Results 11 to 20 of about 1,902,120 (236)

Study of Local Fatigue Methods (TCD, N-SIF, and ESED) on Notches and Defects Related to Numerical Efficiency

Applied Sciences, 2023
The fatigue strength of structural components is strongly affected by notches and imperfections. Both can be treated similarly, as local notch fatigue strength methods can also be applied to interior defects.
Michael Stoschka, Michael Horvath, Stefan Fladischer, Matthias Oberreiter   +3 more
doaj   +1 more source

Fatigue Crack Initiation Life Prediction of Rails Using Theory of Critical Distance and Critical Plane Approach

Journal of Computational Science and Technology, 2012
Makoto AKAMA, Hiroyuki MATSUDA, Hisayo DOI, Masahiro TSUJIE   +3 more
openaire   +3 more sources

Requirements for stress gradient‐based fatigue assessment of notched structures according to theory of critical distance

Fatigue & Fracture of Engineering Materials & Structures, 2020
Notches, local stress raisers within structural components, are one of the most important locations for fatigue crack initiation. It is well known that fatigue is governed by the effective stresses in the vicinity of notches.
M. Braun, André Müller, Aleksandar-Saša Milaković, W. Fricke, S. Ehlers   +4 more
semanticscholar   +1 more source

A relationship between tensile strength and mode I fracture toughness of rocks using the critical distance

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
Correlations between material parameters are useful because they provide a first estimation of unknown parameters. Here, the correlation between the tensile strength and the mode I fracture toughness of rocks is studied.
Jon Justo, Marina Miranda, Jorge Castro
doaj   +1 more source

Analysis of critical safety distance between tunnel and concealing filled karst cave in the karst area

Carsologica Sinica, 2023
If the tunnel construction work is done in the karst area, the tunnel shall keep a certain distance from the karst cave to ensure the stability of the surrounding rock and support.
Wanfeng WANG, Yongtai YANG, Yuquan LU, Chujun ZHAO, Pengjie CUI, Junling QIU   +5 more
doaj   +1 more source

The application of the Theory of Critical Distances to nonhomogeneous materials

Fatigue & Fracture of Engineering Materials & Structures, 2023
AbstractThe Theory of Critical Distances (TCD) has undoubtedly represented a breakthrough in the brittle failure assessment of engineering materials containing defects, crack, or notches. The basic idea on which the simplest formulation of the TCD is based is to evaluate an effective stress at a characteristic distance from the tip of the defect/crack ...
Liviu Marsavina, Alberto Sapora, Luca Susmel, David Taylor   +3 more
openaire   +2 more sources

Research on Fatigue Life Prediction Method of Key Component of Turning Mechanism Based on Improved TCD

Metals, 2022
The main objective of this paper is to accurately obtain fatigue life prediction for the key components of a turning mechanism using the improved theory of critical distances (TCD).
Tingting Wang, Han Zhang, Yuechen Duan, Mengjian Wang, Dongchen Qin   +4 more
doaj   +1 more source

Critical distance-based fatigue life evaluation of blunt notch details in steel bridges

Journal of constructional steel research, 2023
Orthotropic steel deck (OSD) is applied on many bridges around the world, but its drawback of being prone to fatigue has been a concern due to the damages observed.
R. Hao, P. Lehto, Weiwei Lin
semanticscholar   +1 more source

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

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