... 07 12 2010 19 01 2012 19 01 2012 alloys creep design engineering fatigue testing internal stresses pressure vessels tensile strength A number of alloys have applications slightly into the creep range that are in cyclic service, such as process reactors. The 2007...

...Bopit Bubphachot; Osamu Watanabe; Nobuchika Kawasaki; Naoto Kasahara Crack initiation and propagation process of fatigue test in semicircular notched plates at elevated temperature were conducted under strain-controlled condition in order to study the crack initiation/propagation/coalescence...

...: Fracture Performance Tests-Monotonic Burst Tests ,” The International Standards Organization, Geneva, Switzerland. 17 10 2009 07 03 2010 19 10 2010 19 10 2010 alloy steel fatigue cracks fatigue testing reliability shapes (structures) tanks (containers) Seamless...

... 2009 23 12 2009 23 12 2009 echo fatigue cracks fatigue testing finite difference time-domain analysis fracture toughness testing notch strength spatial variables measurement structural engineering ultrasonic arrays ultrasonic measurement phased array ultrasound finite...

... 12 05 2008 07 04 2009 bending strength cracks crude oil failure (mechanical) fatigue fatigue testing pipes test equipment The primary objective of the research endeavor described in this paper was to compare the fatigue strength of epoxy fiberglass composite pipes...

... creep creep testing fatigue cracks fatigue testing welding An assessment of creep-fatigue crack initiation and growth is of key importance for the evaluation of a high temperature structural integrity of a reactor structure such as the liquid metal reactor KALIMER (Korea advanced liquid...

... the 0.2% proof stress. 07 08 2006 12 01 2008 01 12 2008 elastoplasticity fatigue testing standards stress-strain relations The EN 13445 standard ( 1 ) proposes, in the Part 3-Clause 18, procedures for fatigue analysis of unwelded material based on strain-life data...

.... This method is an extension of probabilistic fracture mechanics approach but is capable of modeling crack initiation, crack propagation, and crack depth density distribution at a given cycle. To verify the methodology, crack depth distribution observed in thermal fatigue test specimens was evaluated...

... of weld endurance tests, where reverse bending is interrupted by creep dwell periods. The weld and parent material are both Type 316L(N) material, and data were available for fatigue tests and tests with 1 and 5 h dwell periods to failure. The elastic, plastic, and creep behavior of the weld geometry...

... configuration is related to the tensile weld residual stress field in accordance with the detrimental effect of tensile mean stress on fatigue life. However, these results are in apparent contradiction with the material uniaxial fatigue tests, where a beneficial effect of tensile mean stress is observed in load...

... the possibility of fitness for purpose assessments of thermal shock cracks when they are found in-service. 09 08 2005 01 03 2006 thermal stress cracking pressure vessels carbon steel plates (structures) nucleation quenching (thermal) fatigue testing brittleness thermal shock...

... action including improved material and production route were implemented. Fatigue test comparison with failure during firing A further illustration of the detection of failures occurred accidentally during a program to assess manufacturing techniques. An ingot produced by a secondary...

...Rudolph J. Scavuzzo, Jr. The basic objective of this investigation is to determine the effect of loading on the stress intensification factors of Markl’s fatigue evaluation method for metal piping. Markl’s method is based on the fatigue testing of 4 in. schedule 40 carbon steel cantilever piping...

...Abílio M. P. De Jesus; Alfredo S. Ribeiro; António A. Fernandes A normalized fine grain carbon low alloy steel, P355NL1 (TStE355), intended for service in welded pressure vessels, where notch toughness is of high importance, has been investigated. Low and high cycle fatigue tests have been...

.... HTL = fatigue tests from the first-stage cycles at a fast strain rate to the second-stage cycles at a slow strain rate LTH = fatigue tests from the first-stage cycles at a slow strain rate to the second-stage cycles at a high strain rate N 25 A = fatigue life in the air...

... et al. 26 ) and high purity Fe-18Cr-12Ni SS (Wei et al. 27 ) tested in room temperature air, 3.5% NaCl solutions and hydrogen. Strain-induced α ′ martensite formed ahead of fatigue cracks in both alloys, which caused a quasi-cleavage mechanism. Unlike 304 SS, 316 SS fatigue tested in room...

... stresses elasticity Bauschinger effect compressive testing strain gauges fatigue testing fatigue cracks pressure vessels numerical analysis wear testing Sachs’ method is a destructive experimental procedure used primarily for determining residual stresses in autofrettaged thick cylinders...

... Acoustic emission Fatigue Damage Tanks Pressure vessels Pipes pressure vessels acoustic emission testing fatigue testing 09 October 2002 26 June 2003 05 05 2004 Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL...

... for austenitic stainless steels in air Japanese fatigue life data in air for Type 304 and 316 austenitic stainless steels in JNUFAD are plotted in Fig. 1 against strain amplitude. In the load controlled fatigue test, stress amplitude was converted to strain amplitude using an appropriate cyclic stress...

... in the barrel wall, a process known as autofrettage. weapons elastoplasticity internal stresses stress-strain relations fatigue testing wear work hardening optimisation Bauschinger effect finite difference methods 12 March 2003 06 May 2003 01 08 2003 Contributed...