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Numerical and Experimental Study of Mixed-Mode Crack Growth in a Brittle Asymmetrical SNEB Specimen Under Three-Points Bending Test

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Authors Numerical and Experimental Study of Mixed-Mode Crack Growth in a Brittle Asymmetrical SNEB Specimen Under Three-Points Bending Test

  Seyed Benyamin Adibzadeh - Ph.D. Student, Dept. of Civil Engineering, Imam Khomeini International University, Qazvin, Iran
  Farzaneh Hamedi - Assist. Prof., Dept. of Civil Engineering, Imam Khomeini International University, Qazvin, Iran

Abstract:

A mixed-mode crack (first and second modes of fracture) has been considered in an unsymmetrical single notched edge bending specimen and the crack growth path has been found through numerical simulations. The supposed rock is a kind of natural decorative and construction marble, namely, Gohareh. Then by testing eight symmetrical and five unsymmetrical SENB specimens under three-points bending test the fracture toughness of the first mode and the crack growth path were obtained. The result shows that the fracture toughness of the first mode in numerical analysis is almost 25% less than the experimental fracture toughness which was 1.1 MPa.m0.5.

Keywords:

Fracture Toughness, Marble Rock, Mixed Mode, Crack Growth

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COI code: SECM03_028

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Adibzadeh, Seyed Benyamin & Farzaneh Hamedi, 2019, Numerical and Experimental Study of Mixed-Mode Crack Growth in a Brittle Asymmetrical SNEB Specimen Under Three-Points Bending Test, rd International Conference on Applied Researches in Structural Engineering and Construction Management (secm2019), تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-SECM03-SECM03_028.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Adibzadeh, Seyed Benyamin & Farzaneh Hamedi, 2019)
Second and more: (Adibzadeh & Hamedi, 2019)
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Type: state university
Paper No.: 4521
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