fatigue life

the mean velocity has slight impact on the wind-induced fatigue life of the structure.

Over the years, Boeing has probably accumulated more data on the fatigue life of airframes than any other plane-maker.

It has been found that residual stress and its distribution under the surface influence the fatigue life of work pieces.

The main content of this article is to predict the fatigue life of the body.

Fracture mechanics is adopted to estimate the fatigue life of structural members, and among the rest, crack growth rate formula is studied.

Those may cause serious disaster. Therefore, studying on ultimate strength and fatigue life of dented riser is of great significant.

The aim, as always, is to ensure that unpredictable factors do not reduce the fatigue life of a structure to less than that required.

Fatigue life of random vibration can be calculated by the fatigue life of sinusoidal vibration under first natural frequency.

The results of tests show that fatigue life of the components treated by laser irradiation can be considerably increased.

The technology of surface modification was an efficient way to increase fatigue life of the mainshaft bearing of the aircraft engines.

be able to extend the fatigue life of concrete, improve the process of concrete in fatigue stiffness retention capacity.

it was emphasized that the fatigue life of rock sample was influenced by stress amplitudes , waveforms and frequencies.

Numerical results showed that on this assumed condition, the smaller the tolerance of roundness is, the longer the fatigue life of hole.

This technique also can be applied to predicting fatigue life of other mechanical parts.

This paper presents the load spectrum and an engineering estimating method of the fatigue life of GRP blade of large-scale wind turbine.

The fatigue life of the coiled tubing also increases with the improvement of its tensile strength.

The fatigue life of welded tubular joints in offshore platforms is determined by the magnitude and the distribution of the hot spot stress.

Through experimental comparison, the new process method can significantly improve the contact fatigue life of the coating layer.

The results of tests show that fatigue life of steel specimens treated with laser cladding can be considerably increased.

The fatigue life of asphalt concrete could be appraised from different sides through different fatigue evaluation methods.

the relationship between the fatigue life of ferromagnetic material and the theory of metal magnetic memory has been studied.

Excessively long stroke impels few increase in pump efficiency and will effect the fatigue life of the whole pumping system.

Theory foundation may be provided by calculation results to analyze the rolling contact fatigue life of ceramic balls.

In addition, to ensure the safe operation of the body in a given period, it also called for the need to achieve the required fatigue life.

The fatigue life of the welding structure exhibits an exponential decay function of the welding angle.

The experimental results obtained show that suitable interference can certainly increase fatigue life in comparison with the push-fit case.

The results indicate that spring washer can extend the fatigue life of joints of composite laminates by the pre-tightening.

It is concluded that laser treatment is an efficient process to improve fatigue life of aeronautical structure steel.

Analysis results indicate that the intensity and rigidity of this drive axle housing is enough, fatigue life reach the national standard.

The stress, deformation and fatigue life of the optimal platen were compared with the original platen.

And also the sensitivity analysis was done to the several key factors influencing the fatigue life of the vane.

On the bases of this experimental method, the prediction and analysis of fatigue life can be convenience.

The rolling contact fatigue life and wear life of Silicon nitride ceramic balls are determined by critical stress in a way.

The results indicate that, the fatigue strengths ratio of the smooth and notched specimens decreases with the decrease of fatigue life.

And when internal pressure reaches a certain value, the fatigue life of coiled tubing will reduce rapidly.

The focal point of design lies in ensuring the consistency of fatigue life of testing sample and structural component.

and it is feasible to estimate the fatigue life of the overlay accurately by the theory of fatigue fracture mechanics.

An approximate method for evaluate fatigue life of structures under repeat random stress block is presented.

By the prediction of the fatigue life of typical specimen, the rule is verified.

Unfortunately, for a long time test method is the main method that people gain fatigue life of products.

In the strain-controlled test, the fatigue life of crack initiation is measured for the welded joint.

Within the range of coupling, the fatigue life exhibits linear relationship with the welding seam distance.

At the same time, the increasing ratcheting brought fatigue damage, which reduced fatigue life of the materials.

The results show that the fatigue life with fretting damage is markedly decreased compared with the fatigue life without fretting damage.

The application of crack growth approach to the analysis of fatigue life in rubber components is reviewed.

Eventually, the damage evolution and fatigue life of recycled concrete were investigated using the inverted-S damage model.

Thickness of the coating affects thermal fatigue life of the material.

Original uniform pressure on the coil compared to verify the optimized structural parameters of the fatigue life increased.

The result indicated that the working performance of this new hearing has been improved and its fatigue life has been increased 4 times.

Furthermore, the effect of solder ball layout and stress relax buffer layer material on the fatigue life of solder joints is studied.

Asphalt mixture fatigue life, cumulative dissipated energy and initial modulus data showed a logarithmic normal distribution.

Fatigue life of the YB-3 polymethyl methacrylate at room temperature is predicted by the continuum damage mechanics model.

A multiaxial fatigue life prediction model was built by means of the proposed multiaxial fatigue damage parameter.

On this basis, the software of fatigue life prediction application under random load has been designed by Windows operating system.

On this basis and by using correspondent fatigue criteria, fatigue life prediction of steel box girder of bridge was discussed.

The engineering estimation method of the fatigue life of largescale wind turbine GRP blade were presented.

To improve the fatigue life, reliability and quality of screw joint, the key point is to control the precision of pre-tightening force.

The linear relationship between the stress level and fatigue life is obtained for all laminates with impact damage.

A program for calculating fatigue loads, stresses and cumulative damages as well as fatigue life are compiled.

Relative to the repulsive despair of fatigue life is short, and the passage of time, actually should be self of celebration.

More importantly, the boom may find at the best conditions for pumping force, Boom improve fatigue life.

The method can provide references for the contact stress analysis and fatigue life calculation for gears of gearbox in fuel cell car.

In this view, a reliability testing technique with confidence level is presented which can estimate blading fatigue life more reasonably.

Tube's geometrical parameter in an important technical index which scales tube's fatigue life.

study on fatigue life of transmission line aeolian vibration based on the probability distribution of wind speed and direction.

The results showed that the resistance of fatigue life gage would change with the accumulative cyclic strain.

In random vibration testing, the first natural frequency in random spectra is very important for fatigue life of specimen.

The dislocation structures of metal materials experienced fatigue deformation are changed and the fatigue life is increased.

This conclusion may provide experimental evidence for fatigue life prediction and design of titanium alloy wing main beam.

The numerical results show that the gear contact fatigue life is connected with gear rotational velocity.

Basing upon this fuzzy estimation method, a fuzzy estimation expert system is designed for structural fatigue life.

By predicting the fatigue life of typical sample, the rule is verified.

Finally, according to the analysis result, at the most dangerous point where the biggest stress appears, the fatigue life is analyzed.

For steel box girder of Yangpu Bridge, fatigue stress monitoring and fatigue life prediction were implemented.

The application of finite element method on fatigue life analysis and general analysis process were presented.

The SCR fatigue life is highly sensitive to vessel heave, so an excellent vessel could relieve coupling movement notably.

The concrete fatigue life analysis methods of welding seams and spot joints in engineering structures were given.

The effect of welding condition on the fatigue life of the joints was analyzed.

commented on the estimative method for fatigue life of blade.

Grasp the mechanism the destruction rules, and estimate its fatigue life, it has the very vital significance in the field of engineering.

The strain-fatigue-life of materials is related to the plastic strain at the crack-tip.

In this study, the stress analysis and fatigue life analysis was conducted by ANSYS finite element analysis software.

Hydrogen embrittlement is not a major influence on fatigue life.

The fatigue life of welding structures includes technological life and service life.

The necessary condition in executing the welded structure fatigue life, the basic content and the method are discussed.

The key of analysis of damage tolerance is to estimate the residual fatigue life correctly.

In fact, the fatigue life of asphalt pavement varies a lot in different environmental areas.

The results are valid to evaluate car-body structure fatigue life at products design stage conveniently .

The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising.

In order to guarantee the reliability of vortex spring, the fatigue life of the vortex spring is analyzed in this paper.

A method is outlined for making low cycle fatigue life prediction for engineering components subject to multiaxial loading.

Then the design of flexure hinge, finite element and fatigue life analysis are described in detail.

The statistic of stress-chart is the key factor for both fatigue tests and fatigue life-span estimations.

At last, the corresponding analysis of surface structure and testing of fatigue life were given.

On the basis of calculation results, fatigue life was estimated by nominal stress approach.

An engineering calculation method of spot weld fatigue life prediction is introduced.

The fatigue life-span of key parts is computed and analyzed to find out the main reasons that lead to fatigue breach of parts.

fatigue life of drill pipe has been predicted by data analysis.

the final solution is obtained by making forecast and estimate of fatigue life-span on improved parts.

1%force fit level is best for prolonging fatigue life of jointing structure.

Finally, based on these, its fatigue life under impact load is evaluated, providing guidance for the improvement design of frame.

Using numerical method of SEP ( SEP -NCM), creep-fatigue life prediction under condition of tension-tension strees was performed.

All rig tests of fatigue life, tension intensity, bending intensity for auto drive axle.

A mean strain or prestrain , as in Fig. 83 , can under certain conditions reduce the subsequent fatigue life .

The feasibility of improving K417 fatigue life by surface shot peening and recrystallization was studied.

Impurities in its material affect the fatigue life.

An Analytical Formula for Calculating Fatigue Life?

The fatigue life is calculated with local stress and strain method under multiaxial condition.

The effect of fining treatment of carbide and grain on bearing steels fatigue life was investigated.

We can predict the fatigue life of structures under complex spectrum loading by the present model.

In addition, it should be stable and have required fatigue life in application.

The fractographs of specimen are analyzed by SEM, and the mechanism of fatigue life improvement is discussed.

makes the bituminous mixture the fatigue life to enhance near one time.

It is rare that in china the fatigue life of turbine disk was evaluated by the experiments of imitation specimen as far as I know.

The results show that the discrete of asphalt mixture specimen fatigue life and cumulative dissipated energy is very highly.

Corrosion results in decrease of metal fatigue life and overload can result in prolonging of fatigue life.

fatigue life compared to coarse-grained material in the as-received (T851) condition.

Based on the S-N curve of A356 aluminum alloy and factors of wheel fatigue life, parts of S-N curve was drawn.

The prediction model of coiled tubing fatigue life.

Finally, a fatigue life prediction equation for spot-welded joints is given based on fatigue testing data.

And at last, we obtain fatigue life prediction of the cylinder, life safety and hazardous location and some other factors.

The residual stress induced by LSP can prevent the crack's initiation and propagation very well, thus prolongs material's fatigue life.

Therefore, this paper choose a WQ6 flat top tower crane to estimate its fatigue life.

With the development of computer technology and finite element analysis, fatigue life analysis has been extensively developed.

Through testing it in order to grasp its fatigue life under different stresses level.

How fatigue life is predicted?

Therefore, it is necessary and feasible to explore the effect of gear rotational speed on the gear contact fatigue life.

In order to increase its carrying capacity and extend its fatigue life, it need to be autofrettaged.

As young ~! The fatigue life of people busy, trivial worries such as ants.

The fatigue life test is over.

In this paper, finite element method was used to study the ultimate strength and fatigue life of dented riser.

These are advantageous to improvement of precision of fatigue life and to standardize the counting and constructing spectrum.

So it is significant to study the fatigue life of the coupler and the coupler yoke.

At present , S-N curve and simulation are two main methods to predict fatigue life in our country.

Prediction of Fatigue Life of Pressure Hull Jointed with a Cone and a Cylinder by FEM

The control of Fatigue Life of the Guyed mast Structure Under the Wind Load

Probability Distribution of Fatigue Life of Notched Friction Welded Joints under Variable-amplitude Loading and Its Simulation

Reliability Simulation of Fatigue Life of the Contact Region of a Turbine Using Neural Network

Estimate of the Fatigue life of the axle used for mine elevator

The Wind Induced Fatigue Life's Prediction of the Ear Plate Connecting the Guy and Mast

Reconstruction of the Probabilistic S-N Curves Under Fatigue Life Following Lognormal Distribution With a Given Confidence

Counting Residual Fatigue Life of the Cylinder Bolts Used in the Super Pressure Compressor

Effect of Mechanical Vibration Welding on the Fatigue Life of a Weldment and Analysis of the Effect Mechanism

The Application of Comprehensive Service Flying Hour to the Failure Analysis of Corrosion Fatigue Life of Aircraft Components

Study of reliability fatigue life of cement concrete pump truck structure

Study on Characteristics of the Fatigue Life Curve and Its Application in Optimization of Automotive Components Fatigue Tests

Reliability Research for the Low Cycle Fatigue Life of a Turbine Disk

Reliability analysis method for the strain fatigue life of a disk

Research on Fatigue Life of Optical Solidification Composite Material for Aircraft Structure Damage

Influence of Recrystallized Layer on High Cycle Fatigue Life of Directionally Solidified Superalloy

Forecasting fatigue life of vehicles with practical fatigue characteristics of components and parts

Critical Conditions of Residual Stresses to Optimize Fatigue Life of Rolling Bearings in Superfinish Hard Turning

Metallurgical Quality and Contact Fatigue Life of Bearing Steel Produced by Continuous Casting and Ingot Casting

Sensitivity Analysis of Influencing Parameters on Fatigue Life of Aeroengine Compressor Disk

Fracture-mechanics analysis of the fatigue life of the pavement on orthotropic steel bridge decks

An experimental study on the fatigue life of prestressed concrete beams under random-amplitude fatigue loading

Technique about Evaluating the Fatigue Life of the Improved Main Components in Aircraft

Standard Test Method for Ambient Temperature Fatigue Life of Metallic Bonded Resistance Strain Gages

Scatter Factor Analysis Based on the Small Sample Fatigue Life of Weibull Distribution and Its Application

Results show that two-parameter Weibull function can he adopted to describe the bending fatigue life of porous concrete;

Prediction of contact fatigue life of rotary kiln supporting roller in condition of oblique compression

Experimental Study on Dimensional Stability and Fatigue Life of High-speed and Super-precision Bearings

Research on Load Calculation of Determining Fatigue Life of an Aircraft

The Analyzing Method for Fatigue Life of Aircraft Structures Under Corrosive Environment

A Practical and Reliable Numerical Method for Predicting the Safe Fatigue Life of Complex Structure System

Assessing the Residual Fatigue Life of the Cylinder Bolt in the Super Pressure Compressor

Computational Method and Influence factors of Reflection Crack's Fatigue Life of Asphalt Pavement

Factors Influencing Steel Wire Fatigue Life-Span and the Means of Improving Steel Wire Fatigue Life-Span

Verification of the Load Spectrum for Freight Car Couplers and Evaluation of Fatigue Life of No. 13 Couplers with Small Test Sample

Intelligent Analysis System for Precision Plastic Forming Process and Fatigue Life of Auto Parts

An Equivalent Relationship of the Perspex Fatigue Life Between the Natural and Artificial Aging

A Damage Function Used for Prediction of Low Cyclic Fatigue Life

Study on Fatigue Life Prediction of the Key Parts of Tracked Vehicles Suspension System

Finite element based solder joint fatigue life predictions for a same die stacked chip scale ball grid array package

Low Cycle Fatigue Life of Directionally Solidified Superalloy Turbine Blade

Prediction of High-Temperature Low-Cycle Fatigue Life of Aeroengine's Turbine Blades at Low-Pressure Stage

Influence of High-energy Peening Surface Nano-crystallization on Fatigue Life of Pure Titanium

Estimation of Fatigue Life of Submarine Pressure Hulls Using Random Model of Crack Propagation

Research on an efficient calculating method for fatigue life predicting under random loading

Research on the fatigue life of a Francis turbine runner

Experiment on correlation of residual strain around the hole and fatigue life cycle

A Technology of Laser Shot Processing Strengthening to Improve Fatigue Life of Components

Estimation on bending fatigue life of gears by considering load distribution among gear teeth

Stress Field Intensity Method Analysis on Fatigue Life of Aircraft Structural Detail

Research on Prediction of the Fatigue Life of Welding Structures on Freight Cars

Effects of Lubrication Additive on Contact Fatigue Life of Steel Bearing Rolling Element

The Characteristics of Dynamic Stress and Fatigue Life of Steam Turbine's Last Stage Blade under the Condition of Variable Load Operation

Analysing influence factors of fatigue life of tubing in pumping well by rupturing mechanics

Compute on Fatigue Life of Asphalt Concrete Pavement Reinforced by Polyester Fibers

A New Method to Predict Fatigue Life of Composite Laminate with Delaminating Effect Considered

Analysis and calculation of fatigue life of unconventional tubular joints

Analysis of Fatigue Life of Thick-Wall Cylinder with Inner Surface Crack Subjected to High Pressure

Optimum simulation and prediction on thermal fatigue life of soldered joints of QFP devices

Fatigue Life Test of the Lower Portion of a Main Fuselage - Wing Bulkhead

Estimation of fatigue life of pressure piping system under random excitations

Validation for Distribution Exponent of Fatigue Life of Rolling Bearings

Numerical analysis on thermal field and assessment on thermal fatigue life of material

Experimental Study on Correlation of Cyclical Strain on the Side of Hole with Fatigue Life Cycle

Non-Equilibrium Statistical Model About the Fatigue Life of Polycrystalline Metals

Computation of the Fatigue Life of Road Wheel with Double-Layer Rubber Flange

Middleware Technique and Its Implementation In Fatigue Life Prediction System

Fatigue Life Evaluation of a Circular Membrane in the Laminated Membrane Coupling

Main Technique Countermeasure to Raise Fatigue Life of Rolling Bearings

The method research on fatigue life analysis and reliability of the typical circuit board in random-vibration environment

Prediction for fatigue life of platform legs in corrosion damage conditions

The Application of Time Waveform Replication Technology in Automobile Component Fatigue Life Prediction

Visualization of Fatigue Life of Structures and Virtual Fatigue Design

Preliminary Investigation of Fatigue Life Probability Distribution for Two Domestic Turbine Disc Materials

Prediction of Fatigue Life of Railway Vehicle Welded Construction Based on Secondary Development Technology and Standard-AAR

The Influence of Reinforcement Point Welding on the Fatigue Life of Concrete Bridge

Development of an Electric Power Feedback Test Bench for Fatigue Life of Drive System

Calculation of Fatigue Life of Surface Cracks at Weld Toe of Submarine Cone- cylinder shell

Analysis of prolonging fatigue life of roller chain plate with crushing hole on chain plate

Improve Thermal Fatigue Life of Cast Steel Disk Component for Annealing Furnace

Predicting Fatigue Life in Consideration of Drill Stem Movement Behaviours

Neural network used in the prediction of the low-periodic fatigue life-span of materials

A FRP Cumulative Damage Model and Its Application to Fatigue Life Evaluation of Composite Laminates

Measurement and estimation of fatigue life of portal crane metal structure

Artificial Nerve Networks Application to Fatigue Life of Ductile Iron

Improving Low-Cycle Fatigue Life Reliability Sensitivity Analysis of Powder-Metallurgy Turbine Disk under Cyclic Loading

Effect of temperature cycling stress profile on the thermal fatigue life of solder joints of QFP

Prediction of Fatigue Life of 45 Steel Subjected to Quenching Tempering under Variable Amplitude Loading

Inquire into Relation between Heat Treatment Tech and Fatigue Life of Steel Wire Rope

Application of grey markov Chain model in prediction fatigue life of concrete

One method calculating fatigue life of carbon steel structural parts

Serviceability Simulation and Fatigue Life of Aged Steel Bridge

Relation Between Mechanics Property of Steel Wire for Rope and Fatigue Life of Wire Rope

Methods of Improving the Anti-fatigue Life of Threaded Connecting Pieces

Effects of Scratched Lines for Fatigue Life of Pressurized Fuselage Skin

Study on the Fatigue Life of the Tunnel Bed Structure under Train Loads

Estimation to Fatigue Life of Engineering Components

Predication of fatigue life of structure with random scan vibration

Fatigue life evaluation and test verification for civil aircraft structure under corrosive environment

Research on the Corrosion Damage and Fatigue Life of Freight Car-Body Structure

Strengthen Test for Fatigue Life of Double Row Angular Contact Ball Bearing

Effect of Excitation Force during Vibration Aging on Fatigue Life of White Cast Iron Parts

Two-dimension Load Spectrum and Fatigue Life Prediction for the Rear Axle of Light-truck

Estimation of Fatigue Life of Structures Under Random Loading

The results showed that: fatigue life significantly reduced as the maximum depth of dent increase;

Estimation of Fatigue Life of Lattice Crane with Finite Element Method

check the strength and the fatigue life of the main shaft;

Low-Cycle Fatigue Life Prediction of Single Crystal Nickel-Based Superalloys under Asymmetrical Cyclic Loading

Closed Form Solution of Damage Mechanics to Predict the Fatigue Life of Axially Symmetric Bars with Grooves

The Influence of Friction Coefficient on the Contact Fatigue Life of Gear

Finite Element Simulation and Fatigue Life Prediction for Compressor Bolt Connection Structure

Study on Ultrasonic Fatigue Life of Ultrasonic Probe with Alloy Steel

Analysis of Fatigue Life of Coiled Tubing with Three Dimension Stress

Research on Fatigue Life of Interference-fit Composite Joint

Fatigue Life Simulation of Key Components of Running Gear for a Self-propelled Gun

Practical Analysis Method for Fatigue Life of Welded Frame of Speed-up Bogie