Modeling of porosity in hydroxyapatite for finite element simulation of nanoindentation test

Naderi, Sadjad; Dabbagh, Ali; Hassan, Mohsen A.; Razak, Bushroa Abdul; Abdullah, Hadijah; Kasim, Noor Hayaty Abu

doi:10.1016/j.ceramint.2016.01.161

Cited by 15 publications

(10 citation statements)

References 19 publications

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“…Nanoindentation, which only requires a small sample volume, is a technique to detect the local mechanical properties such as Young's modulus and hardness of the materials. This method has been widely used in material science research such as films, biological tissues and other cement-based materials (Naderi et al, 2016;Tanguy et al, 2016;Xiao et al, 2015). In recent years, researchers began to use this method in studying the mechanical properties of shale formations (Kumar et al, 2012;Mason et al, 2014;Shukla et al, 2013), however, they limited their studies only in measuring Young's modulus and hardness.…”

Section: Introductionmentioning

confidence: 99%

Applications of nano-indentation methods to estimate nanoscale mechanical properties of shale reservoir rocks

Liu

Ostadhassan

Bubach

2016

Journal of Natural Gas Science and Engineering

168

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In order to study the mechanical properties of shale samples from Bakken Formation, nanoindentation method, an imaging technique borrowed from other engineering disciplines, was used. Different types of nanoindentation curves were analyzed and the applicability of the nanoindentation theories to study mechanical properties of shale samples at nanoscale was demonstrated. Elastic modulus and Hardness of different samples were calculated, compared and related to their mineral compositions and microstructures which are detected by 2D XRD and FESEM methods, respectively. Results showed that samples with more clay minerals (mainly composed of illite) and larger pore structures have less Young's modulus. In addition, based on the energy analysis method, the fracture toughness at nanoscale was estimated and its relationships with Young's modulus was quantified. It was observed that fracture toughness increases linearly with Young's modulus. This paper presents the results and major findings of this study.

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Section: Introductionmentioning

confidence: 99%

Applications of nano-indentation methods to estimate nanoscale mechanical properties of shale reservoir rocks

Liu

Ostadhassan

Bubach

2016

Journal of Natural Gas Science and Engineering

168

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“…The procedure proposed by Oliver and Pharr [27,28] can be used to deduce the hardness and elastic moduli of various materials, and other indentation-based procedures have been proposed to investigate other mechanical parameters, such as fracture toughness [29,30], fatigue and impact testing [31]. Nowadays, nanoindentation technique is a very powerful method to investigate the mechanical properties of biomaterials [32,33], metals [34], ceramics [35], polymers, and composites [36].…”

Section: Concept Of Nanoindentationmentioning

confidence: 99%

Mechanical and Heterogeneous Properties of Coal and Rock Quantified and Mapped at the Microscale

Sun

Zhang

et al. 2020

Applied Sciences

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Due to the impossibility of obtaining intact standard experimental samples, it is difficult to test the mechanical properties of soft and broken coal and rock obtained from deep coal mines. So, an advanced experimental technology based on a small sample volume, nanoindentation technology, was introduced and used to measure the mechanical parameters of them. By using the averaging method, the hardness of shale, mudstone and coal are 1191.90 MPa, 674.95 MPa and 424.30 MPa, respectively; their elastic moduli are 20.39 GPa, 11.72 GPa and 5.47 GPa; and their fracture toughness were 1.66 MPa·m0.5, 1.28 MPa·m0.5 and 0.77 MPa·m0.5. These three mechanical parameters were used to quantify and map the heterogeneous properties of coal and rock for convenience and accuracy. For example, the inter quartile range (IQR) of the hardness of shale, mudstone, and coal are 1502.10 MPa, 1016.20 MPa and 54.64 MPa, respectively, meaning that coal has the best homogeneity among them. Nanoindentation technology provides researchers with a convenient method to conduct mechanical experiments at the microscale.

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“…Nanoindentation is a very effective method to study the micro-and nanomechanical properties of materials [1,2,[5][6][7]. In recent years, researchers have begun to use this method to study the mechanical properties of rocks.…”

Section: Introductionmentioning

confidence: 99%

Evaluation Method of Granite Multiscale Mechanical Properties Based on Nanoindentation Technology

et al. 2021

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In order to study the mechanical properties of granite at the micro- and nanoscale, the load-displacement curve, residual indentation information, and component information of the quartz, feldspar, and mica in granite were obtained using a nanoindentation test, a scanning electron microscope (SEM), and X-ray diffraction (XRD). The elastic modulus and the hardness of each component of the granite were obtained through statistical analysis. Treating rock as a composite material, the relation between the macro- and microscopic mechanical properties of rock was established through the theory of micromechanical homogenization. The transition from micromechanical parameters to macromechanical parameters was realized. The equivalent elastic modulus and Poisson’s ratio of the granite were obtained by the Self-consistent method, the Dilute method, and the Mori-Tanaka method. Compared with the elastic modulus and the Poisson ratio of granites measured by a uniaxial compression test and the available data, the applicability of the three methods were analyzed. The results show that the elastic modulus and hardness of the quartz in the granite is the largest, the feldspar is the second, the mica is the smallest. The main mineral contents in granite were analyzed using the semiquantitative method by XRD and the rock slice identification test. The elastic modulus and the Poisson ratio of granite calculated by three linear homogenization methods are consistent with those of the uniaxial compression test. After comparing the calculation results of the three methods, it is found that the Mori-Tanaka method is more suitable for studying the mechanical properties of rock materials. This method has an important theoretical significance and practical value for studying the quantitative relationship between macro- and micromechanical indexes of brittle materials. The research results provide a new method and an important reference for studying the macro-, micro-, and nanomechanical properties of rock.

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Modeling of porosity in hydroxyapatite for finite element simulation of nanoindentation test

Cited by 15 publications

References 19 publications

Applications of nano-indentation methods to estimate nanoscale mechanical properties of shale reservoir rocks

Applications of nano-indentation methods to estimate nanoscale mechanical properties of shale reservoir rocks

Mechanical and Heterogeneous Properties of Coal and Rock Quantified and Mapped at the Microscale

Evaluation Method of Granite Multiscale Mechanical Properties Based on Nanoindentation Technology

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