Mechanical Fracture Parameters of Extruded Polystyrene

Hana Šimonová; Barbara Kucharczyková; Zbyněk Keršner

doi:10.4028/www.scientific.net/KEM.776.160

Paper Titles

Influence of Hydrophobic Agent on Rheological Behavior of Historical Plaster. Part 2: External Temperature
p.133

Glass Micro-Bubbles as Additional Thermal Insulation/Shielding for Translucent and Non-Transparent Materials
p.140

Issue of Epoxy-Based Coatings System Crystallization and Effect of Partial Crystallinity on Mechanical Parameters
p.147

Methodology for Determination of the Requirement of Repair of External Facades of ETICS due to the Occurrence of Microorganisms
p.153

Mechanical Fracture Parameters of Extruded Polystyrene
p.160

Contribution to Solving the Damp Masonry of the Romanesque Church
p.167

The Church Microclimate Monitoring
p.177

Failures on Historical Buildings as a Result of Deterioration of the Foundations and the Subsoil
p.185

Rehabilitation of Historical Drainage and Ventilation System in the Prague Castle Area
p.191

HomeKey Engineering MaterialsKey Engineering Materials Vol. 776Mechanical Fracture Parameters of Extruded...

Mechanical Fracture Parameters of Extruded Polystyrene

Abstract:

Extruded polystyrene (XPS) is a material with applications in the building industry, where it is typically used as thermal insulation. Fracture experiments in the three-point bending configuration were conducted on XPS beam specimens with an initial stress concentrator made before testing. The nominal dimensions of the beams were 40 × 40 × 160 mm. The depth of the initial edge notch on the bottom side of the specimen was approximately 1/3 of specimen height. The span length was 120 mm. Load vs. displacement diagrams were recorded during fracture tests, and subsequently the modulus of elasticity (E), effective fracture toughness (K_Ice) and specific fracture energy (G_F) of the XPS were determined. The mean values obtained for the mechanical fracture parameters and coefficients of variation (number of specimens) were the following: E = 10.7 MPa, 9.2 % (7); K_Ice = 0.0547 MPa∙m^1/2, 16.7 % (3); G_F = 183.2 J∙m^–2, 34.3 % (3).

You might also be interested in these eBooks

Rehabilitation and Reconstruction of Buildings

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 776)

Pages:

160-163

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.776.160

Citation:

Cite this paper

Online since:

August 2018

Authors:

Hana Šimonová*, Barbara Kucharczyková, Zbyněk Keršner

Keywords:

Elastic Modulus, Fracture Parameters, Fracture Test, Polystyrene, Three-Point Bending

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Z. P. Bažant, J. Planas, Fracture and Size Effect in Concrete and Other Quasibrittle Materials, CRC Press, Boca Raton, (1998).

DOI: 10.1201/9780203756799

Google Scholar

[2] B. L. Karihaloo, Fracture Mechanics and Structural Concrete, Longman Scientific & Technical, New York, (1995).

Google Scholar

[3] P. Frantík, J. Mašek, GTDiPS software, 2015, http://gtdips.kitnarf.cz.

Google Scholar

[4] RILEM TC-50 FMC (Recommendation), Determination of the fracture energy of mortar and concrete by means of three-point bend test on notched beams, Materials & Structures, 18 (1985) 285–290.

DOI: 10.1007/bf02472918

Google Scholar

[5] B. L. Karihaloo, H. M. Abdalla, T. Imjai, A simple method for determining the true fracture energy of concrete. Magazine of Concrete Research, 55 (2003) 471–481.

DOI: 10.1680/macr.2003.55.5.471

Google Scholar

[6] V. Veselý, The Role of Process Zone in Quasi-brittle Fracture, Habilitation thesis, Brno, (2015).

Google Scholar