Fatigue characterization of polyethylene under mixed mode I/III conditions

Gosch, Anja; Arbeiter, Florian; Berer, Michael; Vojtek, Tomáš; Hutař, Pavel; Pinter, Gerald

doi:10.1016/j.ijfatigue.2020.106084

Cited by 3 publications

(3 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The work shows that the lifetime of the specimens decreases significantly with higher temperatures achieved as a result of friction in the vicinity of the crack. The high sensitivity of polymers to friction-generated heat is also reported in [32,40].…”

Section: Models With Voids and Friction-results And Discussionmentioning

confidence: 71%

“…This means that the crack faces are being forced against each other and into one of the shear modes at the same time. It is quite likely that heat is generated by the friction of the crack faces in these intervals, which can have an influence on the crack propagation rate [31,32,41].…”

Section: Model With a Flat Crack-results And Discussionmentioning

confidence: 99%

“…The detailed knowledge of the mode mixity and accurate estimation of the stress intensity factors during crack propagation is necessary for further lifetime prediction of the component. A thorough finite element simulation (FEM) of a real component where cracks propagate in mixed-mode conditions is also essential for the further practical application of the findings of previous research on the mixed-mode crack propagation in thermoplastics [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Crack Propagation Analysis of Compression Loaded Rolling Elements

et al. 2021

Self Cite

View full text Add to dashboard Cite

The problem of crack propagation from internal defects in thermoplastic cylindrical bearing elements is addressed in this paper. The crack propagation in these elements takes place under mixed-mode conditions—i.e., all three possible loading modes (tensile opening mode I and shear opening modes II and III) of the crack are combined together. Moreover, their mutual relation changes during the rotation of the element. The dependency of the stress intensity factors on the crack length was described by general parametric equations. The model was then modified by adding a void to simulate the presence of a manufacturing defect. It was found that the influence of the void on the stress intensity factor values is quite high, but it fades with crack propagating further from the void. The effect of the friction between the crack faces was find negligible on stress intensity factor values. The results presented in this paper can be directly used for the calculation of bearing elements lifetime without complicated finite element simulations.

show abstract

Section: Models With Voids and Friction-results And Discussionmentioning

confidence: 71%

Section: Model With a Flat Crack-results And Discussionmentioning

confidence: 99%