Fatigue fracture behavior of cured epoxy adhesive containing a surface crack

Houjou, Keiji; Akiyama, Haruhisa; Sato, Chiaki

doi:10.1016/j.polymertesting.2022.107821

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Accordingly, the axial stress can also affect the crack propagation behavior of materials under cyclic torsional load. Because the fatigue growth analysis of surface cracks is crucial for the safe assessment of a structural component (Suman and Dwivedi, 2021;Huang et al, 2022;Kujawski et al, 2022;Sun et al, 2022;Field et al, 2023;Houjou et al, 2023), it is very important to explore the influence of mean tensile/compressive stress on the propagation behavior of surface cracks formed during torsional fatigue.…”

Section: Introductionmentioning

confidence: 99%

Crack bifurcation behavior of coarse-grained copper under cyclic torsion combined with axial static loading

Yue Liu,

Hua Li,

Chen

2023

Rev. metal.

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Because the growth behaviors of fatigue cracks are crucial for the safe assessment of structural components, the crack propagation behaviors of coarse-grained copper (CG Cu) subjected to cyclic torsion combined with different axial static stresses were studied. The crack bifurcation behavior is related to the strain amplitude applied. When the strain amplitude is lower, both the type and the magnitude of axial stress have no significant effect on the direction in which the primary crack branches, which is mainly determined by the position of the maximum normal plane. However, when the strain amplitude is higher, the bifurcated crack deviates visibly from the maximum normal plane, which can be attributed to the high degree of plastic deformation and microcracks caused by slip bands along longitudinal direction.

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Section: Introductionmentioning

confidence: 99%

Crack bifurcation behavior of coarse-grained copper under cyclic torsion combined with axial static loading

Yue Liu,

Hua Li,

Chen

2023

Rev. metal.

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“…Another group of permanent joints involves adhesive joints [9][10][11], where the load is transferred through the forces of adhesion [12][13][14]. An important consideration when analysing adhesive joints is their strength and load-bearing capacity.…”

Section: Introductionmentioning

confidence: 99%

Strength Analysis of Lap Joints in Aerospace Structural Materials

Kłonica¹,

Chatys²,

Blumbergs³

2022

Adv. Sci. Technol. Res. J.

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This paper is a study on the results of strength tests on single-lap joints used primarily in the aerospace industry, based on a Hi-Lok fastener. Two popular structural materials used in the aerospace industry were considered in this work. The test specimens were fabricated from the EN-AW 2024 T3 aluminium alloy and a carbon composite. It was decided to use the Naftoseal MC780 type C adhesive as a sealant to form the required hermetic, air-tight lap joints. In the definition of the joint type used, the results are presented for the tests of selected 2D and 3D surface roughness parameters, with isometric imaging of the surfaces related to this analysis. Microscopic images acquired at a magnification of x500 illustrate the surface quality. This work concludes with a discussion of the test results and conclusions.

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