissertations of postgraduate students and 8 PhD scholars. She is also associated actively with the industries to undertake the projects for the mutual benefits. She is a life member of professional bodies such as Institution of Engineers (India), Society of MCDM, and Indian Society for Technical Education. She is a registered chartered engineer (Mechanical Engineering).

Contents

**Preface VII**

**Section 1 Contact Mechanics 1**

**Sealing Studies 3**

Arnaud Caron

Giuseppe Pintaude

**Contact Models 97** Chiara Gastaldi

**under Impulsive Loading 119**

Lin Jing, Zhihua Wang and Longmao Zhao

Chapter 1 **Contact Mechanics of Rough Surfaces in Hermetic**

**Contacts with Metal Surfaces 27**

Peter Ogar, Sergey Belokobylsky and Denis Gorokhov

Chapter 2 **Experimental Studies of Nanometer-Scaled Single-Asperity**

Chapter 3 **Deformation Regimes for Sphere-Plane Contact: Revisiting Tabor's Criteria for Differential Hardness 45**

Chapter 4 **Adaptive Mesh Refinement Strategy for the Semi-Analytical Solution of Frictionless Elastic Contact Problems 59** Victor Roda-Casanova and Francisco Sanchez-Marin

Chapter 5 **Improving Contact Load-Bearing Resistance of Ultrafine-**

Chapter 6 **Modeling Friction for Turbomachinery Applications: Tuning Techniques and Adequacy Assessment of Heuristic**

Chapter 7 **Single-Curvature Sandwich Panels with Aluminum Foam Cores**

**Grained Materials Through Multilayering and Grading 79** Dengke Yang, Jiangting Wang, Huimin Yang and Peter Hodgson
