title: Effects and mechanisms of surface topography on the antiwear properties of molluscan shells (Scapharca subcrenata) using the fluid-solid interaction method.
abstract: The surface topography (surface morphology and structure) of the left Scapharca subcrenata shell differs from that of its right shell. This phenomenon is closely related to antiwear capabilities. The objective of this study is to investigate the effects and mechanisms of surface topography on the antiwear properties of Scapharca subcrenata shells. Two models are constructed-a rib morphology model (RMM) and a coupled structure model (CSM)-to mimic the topographies of the right and left shells. The antiwear performance and mechanisms of the two models are studied using the fluid-solid interaction (FSI) method. The simulation results show that the antiwear capabilities of the CSM are superior to those of the RMM. The CSM is also more conducive to decreasing the impact velocity and energy of abrasive particles, reducing the probability of microcrack generation, extension, and desquamation. It can be deduced that in the real-world environment, Scapharca subcrenata's left shell sustains more friction than its right shell. Thus, the coupled structure of the left shell is the result of extensive evolution.
authors: Key Laboratory of Bionic Engineering (Jilin University), Ministry of Education, Changchun 130022, China.
authors: Limei
authors: L
authors: Tian
authors: Secretariat of the International Society of Bionic Engineering, Jilin University, Changchun 130012, China.
authors: Ximei
authors: X
authors: Tian
authors: School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China.
authors: Guoliang
authors: G
authors: Hu
authors: Key Laboratory of Bionic Engineering (Jilin University), Ministry of Education, Changchun 130022, China.
authors: Yinci
authors: Y
authors: Wang
authors: Key Laboratory of Bionic Engineering (Jilin University), Ministry of Education, Changchun 130022, China.
authors: Luquan
authors: L
authors: Ren
mesh_terms: D060105:Animal Shells; D000818:Animals; D008962:Models, Theoretical; D049894:Scapharca