Mixed-mode fracture behavior of AM60 magnesium alloy using two parameter fracture mechanics

2019 ◽  
Vol 218 ◽  
pp. 106566
Author(s):  
Abuzar Es'haghi Oskui ◽  
Nasser Soltani ◽  
Mohammad Rajabi ◽  
Siegfried Schmauder
Keyword(s):  
Magnesium Alloy ◽  
Fracture Mechanics ◽  
Mixed Mode ◽  
Fracture Behavior ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
Two Parameter

Mixed mode fracture behavior of short-particle engineered wood

2021 ◽  
pp. 103054
Author(s):  
Ehsan Torabi ◽  
Saeid Ghouli ◽  
Majid R. Ayatollahi ◽  
Liviu Marsavina
Keyword(s):  
Mixed Mode ◽  
Fracture Behavior ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
Engineered Wood

Mixed-mode fracture behavior of 3D-printed PLA with zigzag filling

2020 ◽  
pp. 1-8
Author(s):  
Ahmet Refah Torun ◽  
Ege Can Yıldız ◽  
Şeyma Helin Kaya ◽  
Naghdali Choupani
Keyword(s):  
Mixed Mode ◽  
Fracture Behavior ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
3D Printed

scholarly journals Analysis of Inclined Cracks in Thin-Walled Circular Tube under Mixed-Mode I + II Fracture

Proceedings ◽  
2018 ◽  
Vol 2 (8) ◽  
pp. 517 ◽  
Author(s):  
Boy Raymond Mabuza
Keyword(s):  
Fracture Mechanics ◽  
Mixed Mode ◽  
Crack Tip ◽  
Theoretical Models ◽  
Mode I ◽  
Mixed Mode Fracture ◽  
Shear Stresses ◽  
Inclined Crack ◽  
Mode Fracture ◽  
Thin Walled

This paper provides a study on mixed-mode fracture mechanics in thin-walled tube which is subjected to tension, shear and torsion loading. This type of loading causes an inclined crack to develop and generate a mixture of normal and shear stresses ahead of a crack tip. The stress state ahead of a crack tip is frequently based on mixed-mode type of interactions which designate the amplitude of the crack tip stresses. The analytical expressions for the stress intensity factors for mixed-mode I + II approach are presented. The Paris law for mixed-modes I + II has been discussed. Mixed-mode fracture mechanics is used with theoretical models to predict the path of crack growth when an inclined crack is subjected to a combination of mode I and mode II deformations. The torque at which crack propagation can be expected has been determined. The numerical calculations have been carried out by using MATLAB code. The results are good and could be useful for companies working with thin-walled circular tubes.

Evaluation of size effect on mixed-mode fracture behavior of epoxy/silica nanocomposites

2017 ◽  
Vol 52 (4) ◽  
pp. 239-248 ◽  
Author(s):  
Ahmad Ghasemi-Ghalebahman ◽  
Javad Akbardoost ◽  
Yaser Ghaffari
Keyword(s):  
Fracture Toughness ◽  
Tangential Stress ◽  
Mixed Mode ◽  
Fracture Behavior ◽  
Process Zone ◽  
Maximum Tangential Stress ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
Stress Criterion ◽  
Maximum Tangential Stress Criterion

The aim of this study was to examine the effect of size on the mixed-mode fracture toughness of quasi-brittle nanocomposites with the help of modified maximum tangential stress criterion. The literature reveals that the effect of size on mixed-mode fracture behavior of brittle nanocomposites has not been well investigated previously using modified maximum tangential stress criterion. The studied nanocomposites were made of epoxy resin reinforced with 7 wt%, 20–30 nm nanosilica. The accuracy of the method was assessed by taking into account the high-order terms of Williams series expansion along with finite element over-deterministic method. To investigate the effect of size on fracture toughness, a number of three-point semi-circular bending tests with different radii and four angles of edge–crack orientation were conducted and subjected to mixed-mode loading. The size of fracture process zone and apparent fracture toughness ( Kc) were also evaluated as a function of sample size. Experimental results showed that the proposed approach can accurately predict the fracture behavior of studied nanocomposites.

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