A 5-Parameter Isothermal Creep Model For Polymeric Liners

Date

2019-07-12

Author

Güner, Doğukan
Öztürk, Hasan

Metadata

Show full item record

Item Usage Stats

242
views

0
downloads

Polymeric materials are commonly used as load-carrying components in different structural applications due to the ease of manufacture, installation and long lifetime properties. In civil and mining engineering applications, fast-setting thin polymeric liners are in demand as areal support elements in underground openings. The stability of the openings is maintained by polymeric liners that might sustain the constant loads due to the presence of wedge blocks. Therefore, their time-dependent mechanical response requires a better understanding. There is limited research conducted on the creep modelling of polymeric liners. In this basis, this research aims to construct a new isothermal general creep behaviour model for polymeric support liners. 1-day cured creep tests results of polymeric liner were used to derive a new creep model with a combination of both Norton-Bailey and Kelvin creep models. The proposed model was also compared to the widely used creep models in literature. Since the acting stress on the liner depends on the block weight in field applications and the block weights are variable, a general creep model is developed to simulate the field behaviour of the liner under a wide range of constant stress levels. The proposed general model provides representative equations with comparably lower standard errors and this model might be used as an input for future numerical model studies in this field.

Subject Keywords

Time-Dependent Model, Creep, Tunnel, Rock Support, Norton-Bailey, Kelvin

URI

https://hdl.handle.net/11511/84479

Conference Name

Proceedings of GSRD International Conference (11 - 12 Temmuz 2019)

Collections

Department of Mining Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

A joint density functional and classical molecular dynamics study on interface characteristics of graphene and polyetheretherketone Sert, Elif; Toffoli, Hande; Department of Physics (2020-10-9) Graphene is a single layer allotrope of carbon with a honeycomb arrangement of atoms, characterized by excellent mechanical properties such as high tensile strength, high Young’s modulus as well as desirable electrical properties such as high electron mobility. Due to these superior properties, it is considered an important material in numerous technological applications. Among these, graphene-polymer composites have attracted significant interest in the materials research community in recent years. T...
FINITE ELEMENT SIMULATION ON TENSILE CREEP BEHAVIOUR OF UNDERGROUND SUPPORT LINER Güner, Doğukan; Öztürk, Hasan (2019-09-14) Polymer-based products are widely used as load-carrying components in different structural applications due to the ease of manufacture, installation, and long lifetime properties. In mining and tunnelling industry, fast-setting, thin polymer-based products are in demand as an underground support liner. Researchers have agreed that the time-dependent material properties of underground support liners have significance for short to long term applications. Although some creep tests were performed in literature,...
DEVELOPMENT OF POLYMER MATRIX COMPOSITES WITH TUNABLE DIELECTRIC PROPERTIES Özkaragöz, Nadire Nazlı; Dericioğlu, Arcan Fehmi; Department of Metallurgical and Materials Engineering (2022-2-08) Ferroelectric materials are used in different applications because of their superior electrical and dielectric properties. Ferroelectric materials are polarized when an electrical field is applied to the material. This spontaneous polarization continues even if an electrical field is removed. BST (Barium Strontium Titanate) is one of the attractive ferroelectric materials which has a high dielectric constant and low dielectric loss tangent (tanδ). High dielectric constant and low loss tangent are necessary ...
A density functional theory investigation of graphene-based materials Sayın, Ceren Sibel; Toffoli, Hande; Department of Physics (2014) Employability of graphene-based materials in various technological applications in order to exploit its exceptional properties is achieved/improved via their interactions with various atoms, molecules, nanostructures and surfaces. In this thesis, the interaction of cyclohexane and derived molecules, carbon nanotubes and metallic surfaces with both pristine and defected graphene structures are investigated using density functional theory.
A new formulation for the analysis of bonded elastic layers Pınarbaşı, Seval; Akyüz, Uğurhan; Department of Civil Engineering (2007) Elastic layers bonded to reinforcing sheets are widely used in many engineering applications, e.g., as elastic foundations to machinery, as seismic isolators to structures, etc. Because of its practical importance, the behavior of bonded elastic layers under some basic deformation modes (e.g., compression, bending and shear modes) has attracted the attention of many researchers. However, the analytical works available in literature involve, with the object of obtaining design formulas, many simplifying assu...

Citation Formats

D. Güner and H. Öztürk, “A 5-Parameter Isothermal Creep Model For Polymeric Liners,” presented at the Proceedings of GSRD International Conference (11 - 12 Temmuz 2019), Budapest, Macaristan, 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84479.