Results 11 to 20 of about 1,891,682 (295)

Critical length parameter of HDPE and its use in fatigue lifetime predictions

Fracture and Structural Integrity
The contribution describes the fatigue lifetime predictions of polyethylene notched specimens based on the theory of critical distance. The approach uses the line method, which averages the axial stress over the critical distance.
Kamila Koz�kov�, Luk� Tr�vn�cek, Jan Podu�ka, Jan Klus�k   +3 more
doaj   +5 more sources

Combined notch and size effect modeling of metallic materials for LCF using plasticity reformulated critical distance theory

Journal of Materials Research and Technology, 2022
Fatigue assessment of notched parts plays imperative performance in structural integrity and reliability of major equipment. The theory of critical distance (TCD) involves determining the fatigue strength of notched parts from the linear elastic stress ...
Anteneh Tilahun Taddesse, Shun-Peng Zhu, Ding Liao, Jin-Chao He   +3 more
doaj   +1 more source

Inverse Ising inference, hyperuniformity and absorbing states in the Manna model [PDF]

, 2018
Using inverse Ising inference we show that the absorbing states of the one-dimensional Manna model can be described by an equilibrium model with an emergent interaction displaying short-ranged repulsion and long-ranged attraction. As the model approaches
Machon, Thomas
core   +3 more sources

Applications of the theory of critical distances in failure analysis [PDF]

Engineering Failure Analysis, 2011
Abstract The Theory of Critical Distances (TCD) is the name which I use to describe a group of methods employed for the prediction of failure in cases where stress concentrations are present and where the failure mode involves cracking, such as fatigue and brittle fracture. Some of these methods are more than 50 years old, some very recent.
openaire   +3 more sources

The fractal structure of the universe : a new field theory approach [PDF]

, 1998
While the universe becomes more and more homogeneous at large scales, statistical analysis of galaxy catalogs have revealed a fractal structure at small-scales (\lambda < 100 h^{-1} Mpc), with a fractal dimension D=1.5-2 (Sylos Labini et al 1996).
Balian R., Bouchet F. R., Castagnoli C., Coleman P. H., de Vega H., Di Nella H., Dubrulle B., Larson R. B., Martinez V. J., Pfenniger D., Scott E. L., Shapley H., Sylos Labini F., Sylos Labini F., Sylos Labini F., Totsuji H., White S. D. M., Wilson K. G., Wilson K. G., Wilson K. G.   +19 more
core   +3 more sources

A review on the application of the theory of critical distance towards concrete

MATEC Web of Conferences, 2018
Theory of Critical Distance (TCD) is one of Fracture Mechanics numerical model that has gone through tremendous laboratory works and validation. Hence, it has been proven to be precise in broad perspectives in the field. Recently, TCD research related to
Ahmad Shah Mohamad Shazwan, Noor Norhazilan, Kueh Ahmad Beng Hong, Tamin Mohd. Nasir   +3 more
doaj   +1 more source

The Theory of Critical Distances applied to multiscale toughening mechanisms [PDF]

Engineering Fracture Mechanics, 2019
Abstract The Theory of Critical Distances (TCD) is an approach used for predicting the effect of cracks and notches on fracture and fatigue behaviour. In recent years it has been successfully applied to a wide range of problems across all classes of materials.
openaire   +3 more sources

Estimation of fretting fatigue life using a multiaxial stress-based critical distance methodology [PDF]

Fracture and Structural Integrity, 2015
This work presents a methodology for life estimation of mechanical couplings subjected to fretting fatigue. In this approach, a stress-based multiaxial fatigue parameter is evaluated at a critical distance below the contact surface.
F. C. Castro, J. A. Araújo, M. S. T. Pires, L. Susmel   +3 more
doaj   +3 more sources

Generalization of the theory of critical distance to estimate lifetime of notched components in the medium-cycle fatigue regime [PDF]

MATEC Web of Conferences, 2019
This paper proposes a new and improved way to determine the dependency of the parameter that characterizes the process zone size ∫ with fatigue life Nf. Thus, unlike the classical approach, this approach has the advantage of allowing the construction of ...
Borges Rafael, Araújo José, Silva Cosme, Dias Jéssica, Ferreira Jorge   +4 more
doaj   +1 more source

THEORY OF CRITICAL DISTANCES AND THE THICKNESS OF THE SURFACE LAYER

, 2023
The theory of critical distances is based on the strength of materials L, which is given by its strength properties KIc and σ0. We have shown that the thickness of the surface layer R(I) is equal to the nanocrack length Lnm. We have shown that there is a relationship between L and Lnm: L = 104 Lnm = 104 R(I) ≈ 10-5 М/ρ.
Berdibekov, A.T., Yurov, V.M., Dolya, A.V., Gruzin, V.V.   +3 more
openaire   +1 more source