Effects of work hardening mismatch on fracture resistance behavior of bi-material interface regions

Fan, Kai; Wang, Guozhen; Xuan, Fu Zhen; Tu, S.T.

doi:10.1016/j.matdes.2014.12.031

Cited by 26 publications

(32 citation statements)

References 35 publications

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“…For the effect of the material constraints, the J-resistance curves [5][6][7][8][9][10], crack growth paths [11,12], fracture toughness [13][14][15], and stress and strain fields at crack tip [16][17][18][19][20] under different material constraints have been widely studied. Wang et al [5,6] studied the J-resistance curves of a dissimilar metal welded joint at different crack positions with different material constraints.…”

Section: Introductionmentioning

confidence: 99%

“…Wang et al [5,6] studied the J-resistance curves of a dissimilar metal welded joint at different crack positions with different material constraints. Fan et al [7][8][9] studied the J-resistance curves of the bi-material welded joint under different work hardening mismatches. Sarikka et al [10] studied the effect of mechanical mismatch on the J-resistance curves of SA508-Alloy52 narrow gap dissimilar metal weld.…”

Section: Introductionmentioning

confidence: 99%

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Effect Range of the Material Constraint-II. Interface Crack

Dai

Yang

Wang

2019

Metals

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The selection of fracture behaviors used in the structure integrity assessment has significant implications on the accuracy of the assessment. The effect range of the material constraint is an important factor which effects the fracture behaviors of structures and exists in the different kinds of welded joints with the center crack. However, for the material constraint induced by an interface crack, which also appears widely in the welded joints, it is not clear whether the effect range exists or not. The further study of the effect range of the material constraint for the welded joints with interface crack is meaningful. Thus, in this study, different basic models with interface crack were designed, the fracture behaviors of these basic models under different material constraints were calculated, and the effect range of the material constraint induced by interface crack were studied. This study about the interface crack and the previous study about the center crack provide an additional basis for an accurate structure integrity assessment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect Range of the Material Constraint-II. Interface Crack

Dai

Yang

Wang

2019

Metals

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“…For example, in a laser beam welded aluminum alloy sheet, it is observed that crack extends towards the softer fusion zone that has much lower yield strength than the base metal [25]. The bi-material interface regions are found to be the weakest location for material failure due to the microstructure and mechanical property heterogeneity [26]. Therefore, understanding the crack growth behavior at the bi-material interface is very important to improve the structural integrity design of WAAM deposited components.…”

Section: Introductionmentioning

confidence: 99%

Crack path selection at the interface of wrought and wire+arc additive manufactured Ti–6Al–4V

Zhang

Wang

et al. 2016

Materials & Design

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“…Wang et al [8,9] and Sarikka et al [10] investigated the fracture resistance curve of dissimilar metal welded joint (DMWJ) influenced by material constraint. Fan et al [11][12][13] studied the fracture resistance curve of bi-material welded joint influenced by material constraint. Samal et al [14] and Yang et al [15] studied the deviation of crack propagation path in DMWJ influenced by material constraint.…”

Section: Introductionmentioning

confidence: 99%

Effect Range of the Material Constraint in Different Strength Mismatched Laboratory Specimens

2020

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Different strength mismatched laboratory specimens that contain the compact tension (CT), single edge-notched tensile (SENT), and central-cracked tension (CCT) specimens with various specimen geometries, loading configurations, and initial cracks were selected to investigate the effect range of the material constraint systematically. The results showed that the effect range of material constraint exists in all the strength mismatched specimens and structures. The numerical value of the effect range is influenced by the geometry constraint. The high geometry constraint reduces the effect range of material constraint. When a material is located outside the effect range of material constraint, the fracture resistance curves and crack propagation paths of the specimens and structures are no longer influenced by the mechanical properties of the material. In addition, an interaction exists between the geometry constraint and material constraint. The high geometry constraint strengthens the effect of material constraint, whereas the fracture resistance curve and crack propagation path are insensitive to the material constraint under the low geometry constraint. The results in this study may provide scientific support for the structure integrity assessment and the design of strength mismatched structures.

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Effects of work hardening mismatch on fracture resistance behavior of bi-material interface regions

Cited by 26 publications

References 35 publications

Effect Range of the Material Constraint-II. Interface Crack

Effect Range of the Material Constraint-II. Interface Crack

Crack path selection at the interface of wrought and wire+arc additive manufactured Ti–6Al–4V

Effect Range of the Material Constraint in Different Strength Mismatched Laboratory Specimens

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