Results 81 to 90 of about 95,930 (215)

The analysis of fatigue crack growth mechanism and oxidation and fatigue life at elevated temperatures [PDF]

Two quantitative models based on experimentally observed fatigue damage processes have been made: (1) a model of low cycle fatigue life based on fatigue crack growth under general-yielding cyclic loading; and (2) a model of accelerated fatigue crack ...
Liu, H. W.
core   +1 more source

Numerical Simulations of Stress Intensity Factors and Fatigue Life in L-Shaped Sheet Profiles

Metals
The assessment of fatigue cracks is an elementary part of the design process of lightweight structures subject to operational loads. Although angled sheets are standard components in forming technology, fatigue crack growth in geometries like C- and L ...
Ferdinand Dömling, Florian Paysan, Eric Breitbarth   +2 more
doaj   +1 more source

Analysis of a turbine rotor containing a transverse crack at Oak Creek Unit 17 [PDF]

, 1982
Transient increases in one, two and three per revolution vibration characteristics of a low pressure steam turbine were observed during steam temperature reduction operations.
Kottke, J. J., Menning, R. H., Rau, C. A., Jr., Rogers, G. W.   +3 more
core   +1 more source

Mode I+II Fatigue Crack Growth Delay by Stop-Holes

Journal of Aerospace Technology and Management, 2018
The technique of retarding the growth of fatigue cracks by drilling holes on the crack tip is well known. Most of the research works on this subject are limited to fatigue cracks subjected to mode I loading conditions.
Dimitrios G. Pavlou
doaj  

Probabilistic Fatigue Crack Growth Prediction for Pipelines with Initial Flaws

Buildings
This paper presents a probabilistic method to predict fatigue crack growth for surface flaws in pipelines using a particle filtering method based on Bayes theorem.
Youngjin Choi, Seung-Jung Lee
doaj   +1 more source

The growth of small corrosion fatigue cracks in alloy 2024 [PDF]

The corrosion fatigue crack growth characteristics of small surface and corner cracks in aluminum alloy 2024 is established. The damaging effect of salt water on the early stages of small crack growth is characterized by crack initiation at constituent ...
Piascik, Robert S., Willard, Scott A.
core   +1 more source

Aspects of fracture mechanics in cryogenic model design. Part 1: Fundamentals of fracture mechanics [PDF]

, 1983
The use of fracture mechanics for predicting fracture and fatigue crack growth in metals is ...
Hudson, C. M.
core   +1 more source

Short fatigue crack growth in welded joints described by the effective cyclic J-integral

MATEC Web of Conferences, 2018
The purpose of the present contribution is to predict the fatigue life of welded joints by using the effective cyclic J-integral as crack driving force.
Tchoffo Ngoula Désiré, Vormwald Michael   +1 more
doaj   +1 more source

Modeling of crack bridging in a unidirectional metal matrix composite [PDF]

The effective fatigue crack driving force and crack opening profiles were determined analytically for fatigue tested unidirectional composite specimens exhibiting fiber bridging. The crack closure pressure due to bridging was modeled using two approaches;
Ghosn, Louis J., Kantzos, Pete, Telesman, Jack   +2 more
core   +1 more source

Application of local and non-local approaches to multiple fatigue crack initiation and propagation [PDF]

, 2003
Fatigue strength conditions presented in terms of normalized equivalent stress functionals defined on loading processes are used to unite the stages of material damage with fatigue crack initiation and multiple crack propagation under arbitrary loading ...
Mikhailov, SE, Namestnikova, IV
core