Development of multiple ordered fracture in an elastic homogeneous, structured and layered medium

Goldstein, R. V.; Осипенко, Н. М.

doi:10.1111/ffe.12239

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…For instance, Pham andRavi-Chandar (2014, 2016) and Pham (2015) designed different mode III fracturing tests on PMMA, and showed the generation of daughter cracks in addition to the parent (main) fracture. These findings along with the observations made by Zehnder and Zella (2015) from torsion tests on PMMA further confirm the previous observations of Goldstein and Osipenko (2012) and Goldstein and Osipenko (2014) about the development of facets or daughter cracks in true mode III fracturing. Literature also contains several studies to measure K IIIc of concrete (Bažant and Prat 1988;Golewski 2017), and metallic materials (Liu et al 2004;Zheng et al 2008;Song et al 2016).…”

Section: Unlike K Asupporting

confidence: 89%

True Mode $$\mathrm {III}$$ Fracturing of Rocks: An Axially Double-Edge Notched Brazilian Disk Test

et al. 2022

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A new test, referred to as axially double-edge notched Brazilian disk (ANBD), is proposed to measure true mode $$\mathrm {III}$$ III fracture toughness ($$K_{\mathrm {IIIc}}$$ K IIIc ) of rock materials. The term true denotes a shear-induced fracturing via self-planar crack extension as opposed to a twisted tension-based one commonly observed in many mode $$\mathrm {III}$$ III experiments of rocks. The ANBD test follows a straightforward procedure thanks to its simple core-based geometry and diametrical compression loading setup. Finite element analyses are employed to evaluate the stress intensity variations along the crack front and to calculate the point-wise stress intensity factors (SIFs) for different geometry and loading configurations. The results of ANBD tests conducted on granitic samples demonstrate the good performance of this test in yielding true mode $$\mathrm {III}$$ III fracturing. The influences of the test parameters of ligament length and loading angle on $$K_{\mathrm {IIIc}}$$ K IIIc are also investigated. A comparison study shows that $$K_{\mathrm {IIIc}}$$ K IIIc values are similar to $$K_{\mathrm {IIc}}$$ K IIc but almost 2.5 times greater than $$K_{\mathrm {Ic}}$$ K Ic . This demonstrates that the true mode $$\mathrm {III}$$ III test offers a similar shear-based fracturing mechanism to the true mode $$\mathrm {II}$$ II , which is significantly more energy-consuming than the tension-based mode $$\mathrm {I}$$ I failure type.

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Section: Unlike K Asupporting

confidence: 89%

True Mode $$\mathrm {III}$$ Fracturing of Rocks: An Axially Double-Edge Notched Brazilian Disk Test

et al. 2022

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“…The closer crack spacing is related: the transverse cracks locally reduce the magnitude of the maximum principal tensile stress that led to their creation. Smaller transverse cracks produce less stress relief; this means that, a short distance away, the maximum principal tensile stress again reaches the critical value required for another transverse crack to form [11,15,29,30]. Thus, the constraint on transverse crack size leads to both smaller transverse cracks and smaller spacing between them.…”

Section: Analysis Of Transverse Crackingmentioning

confidence: 99%