Fatigue crack growth and closure behavior of embedded cracks

被引：0
|
作者：
Chermahini, R. C. [1 ]
Jabbari, M. [1 ]
机构：
[1] Mobarakeh Steel Co, Esfahan, Iran
来源：
ADVANCES IN HETEROGENEOUS MATERIAL MECHANICS 2008 | 2008年
关键词：
finite-elements; elastic-plastic; crack closure; crack opening; Al alloy;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A three-dimensional elastic-plastic finite-element analysis capable of extending the crack was used to investigate crack closure and opening behavior of nodes on the crack-surface plane. Three-cracked geometries, rectangular, elliptical and circular embedded shapes were investigated under constant amplitude crack extensions under different R-ratios and stress levels The material was an elastic-perfectly plastic AL 2024 alloy. The linear strain isoperimetric cubic elements were utilized in the analysis. The plasticity part of the program uses initial stress approach. The crack was extended one element size at the maximum applied stress of each load cycles. Crack closure and opening behavior of nodes on the crack surface plane after some cyclic crack extensions were investigated by using unloading and reloading portions of loading cycles. Crack surface displacements were investigated for different regions of crack surface plane for the specified load histories.
引用
收藏
页码：1228 / 1228
页数：1
相关论文
共 50 条
  • [21] ANALYSIS OF CLOSURE IN FATIGUE CRACK GROWTH
    BUDIANSKY, B
    HUTCHINSON, JW
    [J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1978, 45 (02): : 267 - 276
  • [22] ON THE DEVELOPMENT OF CRACK CLOSURE IN PHYSICALLY-SHORT FATIGUE CRACKS
    YU, W
    RITCHIE, RO
    [J]. JOURNAL OF METALS, 1985, 37 (11): : A107 - A107
  • [23] Fatigue crack growth behavior of small cracks emanating from a corner notch
    Parida, BK
    Manjunatha, CM
    Dash, PK
    [J]. SMALL FATIGUE CRACKS: MECHANICS, MECHANISMS, AND APPLICATIONS, 1999, : 475 - 482
  • [24] Fatigue crack growth and crack closure in an AlMgSi alloy
    Borrego, LP
    Ferreira, JM
    Costa, JM
    [J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2001, 24 (04) : 255 - 265
  • [25] Fatigue crack closure and crack growth following an overload
    Vermal, BB
    Pandey, RK
    [J]. JOURNAL OF TESTING AND EVALUATION, 2004, 32 (06) : 462 - 468
  • [26] FATIGUE CRACK GROWTH AND CRACK CLOSURE IN VACUUM.
    Jono, Masahiro
    Song, Jiho
    Ohgaki, Masayoshi
    [J]. Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1985, 51 (463): : 806 - 813
  • [27] Microscopic and macroscopic growth rates of fatigue cracks in steels and alloys under the influence of crack closure
    Pinyak I.S.
    [J]. Strength of Materials, 2002, 34 (01) : 62 - 72
  • [28] Effect of phase morphology on fatigue crack growth behavior of α-β titanium alloy—A crack closure rationale
    Vikas Kumar Saxena
    V. M. Radhakrishnan
    [J]. Metallurgical and Materials Transactions A, 1998, 29 : 245 - 261
  • [29] Effect of phase morphology on fatigue crack growth behavior of α-β titanium alloy - a crack closure rationale
    Saxena, Vikas Kumar
    Radhakrishnan, V.M.
    [J]. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 1998, 29 A (01): : 245 - 261
  • [30] Analyses of fatigue crack growth and closure near threshold conditions for large-crack behavior
    Newman, JC
    [J]. FATIGUE CRACK GROWTH THRESHOLDS, ENDURANCE LIMITS, AND DESIGN, 2000, 1372 : 227 - 251
12345