... Tension compression fatigue tests were carried out on notched specimens made of aluminum Alloys 2024 and 7010. For Alloy 2024, the specimens were submitted to an aeronautical spectrum developed from a transport aircraft spectrum using different percentages of low-level cycle omission (omission...

... is also briefly discussed. fatigue tests spectrum fatigue corrosion fatigue computer control crack growth closure compliance automation fatigue testing fracture testing Jussi Solin ~and Jukka Hdyrynen I Simulation of Mechanical and Environmental Conditions in Fatigue Crack Growth Testing...

... for several different materials. Furthermore, calculation with standard fatigue spectra (TWIST, MINITWIST, FALSTAFF) are given for a range of parameters. damage tolerance fatigue crack growth model stress spectra fatigue tests Daniel Aliaga,^ Alain Davy,^ and Hubert Schaff^ A Simple Crack Closure...

... A method of analysis for finding optimum shot peening specifications for given parts and loading conditions is explained. The method is applied to a part with fillets loaded in rotating bending. The computed optimum intensity is 9 C. Fatigue tests are reported which compare this intensity...

... increased the fatigue life by a factor of 20 as compared to that of conventionally welded cover plates. Replacing welds with adhesives and bolts virtually fatigue-proofs structural steel details subjected to highway bridge loading. fatigue tests steel adhesives bolts splices cover plates Pedro...

... and experimental corroboration of a local-strain life prediction method applicable to this and other structural fatigue problems. crack initiation design fatigue life prediction fatigue of metals fatigue tests local strain offshore platforms residual stress stress concentration stress relief vortex...

...-378A specimens and specimens with unloaded (open and filled) and loaded holes. Tests were conducted under room temperature, dry (RTD) and elevated temperature, wet (ETW) conditions. Plain specimens and specimens with open holes were also subjected to constant-amplitude fatigue tests at minimum...

... model. fatigue tests near-threshold tests computerized tests cryogenic tests Peter K. Liaw, William A. Logsdon, and Mustan H. Attaar Computerized Near-Threshold Fatigue Crack Growth Rate Testing at Cryogenic Temperatures: Technique and Results REFERENCE: Liaw, P. K., Logsdon, W...

... and low temperature on 2024-T3 to evaluate the effect of loading frequency on crack growth. The results indicated a faster crack growth rate at lower frequencies. crack growth fracture toughness low temperature aluminum fatigue tests Paul R. Abelkis, Marilyn B. Harmon, Elmer L. Hayman. Theron...

... computers test equipment fatigue tests titanium alloys Patrick M. Sooley^ and David W. Hoeppner^ A Low-Cost Microprocessor-Based Data Acquisition and Control System for Fatigue Crack Growtli Testing REFERENCE: Sooley, P. M. and Hoeppner, D. W., "A Low-Cost Microprocessor-Based Data Acqubltion...

... A method of performing torsional low cycle fatigue tests on thin-walled tubular specimens is described. Shear strains are measured and controlled using an internally mounted rotary variable differential transducer (RVDT). Test results for a 1045 hot-rolled and normalized steel are discussed...

... fatigue tests bending torsion Soon-Bok Lee^ A Criterion for Fully Reversed Out-ofPhase Torsion and Bending REFERENCE: Lee, S.-B., "A Criterion for Fully Reversed Out-of-Phase Torsion and Bending," Multiaxial Fatigue, ASTM STP 853, K. J. Miller and M. W. Brown, Eds., American Society for Testing...

... high-frequency fatigue tests do not provide accurate assessment of life for service loadings which occur at much lower rates. In many of these test programs, materials, lay-ups, and loading frequencies were selected to examine the effect of load frequency on matrix degradation and fatigue life...

.... formability mechanical properties mechanical tests fatigue tests bend tests fatigue (materials) deformation flexural strains accelerated testing specifications metal foils copper foil plating composite materials laminates W. Engelmaier^ A Method for the Determination of Ductility for Thin...

... to accommodate plane strain—that is, thickness effects—and surface roughness are discussed. fatigue tests fatigue of metals residual stress stress concentrations crack initiation weldments stress relief shot peening local strain H.S. Reemsnyder' Evaluating the Effect of Residual Stresses...

... Fatigue tests were carried out on fillet welded joints in four steels, with yield strengths ranging from 332 to 727 N/mm 2 , under various applied load ratios. Some specimens were stress-relieved but most were spot-heated to ensure that high tensile residual stresses, as would be present...

... of through-hardened materials are included to illustrate the variations obtained from different melting sources, heat treatments, and so on. bearings bearing alloys failure materials fatigue fatigue tests statistical analysis bearing steels K. L. Day^ Unisteel Testing of Aircraft Engine...

... The rolling contact (RC) fatigue test rig was developed specifically for rapid and inexpensive evaluation of materials and processes for rolling element bearing applications. The simple geometry of the test specimen, a cylindrical bar, makes it ideal for evaluating new materials where only...

... and nonconforming surfaces used in the element methods. These features are an apparently random groove formation and a material transformation and failure mode different from those of normal bearings. fatigue tests antifriction bearings bearing steels plastic deformation statistical analysis G. B...

... Low cycle fatigue (1cf) specimens of stainless steel DIN 1.4948, which is similar to AISI Type 304, have been irradiated to a relatively low fluence level of maximally 5.10 24 n.m −2 (E > 0.1 MeV) at temperatures ranging from 330 to 923 K. Post-irradiation fatigue tests at the conventional...