An analytical approach to deduce loading rate-sensitivity of fracture mode of concrete and mortar

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An analytical approach to deduce loading rate-sensitivity of fracture mode of concrete and mortar. / Lukashov, R.; Volkov, G.

In: International Journal of Impact Engineering, Vol. 187, No. 104915, 104915, 01.05.2024.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{44610d3345914856862f76dca46481a0,

title = "An analytical approach to deduce loading rate-sensitivity of fracture mode of concrete and mortar",

abstract = "The fracture of two-component solids is considered in order to study the sensitivity of the failure mode to the loading rate. The incubation time approach, supplemented by the randomized Sign-Perturbed Sums (SPS) method, is applied to develop an analytical model to predict the difference in the fracture pattern under dynamic and static conditions. To verify and validate the model, experimental data of dynamic tests on concrete, mortar and granite aggregate are analyzed. It was demonstrated that the model indicates the change in the failure mode for inhomogeneous material such as concrete, while the analysis results for pure granite do not predict the same phenomenon. The results obtained are in agreement with the experimentally observed change in the fracture mechanism of concrete from transgranular to intergranular as the loading rate decreases. Thus, it was shown that the developed model is able to predict the change of the fracture mechanism with the increase of the loading rate. {\textcopyright} 2024 Elsevier Ltd",

keywords = "Dynamic strength, Strain rate sensitivity, Transgranular and intergranular fracture mode, Incubation time criterion",

author = "R. Lukashov and G. Volkov",

note = "Export Date: 04 March 2024; Cited By: 0; CODEN: IJIED",

year = "2024",

month = may,

day = "1",

doi = "10.1016/j.ijimpeng.2024.104915",

language = "English",

volume = "187",

journal = "International Journal of Impact Engineering",

issn = "0734-743X",

publisher = "Elsevier",

number = "104915",

}

RIS

TY - JOUR

T1 - An analytical approach to deduce loading rate-sensitivity of fracture mode of concrete and mortar

AU - Lukashov, R.

AU - Volkov, G.

N1 - Export Date: 04 March 2024; Cited By: 0; CODEN: IJIED

PY - 2024/5/1

Y1 - 2024/5/1

N2 - The fracture of two-component solids is considered in order to study the sensitivity of the failure mode to the loading rate. The incubation time approach, supplemented by the randomized Sign-Perturbed Sums (SPS) method, is applied to develop an analytical model to predict the difference in the fracture pattern under dynamic and static conditions. To verify and validate the model, experimental data of dynamic tests on concrete, mortar and granite aggregate are analyzed. It was demonstrated that the model indicates the change in the failure mode for inhomogeneous material such as concrete, while the analysis results for pure granite do not predict the same phenomenon. The results obtained are in agreement with the experimentally observed change in the fracture mechanism of concrete from transgranular to intergranular as the loading rate decreases. Thus, it was shown that the developed model is able to predict the change of the fracture mechanism with the increase of the loading rate. © 2024 Elsevier Ltd

AB - The fracture of two-component solids is considered in order to study the sensitivity of the failure mode to the loading rate. The incubation time approach, supplemented by the randomized Sign-Perturbed Sums (SPS) method, is applied to develop an analytical model to predict the difference in the fracture pattern under dynamic and static conditions. To verify and validate the model, experimental data of dynamic tests on concrete, mortar and granite aggregate are analyzed. It was demonstrated that the model indicates the change in the failure mode for inhomogeneous material such as concrete, while the analysis results for pure granite do not predict the same phenomenon. The results obtained are in agreement with the experimentally observed change in the fracture mechanism of concrete from transgranular to intergranular as the loading rate decreases. Thus, it was shown that the developed model is able to predict the change of the fracture mechanism with the increase of the loading rate. © 2024 Elsevier Ltd

KW - Dynamic strength

KW - Strain rate sensitivity

KW - Transgranular and intergranular fracture mode

KW - Incubation time criterion

UR - https://www.mendeley.com/catalogue/b984c91e-5c85-326f-a86b-1020ee50f0e3/

U2 - 10.1016/j.ijimpeng.2024.104915

DO - 10.1016/j.ijimpeng.2024.104915

M3 - Article

VL - 187

JO - International Journal of Impact Engineering

JF - International Journal of Impact Engineering

SN - 0734-743X

IS - 104915

M1 - 104915

ER -

ID: 117311925