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compression testing

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048498
EISBN: 978-1-62708-234-1
... Abstract A graphite-epoxy tapered-box structure, which consisted of two honeycomb skin panels fastened to a spanwise spar with intermediate chordwise ribs, fractured during testing. Hinge-line deflection of the front spar was revealed. Through-thickness cracks in the forward and trailing edges...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... techniques and discusses the advantages and limitations of each technique when used in failure analysis. The focus is on various types of static load testing, hardness testing, and impact testing. The testing types covered include uniaxial tension testing, uniaxial compression testing, bend testing, hardness...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001491
EISBN: 978-1-62708-217-4
... reduced mechanical properties including tension and compression in the bias direction as compared to nozzles which passed proof tests. Warp direction mechanical properties could not be used to predict pass or fail in a proof test. II. Nozzle Insulation History in Proof Testing The convergent...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001781
EISBN: 978-1-62708-241-9
..., the material closely resembles A360 cast aluminum. The composition of A360.0 cast aluminum alloy [ 15 ] for comparison is listed in Table 1 as well. From the compression test data, the stress versus strain plot ( Fig. 5 ) indicates a yield stress of approximately 180 and 175 MPa for the subject and exemplar...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... modes of adhesive wear including scoring, scuffing, seizure, and galling, and describes the processes involved in classic laboratory-type and standardized tests for the evaluation of adhesive wear. It includes information on standardized galling tests, twist compression, slider-on-flat-surface, load...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090626
EISBN: 978-1-62708-218-1
... peened for 60 min were found to fail at much more than 500,000 cycles in fatigue tests. Thus, in this example, the suspicion that inadequate compressive residual stresses were imparted by the peening process was validated, and the validity and effect of the proposed corrective action was substantiated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001533
EISBN: 978-1-62708-225-9
... Steam turbines Wear tests Sn-13.5Sb-6.0Cu Sn-11.9Sb-4.5Cu Babbit (Other, miscellaneous, or unspecified) wear 1. Introduction The reliable operation of sliding bearings determines to a considerable extent the life and reliable operation of the steam turbine as a whole. 1 , 2 The cases...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001377
EISBN: 978-1-62708-215-0
... As received 76 11 A As received 240 35 A Stress-received at 538 °C (1000 °F) for 1 h 19 2.7 A Shot-cleaned 510 74 (a) X-ray diffraction. Precision, ±55 MPa (8 ksi) In further investigations of the effect of compressive residual stresses, stress-corrosion tests were conducted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001547
EISBN: 978-1-62708-225-9
... for 17-7 PH CH900 and for Custom 455 CH850 stainless steels. Laboratory testing of these two materials in the form of compression springs confirmed the superiority of the 17-7 PH over Custom 455. Aerospace components Coil springs Surface defects 302 UNS S30200 17-7 PH UNS S17700 Custom 455...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001600
EISBN: 978-1-62708-217-4
...). The purpose of this testing was to compare the residual stress values at increasing depth below the surface. Again, measurements were taken in the longitudinal and transverse directions. The results ( Table 11 ) showed that the OEM component had a compressive layer of higher magnitude than the IT component...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001303
EISBN: 978-1-62708-215-0
... extensive cracking around each bolt hole. −0.21×. Testing Procedure and Results Metallography Microstructural Analysis Sections were taken from the cracked region and prepared for metallographic examination. The structures were typical of modified aluminum-silicon alloys. Some variations...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
... or extensive corrosion at the interface in tests conducted in air saturated with water vapor at zero applied stress Related evidence of stress corrosion was the frequent shift of fracture modes that occurred with stress level on the fracture surface: Ductile rupture of the silver on the compression...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001220
EISBN: 978-1-62708-225-9
... Abstract A helical compression spring with ten turns made of 1.8 mm thick wire which was under high pressure during tension applied to a rocker arm broke on the test stand in the third turn. The fracture was a torsion fracture that initiated in the highly loaded inner fiber and showed in its...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001119
EISBN: 978-1-62708-214-3
.... Effective shot peening should be performed to provide compressive residual stresses at the spring surface. Further X-ray diffraction and hardness testing may be required to assess the effectiveness of any new processing technique. Selected References Selected References • Maker J.H...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... MP Fig. 3 Dye-Penetrant Test from 1990 MP Another design that has been examined recently is the shrink-fit, EB weld technique to connect the diffuser tube to the top flange. The shrink fit was used to place the origin of cracking (inside surface of necked region) in compression...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001783
EISBN: 978-1-62708-241-9
... applications where high compression loads are present such as in this case. However, even though the AMPCO 25 was not tested, it was recommended that the indenter and bushing be changed to the A2 tool steel and the AMPCO 25, respectively. All other factors being equal this change alone should improve the wear...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
... −62.6 −62.9 Standard deviation 0.7 1.1 Fig. 5 Results obtained from a steel four-point bend specimen in round-robin tests. The x-ray elastic constant (½ S 2 ) was determined to be 3.687 10 −5 ksi −1 . Fig. 6 X-ray diffraction (XRD) stress versus applied stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001545
EISBN: 978-1-62708-236-5
.... A more thorough analysis showed failure was caused by tube vibration. In a third case, a type 304 stainless steel bellows in a test loop was thought to have failed because of chloride stress corrosion. The report concluded with a recommendation that carbon steel be used as an alternative bellows material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0006440
EISBN: 978-1-62708-234-1
... and proof tested. It was recommended that the water system consisting of deionized water and formaldehyde be replaced with water having a low oxygen content and a cathodic inhibitor (oxygen scavenger). Brazed joints Mirrors Molybdenum Erosion - corrosion Intergranular corrosion A failed laser...