Modeling and Numerical Simulation of Fatigue Crack Growth in Cracked Specimens Containing Material Discontinuities

Jameel, Azher; Harmain, G.A.

doi:10.1007/s11223-016-9765-0

Cited by 51 publications

(5 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For different composite materials, respective equations of

{\overset{true¯}{K}}_{I}

are proposed . However, for complex situations, the finite element method is usually more popular …”

Section: The Mechanics Of Fatigue Crack Growth In Composite Materialsmentioning

confidence: 99%

“…28 However, for complex situations, the finite element method is usually more popular. 29,30 For plastic mismatch, Sugimura 19 used J tip and J far to explain the effect of plastic mismatch on crack propagation. For plastic mismatch-dominated material mismatches, J-integral is used to characterize the change of "crack driving force" near the interface.…”

Section: The Mechanics Of Fatigue Crack Growth In Composite Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Investigation on the fatigue crack behavior of Zr702/TA2/Q345R composite plate with a crack normal to interface

Zhou

et al. 2019

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

In this paper, the effects of maximum load, load ratio, and average load on fatigue crack propagation of Zr702/TA2/Q345R composite plate with a crack normal to the interface are studied by experiment and finite element method. When crack propagates to the interface from the compliant material side, the crack growth rate decreases to the minimum at first. After crack penetrates through the interface, the fatigue crack growth rate accelerates continuously. When crack propagates to the interface from the stiff material side, the fatigue crack growth rate generally increases with the crack length. Regardless of the direction of crack growth, the increase of load ratio will weaken the difference of crack growth rate near the interface caused by material property mismatch. Finite element results show that elastic modulus mismatch significantly changes the variation of the stress intensity factor amplitude. All results demonstrate that crack growth rate is dependent on the competition of the stress intensity factor amplitude, the fatigue crack growth rate in the corresponding material, and the interface strength.

show abstract

“…For different composite materials, respective equations of

{\overset{true¯}{K}}_{I}

are proposed . However, for complex situations, the finite element method is usually more popular …”

Section: The Mechanics Of Fatigue Crack Growth In Composite Materialsmentioning

confidence: 99%

Section: The Mechanics Of Fatigue Crack Growth In Composite Materialsmentioning

confidence: 99%

Investigation on the fatigue crack behavior of Zr702/TA2/Q345R composite plate with a crack normal to interface

Zhou

et al. 2019

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…Moes et al [45] investigated non-planar crack growth in 3D bodies using the XFEM method, estimating SIF at the crack fronts of lens-shaped, inclined elliptical, and semi-circular cracks. Jameel et al [46] utilized the XFEM method to determine the life under fatigue loading of bi-material interface cracked specimens. Sachin et al [47] introduced the homogenized XFEM method for predicting the life under plate fatigue loading that includes diverse forms of discontinuities, including major and minor cracks, inclusions, and holes.…”

Section: Introductionmentioning

confidence: 99%

Free vibration behaviour of cracked composite sandwich plate: Meta-modelling approach (HOXFEM-ANN)

Dwivedi,

Raza,

Pathak

2023

Preprint

View full text Add to dashboard Cite

Sandwich plates are commonly subjected to transverse shear force during their service and exhibit vibration phenomena. The presence of geometrical discontinuities or fabrication defects like cracks, pores, and holes in the sandwich structure can significantly reduce its stiffness and influence the natural frequency of the plate. This paper proposed a meta-modeling approach based on the higher-order extended finite element method (HOXFEM) and artificial neural network (ANN) to predict natural frequency response of a cracked sandwich plate. A higher-order shear deformation theory (HSDT) is employed for laminated sandwich plates. In the presented HOXFEM method, crack tip enrichment functions are revised for better computational accuracy and computational time. Only four crack tip enrichment functions are proposed in HOXFEM, instead of the eight enrichment functions used in classical XFEM approach. These four enrichment functions consist of two enrichment functions for displacement degrees of freedom and two enrichment functions for rotational degrees of freedom. Further, optimized neural network architecture (4-10-10-10-1) is constructed with data obtained from HOXFEM simulation. The efficacy of the proposed methodology is established through the application of various numerical examples. These examples include different crack sizes and various small cracks/holes configurations within the sandwich plate under different boundary conditions.

show abstract

“…Performing fracture and fatigue analyses efficiently and precisely for three-dimensional structures with cracks is always a challenging subject in engineering. Plenty of effort has been made to obtain the advanced method for analysing three-dimensional crack problems, such as the embeddedsingularity elements [18,19], the singular quarter-point elements [20,21], the XFEM [22][23][24][25][26][27], and the symmetric Galerkin boundary element method-finite element method (SGBEM-FEM) alternating method [28][29][30][31]. Recently, Tian et al [32][33][34][35] have made a series of two-dimensional and three-dimensional fatigue analyses on several kinds of typical structures in mechanical and civil engineering and obtained some useful results for the practical engineering.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Research on Defective Shield Segment under Cyclic Loading

Tian

Chen³

2021

Shock and Vibration

View full text Add to dashboard Cite

The retaining structure of a shield tunnel is usually subjected to static loading; however, cyclic loading such as the vibration loading of the train will act on the lining structure year after year that cannot be neglected. Due to the complex manufacturing and assembling process of the lining segment, initial defects in the segment are inevitable. Such defects will propagate under the cyclic loading such as the train vibration, which may cause a large threat to the shield tunnel system. In this paper, a defective shield tunnel lining segment under cyclic loading is studied by both a full-scale experiment and three-dimensional numerical simulations to investigate its fracture properties and failure mechanism and make a rational estimate of its fatigue life. Results show that crack propagation of the defective shield tunnel segment can be identified as several different stages based on its deformation characteristics, and the failure pattern of the segment is determined by its initial defects. The results by the experiment and numerical investigation are in good agreement for each other.

show abstract

Modeling and Numerical Simulation of Fatigue Crack Growth in Cracked Specimens Containing Material Discontinuities

Cited by 51 publications

References 62 publications

Investigation on the fatigue crack behavior of Zr702/TA2/Q345R composite plate with a crack normal to interface

Investigation on the fatigue crack behavior of Zr702/TA2/Q345R composite plate with a crack normal to interface

Free vibration behaviour of cracked composite sandwich plate: Meta-modelling approach (HOXFEM-ANN)

Experimental and Numerical Research on Defective Shield Segment under Cyclic Loading

Contact Info

Product

Resources

About