...., 2001, “Experimental Analysis of the Interaction of Hot and Cold Volume Elements During Thermal Fatigue of Cooled Components Made From AISI 316 L Steel,” Z. Metallkunde, 92 , pp. 875–881 and Rau et al., 2003, “Isothermal Thermo-mechanical and Complex Thermo-mechanical Fatigue Tests on AISI 316 L Steel...

... brazed using BNi-9 braze alloy. X-40 and IN-738 were used as additive materials in wide gap braze joints. To characterize the fatigue properties of the braze joints and parent material, isothermal fatigue tests were conducted at 950 ° C and under load control using a fully reversed sinusoidal wave form...

... operation, based on finite element stress analysis results. It is necessary to establish the life prediction method of these superalloys under biaxial fatigue loading for reliable operations. In this study, the in-plane biaxial fatigue tests with different phases of x and y directional strain cycles were...

..., such as modulus, hardness, microstructural conditions including the interface, and bond strength, were determined. Tensile and high-cycle fatigue tests on coated and uncoated specimens indicate that the presence of the coatings has no negative effects but has a positive influence on the high-cycle fatigue...

.... 08 04 2009 15 04 2009 10 05 2010 10 05 2010 aerospace engines blades compressors fatigue testing finite element analysis nickel alloys test equipment titanium alloys wear Aeroengines incorporate a large number of mechanical joints, for which fretting fatigue...

... aerospace engines blades fatigue testing gas turbines life cycle costing military aircraft High-performance aircraft, as used in modern aviation, especially for military purposes, are complex in design and are required to operate under severe stresses...

.... The method can take factors such as geometry, volume, especially cast procedures, etc., into creep-fatigue life assessment. Principle and design of the test rig are fully explained. Creep-fatigue tests of turbine blades made of DZ4 alloy (one type of DS alloys) were conducted and test data were analyzed...

... 11 01 2008 aluminium cast iron engines fatigue cracks fatigue testing life testing thermal stress cracking thermomechanical treatment Due to today’s demands to reduce cost and product time to market, engineering procedures are increasingly using more sophisticated simulation...

...Tommy J. George; M.-H. Herman Shen; Theodore Nicholas; Charles J. Cross A new vibration-based multiaxial fatigue testing methodology for assessing high-cycle turbine engine material fatigue strength at various stress ratios is presented. The idea is to accumulate fatigue energy on a base-excited...

... value. The effects of corrosion are often further exacerbated by the presence of FOD or erosion. The effect of active corrosion (during fatigue cycling) on HCF behavior was monitored by exposing the thick section bend specimens to a corrosive medium during fatigue tests. A chemical-free absorbent...

... finite element analysis stress-strain relations fatigue testing creep cracks To improve gas turbine efficiency the operating temperatures have steadily increased. This makes greater demands on the structural integrity of the gas turbine components, especially the turbine blades and vanes...

.... Evaluations of DARWINTM by engine manufacturers are also discussed, including comparisons with existing codes for accuracy and time efficiency. In addition, relevant test results, including various fatigue tests on material containing melt-related anomalies, are summarized. Recent progress...

... of a vibration based fatigue testing procedure to achieve low cost bending fatigue experiments and (2) development of a life prediction and estimation implementation scheme for calculating effective fatigue cycles. A series of fully reversed bending fatigue tests were carried out using a vibration-based testing...

... engine high-cycle fatigue test and evaluation methods has been presented. A recent test utilizing these methods has been assessed using supplemental approaches that have shown that there is potential for significant uncertainty or error in the determination of component HCF capability. This work...

.... 2000. Associate Editor: D. Wisler. 08 May 2000 01 Nov 1999 01 Feb 2000 24 09 2002 gas turbines performance evaluation fatigue testing computerised monitoring compressors Even under the best possible operating conditions, the performance of a gas turbine...

... analysis fatigue testing failure (mechanical) gas turbines ceramics materials testing The design of ceramic components for structural applications can be very challenging. Often ceramic components are expected to exceed reliability standards which the metallic components they are replacing...

... fatigue testing failure (mechanical) nickel alloys superalloys gas turbines aircraft engines High cycle fatigue (HCF) induced failures in aircraft gas turbine engines is a pervasive problem affecting a wide range of components and materials. HCF is currently the primary cause of component...

... 03 January 2000 ceramics mechanical testing gas turbines composite particles creep testing fatigue fatigue testing creep manufacturing processes costing Features of different CMC fabric reinforcements Mechanical testing has been an ongoing part...

... Technical Editor: R. Kielb. 02 June 1998 25 February 1998 20 October 1999 fatigue testing polymers tensile testing carbon fibre reinforced composites compressive strength crystal microstructure failure analysis high-temperature effects Current objectives...