A refined numerical modelling technique for Shot Peening

Thesis

Compressive residual stresses (CRS) are beneficial for enhancing the fatigue life of metal components. Shot Peening (SP) is an industrial cold working process that is applied to induce a field of CRS and modify the mechanical properties of the metal component. The SP process involves impacting a surface with tiny shots with forces sufficient to create plastic deformation. The process is governed by a number of important parameters such as the shot size, angle of attack, initial velocit...

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Authors: Murugaratnam, K

• Publication date: 2014
• DOI: 10.5287/ora-kojr1g7pj
• Type of award: DPhil
• Level of award: Doctoral
• Awarding institution: University of Oxford
• Language: English
• Keywords: finite element method; discrete element method; numerical simulation; residual stresses; Shot Peening
• Subjects: Surfaces; Materials processing; Processing of advanced materials; Mechanical engineering; Surface mechanical properties