THE FATIGUE GROWTH OF INCLINED SURFACE CRACKS UNDER BIAXIAL LOADING

被引：3

作者：

TU, ST

DAI, SH

机构：

[1] Applied Mechanics Institute, Southwestern Jiaotong University, Chengdu

[2] Chemical Machinery Institute, Nanjing Institute of Chemical Technology, Nanjing

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1990年 / 41卷 / 02期

关键词：

D O I：

10.1016/0308-0161(90)90037-I

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fatigue growth behaviour of randomly oriented surface defects has been for many years a problem which has been required to be solved in the assessment of structural safety. In the present paper an investigation is made which lays emphasis on the fatigue growth behaviour of inclined surface cracks under biaxial loading. Based on a series of finite element calculations a reasonable configuration of biaxial cruciform specimens is recommended and its stress intensity factor calibrated. The fatigue tests reveal the nature of non-equilibrated fatigue propagation of the inclined surface cracks and a two-steps model is thereby proposed for representing the fatigue crack growth rates. No evident difference is found when the fatigue growth data under biaxial loading is compared with those under uniaxial loading. In the light of these test results some related rules contained in the current codes of defect assessment are discussed. © 1990.

引用

页码：141 / 157

页数：17

共 15 条

[1]

Tu, Dai, Fatigue growth of inclined surface cracks, ASME PVP-88, 15, (1988)

[2]

Kitagawa, Yuuki, Tohgo, Tanabe, K-dependency of fatigue crack growth of single and mixed mode cracks under biaxial stress, Multiaxial Fatigue, ASTM STP 853, pp. 164-183, (1985)

[3]

Brown, Miller, Mode I fatigue crack growth under biaxial stress at room and elevated temperature, Multiaxial Fatigue, ASTM STP 853, pp. 135-152, (1985)

[4]

Gao, Miller, On the transverse stress and fatigue growth behaviour, Sinica Solida Mechanica, 2, pp. 21-26, (1985)

[5]

Yang, Mode I fatigue crack growth behaviour under biaxial loading, Master thesis, (1988)

[6]

PVRC, The long-range plan for pressure vessel research, WRC Bulletin, 327, (1987)

[7]

Raju, Newman, Stress-intensity factors for a wide range of semi-elliptical surface cracks in finite-thickness plates, Engineering Fracture Mechanics, 11, pp. 819-829, (1979)

[8]

Ando, Et al., Fatigue life and the cracking through thickness behaviour of surface cracks, J. JSME, 52 A, 483, pp. 2463-2470, (1986)

[9]

Tu, A study of the effect of the crack-like defects on the engineering structural integrity, PhD dissertation, (1988)

[10]

Kawahara, Kurihara, Preliminary study on fatigue crack growth from a surface flaw under combined tensile and bending loads, J. Soc. Nov. Archit., Japan, 137, pp. 207-306, (1975)

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