Crack tip fields in anisotropic planes: a review

MR Ayatollahi, M Nejati, S Ghouli - International Journal of Fracture, 2022 - Springer
This paper reviews crack tip asymptotic fields in generic plane anisotropic media, rigorously
categorising about 400 studies devoted to the determination of the asymptote coefficients …

Experimental research on the dynamic propagation process of mode I cracks in the rock under directional fracture blasting using the strain gauge method

Q Li, ZH Gao, WL Xu, K Wang, S Liu, GF Ran… - Engineering Fracture …, 2020 - Elsevier
Based on the directional fracture blasting experiment of polymethyl methacrylate (PMMA)
specimens and combined with an analysis of the strain field around the dynamic crack tip, a …

In-situ microscale visualization experiments on microcracking and microdeformation behaviour around a pre-crack tip in a three-point bending sandstone

Y Lu, W Li, L Wang, X Meng, B Wang, K Zhang… - International Journal of …, 2019 - Elsevier
A new microscale visualization experimental system is proposed for in-situ measurement of
microcracking and microdeformation behaviour of macroscopic specimens during real-time …

Strain gauge experimental study on mode I rock fracture characteristics under impact loading

Q Li, C Huang, Z Gao, K Wang, W Xu, H Li - Engineering Fracture …, 2021 - Elsevier
Based on the analysis of the strain field of the dynamic crack tip under impact loading, a
specific acute (obtuse) angle multi-point strain gauge method is proposed to study the mode …

Effect of explosive stress waves on the crack propagation in the defective medium using strain gauge method

Q Li, ZH Gao, Q Yu, C Huang, K Wang… - KSCE Journal of Civil …, 2022 - Springer
Based on the complex variable function theory, the test principle of the strain gauge method
(SGM) at specific orientation angles were proposed, and the dynamic caustic method (DCM) …

An examination of techniques based on two strain gages for the determination of mode I stress intensity factor in orthotropic composite materials

F Mejni, A Talha - Theoretical and Applied Fracture Mechanics, 2024 - Elsevier
In this work, we have examined the single strain gage technique proposed by Chakraborty
et al.(2014)(CMC1) for the accurate determination of mode I stress intensity factor (SIF) in …

A strain gage technique for the determination of mixed mode stress intensity factors of orthotropic materials

D Chakraborty, D Chakraborty, K Murthy - Composite Structures, 2017 - Elsevier
A theoretical frame work is developed for strain gage based determination of mixed mode
(KI/K II) stress intensity factors (SIFs) in slant edge cracked plate (SECP) made of orthotropic …

Interaction and initiation mechanism of non-parallel multiple cracks by strain gauge method

Q SHEN, D HUANG, Q RAO, YI Wei, D SUN… - … of Nonferrous Metals …, 2024 - Elsevier
The maximum stress intensity factors, KI, kmax (θ) and K II, kmax (θ), of three non-parallel
oblique cracks were calculated to reveal the interaction mechanism of multiple cracks. The …

Effect of material orthotropy on the notch stress intensity factors of sharp V-notched plates under tension

M Zappalorto, M Ricotta - Theoretical and Applied Fracture Mechanics, 2019 - Elsevier
In this paper, an analytical and numerical study is carried out on the role played by the
elastic properties of orthotropic materials on the Notch Stress Intensity Factors (NSIFs) of …

Mixed-mode fracture investigation of PMMA with initial single/double crack (s) interference using phase-shifted coherent gradient sensing method

K Ma, H Xie - Polymer Testing, 2017 - Elsevier
Phase-shifted coherent gradient sensing (CGS) was used to investigate the mixed-mode
fracture of brittle polymer material. A previously developed phase shifting method for …