The applicability of J-integral approach in the determination of mixed-mode fracture energy in a ductile adhesive

2018 ◽  
Vol 83 ◽  
pp. 2-8 ◽  
Author(s):  
M.Z. Sadeghi ◽  
J. Zimmermann ◽  
A. Gabener ◽  
K.U. Schroeder
Keyword(s):  
Fracture Energy ◽  
Mixed Mode ◽  
Integral Approach ◽  
Mixed Mode Fracture ◽  
J Integral ◽  
Mode Fracture

Mixed mode fracture energy of concrete

1990 ◽  
Vol 35 (1-3) ◽  
pp. 145-157 ◽  
Author(s):  
Enrico Ballatore ◽  
Alberto Carpinteri ◽  
Gerardo Ferrara ◽  
Giorgio Melchiorri
Keyword(s):  
Fracture Energy ◽  
Mixed Mode ◽  
Mixed Mode Fracture ◽  
Mode Fracture

A J-Integral Approach to Crack Resistance for Aluminum, Steel, and Titanium Alloys

1977 ◽  
Vol 99 (2) ◽  
pp. 97-104 ◽  
Author(s):  
D. P. Wilhem ◽  
M. M. Ratwani ◽  
G. F. Zielsdorff
Keyword(s):  
Mixed Mode ◽  
Crack Extension ◽  
Crack Growth Resistance ◽  
Integral Approach ◽  
Mixed Mode Fracture ◽  
J Integral ◽  
Crack Orientation ◽  
Crack Line ◽  
Crack Tip Plasticity ◽  
Resistance Data

Crack growth resistance data have been obtained for a variety of materials as a function of thickness and crack orientation. Resistance to crack extension is determined in terms of the square root of JR which includes crack tip plasticity. To obtain these data elastic and elastic-plastic analyses were performed on the crack line wedge loaded (CLWL) specimen. The data thus obtained can be used as a failure criterion in both plane stress and mixed mode fracture of uniaxially loaded, reinforced structure containing initial or fatigue induced flaws.

scholarly journals J-integral analysis of the mixed-mode fracture behaviour of composite bonded joints

2019 ◽  
Vol 96 (1-4) ◽  
pp. 321-344
Author(s):  
F. J. C. F. B. Loureiro ◽  
R. D. S. G. Campilho ◽  
R. J. B. Rocha
Keyword(s):  
Mixed Mode ◽  
Fracture Behaviour ◽  
Mixed Mode Fracture ◽  
J Integral ◽  
Bonded Joints ◽  
Mode Fracture ◽  
Integral Analysis

scholarly journals Fully Plastic J-Integrals for Mixed Mode Fracture Induced by Inclined Surface Cracks in Pressurized Ductile Pipes

2020 ◽  
Author(s):  
Weigang Wang ◽  
Wei Yang ◽  
Chun-Qing Li
Keyword(s):  
Inclination Angle ◽  
Mixed Mode ◽  
Strain Hardening Exponent ◽  
Mixed Mode Fracture ◽  
J Integral ◽  
Surface Cracks ◽  
Mode Fracture ◽  
Aspect Ratios ◽  
Predictive Formulas ◽  
Inclined Surface

Surface cracks have been recognized as major causes for fracture failures of ductile pipes. This paper intends to derive a normalized fully plastic J-integral solution to mixed-mode fracture caused by inclined surface cracks in pressurized ductile pipes. A combined J-integral and finite element method is developed to evaluate the J-integral for inclined surface cracks. A set of predictive formulas for normalized fully plastic J-integrals are developed. It is found in this paper that the normalized fully plastic J-integral increases with the decrease of crack inclination angle and aspect ratios, and the increase of strain hardening exponent. It is also found that the critical locations of crack propagation occur between the surface point and the deepest point of cracks when the inclination angle is relatively small. The paper concludes that the developed formulas can accurately predict the normalized fully plastic J-integrals along the front of inclined surface cracks. The results presented in the paper can enable researchers and practitioners to accurately predict the mixed-mode fracture failure of pressurized pipes subject to inclined surface cracks.

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