吉林大学学报(工学版) ›› 2025, Vol. 55 ›› Issue (7): 2193-2202.doi: 10.13229/j.cnki.jdxbgxb.20231132

• 车辆工程·机械工程 • 上一篇    

残余应力对材料循环压痕响应的影响

李莉佳1(),李虹瑞1,谢朋书2,杨士通1,崔达2(),呼咏2,3   

  1. 1.长春工业大学 机电工程学院，长春 130012
    2.吉林大学 机械与航空航天工程学院，长春 130022
    3.吉林大学 数控装备可靠性教育部重点实验室，长春 130022
  • 收稿日期:2023-10-08 出版日期:2025-07-01 发布日期:2025-09-12
  • 通讯作者: 崔达 E-mail:lilijia@ccut.edu.cn;cuida@jlu.edu.cn
  • 作者简介:李莉佳（1992-），女，副教授，博士.研究方向：材料力学测试技术.E-mail： lilijia@ccut.edu.cn
  • 基金资助:
    吉林省教育厅科学技术研究项目(JJKH20220676KJ);吉林省科技厅重点研发项目(20220201027GX);吉林省青年科技人才托举工程项目(QT202209);数控装备可靠性教育部重点实验室开放基金项目(JLU-cncr-202208);重庆市自然科学基金项目(CSTB2022NSCQ-MSX0278)

Influence of residual stress on cyclic indentation behavior of materials

Li-jia LI1(),Hong-rui LI1,Peng-shu XIE2,Shi-tong YANG1,Da CUI2(),Yong HU2,3   

  1. 1.School of Mechatronic Engineering，Changchun University of Technology，Changchun 130012，China
    2.School of Mechanical and Aerospace Engineering，Jilin University，Changchun 130022，China
    3.Key Laboratory of CNC Equipment Reliability Ministry of Education，Jilin University，Changchun 130022，China
  • Received:2023-10-08 Online:2025-07-01 Published:2025-09-12
  • Contact: Da CUI E-mail:lilijia@ccut.edu.cn;cuida@jlu.edu.cn

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摘要：

为了表征残余应力对材料压入响应的影响规律，本文利用有限元模拟和循环压痕方法研究了残余应力下材料在压入实验中的力学行为和循环变形特性，揭示了材料力学性能参数和残余应力对材料循环压痕响应的影响。通过单因素压痕实验，得到了材料力学特性随屈服应力、硬化指数和残余应力的变化规律，并且研究了不同屈服应力、硬化指数和残余应力材料在循环载荷下的动态行为。结果表明：压痕深度和塑性位移随着屈服应力、硬化指数和残余应力的增加而减小；在循环过程中，压痕深度和塑性位移随着循环周次的增加而增加，并更快趋于稳定。

关键词: 纳米压痕, 残余应力, 循环变形, 力学行为

Abstract:

In order to investigate the influence pattern of residual stress on material indentation response， this paper investigates the mechanical behavior and cyclic deformation characteristics of materials under residual stress in indentation experiments using finite element simulation and cyclic indentation method， the influence of material mechanical property parameters and residual stress on the cyclic indentation behavior of materials is revealed. The variation of material mechanical properties with yield stress， hardening index and residual stress was obtained by single factor indentation experiments， and the dynamic behavior of materials with different yield stress， hardening index and residual stress under cyclic loading is also studied. The results show that the indentation depth and plastic displacement decrease with the increase of yield stress， hardening index and residual stress. In the cycle， the indentation depth and plastic displacement increase and stabilize faster with the increase of cycle weeks.

Key words: nanoindentation, residual stress, cyclic deformation, mechanical behavior

中图分类号: 

  • TB303

图1

有限元仿真模型"

表1

参数取值范围"

性能参数取值
弹性模量/GPa72
泊松比0.33
屈服应力/MPa300、400、500
硬化指数0.1、0.2、0.3

图2

不同摩擦因数的载荷-位移曲线"

图3

循环载荷幅值"

图4

循环压痕载荷-位移曲线"

图5

hmax、Wp随N变化曲线"

图6

屈服应力和硬化指数下hmax、hc、hf与N的关系"

图7

残余应力下hmax、hc、hf与N的关系"

图8

屈服应力下he、hp、HT与N的关系"

图9

硬化指数下he、hp、HT与N的关系"

图10

残余应力下he、hp、HT与N的关系"

图11

hmax随N的变化"

表2

拟合参数表"

a1b1R2 -1a2b2R2 -2
hmax5.698 060.008 150.999 80.006 115.746 450.986 81
hc5.437 250.009 880.993 780.007 35.491 270.992 94
hf5.259 660.008 930.994 410.006 35.307 530.996 07

图12

HT随N的变化"

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