Curvature Radius Modeling for Aluminum Alloy I-beam Prebending Shot Peening

孙小钦; 高国强; 王永军; 肖静怡; 王世浩

doi:10.13433/j.cnki.1003-8728.20230121

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Curvature Radius Modeling for Aluminum Alloy I-beam Prebending Shot Peening

更新时间：2026-07-10

- Curvature Radius Modeling for Aluminum Alloy I-beam Prebending Shot Peening
- Mechanical Science and Technology for Aerospace Engineering Vol. 43, Issue 12, Pages: 2176-2184(2024)
- 作者机构：
  
  1. 西北工业大学机电学院,西安,710072
  2. 中航西安飞机工业集团有限公司,西安,710089
- 作者简介：
- 基金信息：
- DOI：10.13433/j.cnki.1003-8728.20230121
  CLC：
- Published：2024
- 稿件说明：
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孙小钦, 高国强, 王永军, et al. Curvature Radius Modeling for Aluminum Alloy I-beam Prebending Shot Peening[J]. Mechanical Science and Technology for Aerospace Engineering, 2024, 43(12): 2176-2184.
DOI：

孙小钦, 高国强, 王永军, et al. Curvature Radius Modeling for Aluminum Alloy I-beam Prebending Shot Peening[J]. Mechanical Science and Technology for Aerospace Engineering, 2024, 43(12): 2176-2184. DOI： 10.13433/j.cnki.1003-8728.20230121.

摘要

采用等效喷丸成形诱导应力，建立了航空铝合金2024-T351工字梁预弯喷丸成形曲率半径分析数学模型，分析了等效喷丸诱导应力对喷丸成形曲率的影响规律；采用JC（Johnson-Cook）本构模型和代表单元法分析了不同喷丸覆盖率下诱导应力的变化规律，并分析得到24.8%、35.3%和50.3%覆盖率下代表单元尺寸约是冲击区的3.1、3.7和4.4倍时，得到稳定的模拟结果。在此基础上，采用有限元直接应力法分析了有预弯和无预弯情况下喷丸成形的曲率半径的变化规律，通过实验验证了所建立数学模型和有限元模拟模型的有效性。

Abstract

A model for analyzing the curvature radius in the pre-bending shot peening of 2024-T351 I-beam of aviation aluminum alloy was established by using the equivalent shot peening induced stress. The JC (Johnson-Cook) constitutive model and representative volume element method are employed to analyze the variation law of shot peening induced stress under different shot peening coverage rates

as a result that the stable simulation results are obtained when the representative volume element size is 3.1

3.7

4.4 times the size of the impact zone for 24.8%

35.3%

50.3% coverage rates respectively. On this basis

the finite element direct stress method is used to simulate the law of curvature radius in the shot peeningof I-beam with pre-bending and without pre-bending with defining coverage rate on different zone. A least square method is used to calculate the curvature radius with the coordinate data form simulation result. The effectiveness of the present model and finite element simulation are verified by using experiment.

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