Loading rate effect on mixed mode I/II brittle fracture behavior of PMMA using inclined cracked SBB specimen

2021 ◽  
pp. 111177
Author(s):  
M.R.M. Aliha ◽  
S.S. Samareh-Mousavi ◽  
M.M. Mirsayar
Keyword(s):  
Brittle Fracture ◽  
Mixed Mode ◽  
Fracture Behavior ◽  
Loading Rate ◽  
Rate Effect ◽  
Mode I

Loading rate effect on fracture behavior of fiber reinforced high strength concrete using a semi-circular bending test

2020 ◽  
Vol 240 ◽  
pp. 117681
Author(s):  
Mehran Aziminezhad ◽  
Sahand Mardi ◽  
Pouria Hajikarimi ◽  
Fereidoon Moghadas Nejad ◽  
Amir H. Gandomi
Keyword(s):  
High Strength Concrete ◽  
Fracture Behavior ◽  
Loading Rate ◽  
High Strength ◽  
Rate Effect ◽  
Bending Test ◽  
Fiber Reinforced ◽  
Strength Concrete

scholarly journals Investigation by Digital Image Correlation of Mixed Mode I and II Fracture Behavior of Metallic IASCB Specimens with Additive Manufactured Crack-Like Notch

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 400 ◽  
Author(s):  
Ivo Campione ◽  
Tommaso Maria Brugo ◽  
Giangiacomo Minak ◽  
Jelena Janković Tomić ◽  
Nebojša Bogojević ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Mixed Mode ◽  
Fracture Behavior ◽  
Selective Laser Sintering ◽  
Local Stress ◽  
Fatigue Loading ◽  
Image Correlation ◽  
Mode I ◽  
Displacement Fields

This work investigates the fracture behavior of maraging steel specimens manufactured by the selective laser sintering (SLS) technology, in which a crack-like notch (sharp notch) was directly produced during the additive manufacturing (AM) process. For the evaluation of the fracture toughness, the inclined asymmetrical semi-circular specimen subjected to three points loading (IASCB) was used, allowing to cover a wide variety of Mode I and II combinations. The effectiveness of manufacturing crack-like notches via the SLS technique in metals was evaluated by comparing the obtained experimental results with the ones obtained with pre-cracks induced by fatigue loading. The investigation was carried out by using the digital image correlation (DIC) technique, that allowed the evaluation of the full displacement fields around the crack tip. The displacement field was then used to compute the stress intensity factors (SIFs) for various combinations of Mode I and II, via a fitting technique which relies on the Williams’ model for the displacement. The SIFs obtained in this way were compared to the results obtained with the conventional critical load method. The results showed that the discrepancy between the two methods reduces by ranging from Mode I to Mode II loading condition. Finally, the experimental SIFs obtained by the two methods were described by the mixed mode local stress criterium.

scholarly journals Brittle fracture investigation from disc specimen weakened by U- notch in mixed mode I + II

2020 ◽  
pp. 337-352 ◽  
Author(s):  
Mustafa Moussaoui ◽  
Salah Amroune ◽  
Antar Tahiri ◽  
Brahim Khalil Hachi
Keyword(s):  
Brittle Fracture ◽  
Mixed Mode ◽  
Mode I ◽  
Disc Specimen

Numerical investigation on dynamic fracture behavior of cracked rocks under mixed mode I/II loading

2020 ◽  
Vol 235 ◽  
pp. 107176 ◽  
Author(s):  
Youzhen Li ◽  
Feng Dai ◽  
Mingdong Wei ◽  
Hongbo Du
Keyword(s):  
Numerical Investigation ◽  
Dynamic Fracture ◽  
Mixed Mode ◽  
Fracture Behavior ◽  
Mode I
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