알멘 스트립 시험 모사를 이용한 유한요소모델의 유효성 검증 및 잔류응력분포 계산Verification of Finite Element Model Using the Almen Strip Test and Its Applications to Calculate Residual Stress Distribution
- Authors
- 양조예; 박성호; 이영석
- Issue Date
- 2012
- Publisher
- 한국소성가공학회
- Keywords
- Shot Peening; Residual Stress; Almen Strip; Arc Height
- Citation
- 소성가공, v.21, no.3, pp 172 - 178
- Pages
- 7
- Journal Title
- 소성가공
- Volume
- 21
- Number
- 3
- Start Page
- 172
- End Page
- 178
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/35585
- DOI
- 10.5228/KSTP.2012.21.3.172
- ISSN
- 1225-696X
2287-6359
- Abstract
- We performed a shot peening test and used a 2-D finite element model which predicts the compressive residual stress distribution below the material’s surface. In this study, the concept of ‘impact cycle’ is introduced to account for the irregularity in the shot's impact position during testing. The impact cycle was imbedded in the finite element model. In the shot peening test, shot bombarded a type-A Almen strip surface with different impact velocities. To verify the proposed finite element model, we compared the deformed cross sectional shape of the Almen strips with the shapes computed by the proposed finite element model. Good agreement was noted between measurements and the finite element model predictions. With the verified finite element model, a series of finite element simulations was conducted to compute the residual stress distribution below the material’s surface and the characteristics of these distributions are discussed.
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Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
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