A Frictionless Normal Contact Model for Flattening Elastoplastic Single Asperity Considering Yield Plateau and Strain Hardening

• DOI: 10.1142/s1758825124500650
• Publication Date: 2024-04-26T07:55:30Z
• Authors: Juncheng Luo; Jianhua Liu; Huanxiong Xia; Xiaohui Ao; Jian Zhang; Xuerui Zhang; Hui Zhang; Hao Huang; Xin Liu
• Keywords: Contact Mechanics; Asperity (geotechnical engineering); Dimensionless quantity; Strain hardening exponent; Flattening; Hardening (computing); Contact area

Contact between solids is a ubiquitous phenomenon in engineering and an enduring topic tribology. However, material yield plateau strain hardening are common ductile metals but rarely considered contact mechanics. This work develops three-phase constitutive model that accurately describes the elastic plastic behaviors considering both hardening, then constructs finite element for of rigid flat corresponding elastoplastic hemisphere. The Taguchi method employed to conduct numerical simulations parameters finding generalized empirical formulations dimensionless load area versus interference range [Formula: see text]. presented demonstrate good accuracy verified with KE, JG, Ghaednia’s models. fills gap has not ever been explored mechanics provides basic describing behavior rough surfaces metal.