Effect of Self Stress on Flexural Strength of Gypsum-Polymer Composites

Tazawa, Ei-ichi

doi:10.1016/s1065-7355(97)00010-2

Cited by 18 publications

(12 citation statements)

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“…• The morphology depicted in Figure 1 is particularly well suited for a wide class of porous polycrystals. This was shown by Fritsch et al (2009b); Sanahuja et al (2010); Fritsch et al (2013); reporting that the homogenized Young's modulus normalized by the Young's modulus of the solid needle phases turned out to exclusively depend on the porosity, and that this dependence was very well confirmed by experimental data on hydroxyapatite (de With et al, 1981;Gilmore and Katz, 1982;Liu, 1998;Charrière et al, 2001), gypsum (Ali and Singh, 1975;Phani, 1986;Tazawa, 1998;Meille, 2001;Colak, 2006), piezoelectric ceramics (Craciun et al, 1998), alumina (Coble and Kingery, 1956;Pabst et al, 2004), zirconia (Pabst et al, 2004), silicon carbide (Reynaud et al, 2005), and silicon nitride (Díaz and Hampshire, 2004). In addition, such homogenized elasticity predictions were shown to be in excellent agreement with Finite Element simulations of "real" gypsum microstructures (Sanahuja et al, 2010).…”

Section: Discussionmentioning

confidence: 77%

Micromechanics of elastoplastic porous polycrystals: Theory, algorithm, and application to osteonal bone

Morin

Vass

Hellmich

2017

International Journal of Plasticity

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Section: Discussionmentioning

confidence: 77%

Micromechanics of elastoplastic porous polycrystals: Theory, algorithm, and application to osteonal bone

Morin

Vass

Hellmich

2017

International Journal of Plasticity

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“…as a monomer. This principle can be also applied for preparation of other bicontinuous systems of IPNs pattern, such as polymer-ceramics [4][5][6][7] or ceramics-metal [5]. The same principle was also applied in this work for preparation of two other IPNs systems, i.e.…”

Section: Introductionmentioning

confidence: 93%

Polymer Based Composites with Interpenetrating Networks Structure

Steller¹,

Kędziora²,

Trojanowska-Tomczak³

et al. 2013

ChChT

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Preparation and properties of composites consisting of two continuous interpenetrating phases, at least one of them is the polymer phase, are presented. Three different kinds of such composites are discussed: polymer-polymer (PVC-PMMA), polymer-mineral (PMMA-gypsum) and polymer-metal (PVC-Wood alloy). Composites were prepared by filling the porous matrix made of one component with other component in the liquid state which was then solidified by polymerization (PMMA) or cooling (Wood alloy). The obtained composites were characterized mainly by mechanical testing, e.g. elasticity modulus, flexural strength and Brinell hardness. In some cases other measurements, such as microscopic and electrical, were also carried out. It was found that obtained composites possess many interesting properties. The introduction of the second component into the matrix pores as a rule increases the mechanical properties by few times, even if its content is relatively small.

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“…1(b), the b-TCP crystals are of disk-type shape. A recent micromechanics study, 21 based on self-consistent estimates for infinitely many, spatially oriented crystal phases [22][23][24][25] and validated on a variety of ceramic material systems [26][27][28][29][30][31][32][33][34][35] has revealed the Young's modulus E of such disk-composed porous polycrystals to closely follow a power law relation with the (micro)porosity as argument,…”

Section: Microct Evaluation Iii: Micromechanics-based Microporositmentioning

confidence: 99%

Quantitative intravoxel analysis of microCT-scanned resorbing ceramic biomaterials – Perspectives for computer-aided biomaterial design

et al. 2014

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Driving the field of micro computed tomography toward more quantitative, rather than qualitative, approaches, we here present a new evaluation method, which uses the unique linear relationship between gray values and x-ray attenuation coefficients, together with the energy-dependence of the latter, to identify (i) the average x-ray energy used in the CT device, (ii) the x-ray attenuation coefficients, and (iii), via the x-ray attenuation average rule, the intravoxel composition, i.e., the microporosity, which, amongst others, governs the voxel-specific mechanical properties, such as stiffness and strength. The method is realized for six 3D tricalcium phosphate scaffolds, seeded with pre-osteoblastic cells and differentiated for 3, 6, and 8 weeks, respectively. The corresponding voxel-specific microporosities turn out to increase during the culturing period (resulting in reduced elastic properties, as determined from micromechanical considerations), while the overall macroporosity remains constant. The new methods are expected to further foster the development of a rationally based and computer-aided design of biomaterials and tissue engineering scaffolds.

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Effect of Self Stress on Flexural Strength of Gypsum-Polymer Composites

Cited by 18 publications

References 1 publication

Micromechanics of elastoplastic porous polycrystals: Theory, algorithm, and application to osteonal bone

Micromechanics of elastoplastic porous polycrystals: Theory, algorithm, and application to osteonal bone

Polymer Based Composites with Interpenetrating Networks Structure

Quantitative intravoxel analysis of microCT-scanned resorbing ceramic biomaterials – Perspectives for computer-aided biomaterial design

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