Work

Effect Mechanism of Water Jet Peening on Surface Integrity and Ultrahigh‐Cycle Fatigue Performance of “Sandwich” Laminates

Year: 2025

Type: article

Abstract: ABSTRACT This study investigates the effect mechanism of water jet peening (WJP) on the surface integrity and fatigue performance of CoCrFeNiAl/Al6061 laminate composites. Through experiments and finite element simulations, the following results were obtained: At a jet velocity of 300 mm/s, significant plastic deformation was observed in the core layer, and the maximum residual compressive stress increased from 679 MPa at 250 mm/s to 802 MPa, indicating that higher jet velocity promotes the development of residual stress. Core layer thickness plays a crucial role in fatigue life; specimens with a 1‐mm‐thick core layer exhibited lower fatigue life, while a 2‐mm‐thick core layer showed significant improvement. The jet velocity of 300 mm/s was the most effective in enhancing fatigue life.

Source: Fatigue & Fracture of Engineering Materials & Structures

DOI: 10.1111/ffe.14633

Authors: Ping Zhang, Yeran Gao, Xiaomin Jiang, Yan Yu

Institutions: Guangdong Ocean University, Qingdao University of Technology

Language: English

Topic: Surface Treatment and Residual Stress

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: National Natural Science Foundation of China

Award: G5145332486