Investigation of Stationary Solutions of Viscoelastic Melt Spinning Equations and Stability With Respect to Increasing Viscoelasticity

Dhadwal, Renu; Kudtarkar, Santosh Kumar

doi:10.3846/1392-6292.2010.15.287-298

Cited by 1 publication

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As we know, in case of majority of materials, various criteria are introduced and widely used to predict failure's initiation and to evaluate elastic, plastic and post-yielding behaviour of materials (Kargaudas, Adamukaitis 2010;Petkevičius, Valivonis 2010;Dhadwal, Kudtarkar 2010). For instance, Plane Griffith crack theory is one of theoretical criterion, which considers tension as the main important reason of crack initiation; and a variety of empirically developed criteria are available for predicting failure initiation (Lakirouhani, Hasanzadehshooiili 2011).…”

Section: Introductionmentioning

confidence: 99%

Evaluating Elastic-Plastic Behaviour of Rock Materials Using Hoek–brown Failure Criterion

Hasanzadehshooiili

Lakirouhani

Medzvieckas

2012

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

As a matter of fact, the failure criteria only predict failure's initiation in materials. And, in order to predict post-yield behaviour of materials, a much complicated formulation for stress-strain relationship is required, which we know as plasticity theory. For instance, these formulations are developed based on Mohr-Coulomb criterion for soils and Drucker-Prager criterion for concrete. According to a majority of rock mechanics researchers, the empirical and experimental Hoek-Brown failure criterion is one of the well-progressed and suitable criteria, which can efficiently predict the rock failure initiation under different stress states for various types of intact rocks and rock masses. In this article, according to the suggestion by Heok explained in his paper of 1997, this rugged mentioned criterion is considered as a yield criterion and the elastic-perfect plastic behaviour of rock masses is determined using calculating material constitutive matrix's arrays in terms of Hoek-Brown's material constants and mechanical characteristics of rock materials in the general stress space, considering associated flow rule.

show abstract

Section: Introductionmentioning

confidence: 99%