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Impact absorbed energy

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001065
EISBN: 978-1-62708-214-3
... that occurs after the NDTT has been surpassed. Table 3 Impact test results Material Temperature (a) Absorbed energy °C °F J ft·lbf Pipe (A-106, grade B) Specimen No. 1 RT 34.6 25.5 2 RT 35.3 26.0 3 RT 35.6 26.25 4 190 375 45.8 33.75 5 190 375...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001327
EISBN: 978-1-62708-215-0
... MPa (88.4 ksi); elongation, 29.0%; reduction of area, 59.0%. These values also conformed to SA 106 grade B material requirements. The Charpy impact properties of the reducer at −18 °C (0 °F) are shown in Table 1 . Table 1 Charpy impact properties Energy absorbed Shear, % Lateral...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001067
EISBN: 978-1-62708-214-3
...-notch impact test results Location Energy absorbed, J (ft . lbf) Base metal HAZ Weld Top Bottom Top Bottom Top Bottom Temperature 0 °C (32 °F) 60 (44) 54 (40) 46 (34) 52 (38) 156 (115) 136 (100) 54 (40) 45 (33) … … … … Room temperature … … … … 187 (138...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001055
EISBN: 978-1-62708-214-3
... selected in an attempt to determine the nil ductility curve for the steel. Samples from the first failure were also tested, as were three normalized specimens. The results are presented in Table 3 . Table 3 Results of impact toughness testing Specimen No. Test temperature Absorbed energy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001534
EISBN: 978-1-62708-220-4
... transition at subambient temperatures. Low-temperature impact toughness of the weld metal is reported to be poor, especially when the weld metal is made with a cellulose-coated electrode, such as AWS E 6013 ( Ref 5 , 6 ). The presence of large amounts of inclusions results in further degradation of the low...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001035
EISBN: 978-1-62708-214-3
....) thick, careful machining was required. After impact testing at room temperature, the appearance and toughness of the samples from the two areas were entirely different. The outer surface layer showed very little toughness, in that the 2.5 mm (0.1 in.) wide subsized sample absorbed only 4 J (3 ft . lbf...
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
... specimen loaded slowly and under controlled conditions to fracture. Notch toughness represents the ability of a material to absorb energy and is determined under impact loading in the presence of a notch. Notch toughness is measured by using a variety of specimens, such as the Charpy V-notch impact...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001770
EISBN: 978-1-62708-241-9
... it include a postweld heat treatment to remove weld sensitization and minimize residual stresses. storage tank corrosion welding defects stainless steel transgranular cracks fractography impact absorbed energy AISI 304 (austenitic stainless steel) UNS S30400 AISI 308 (austenitic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001146
EISBN: 978-1-62708-229-7
... impact specimen's fracture surface shows a 50% ductile and 50% cleavage structure. By this definition, the transition temperature for this material appears to be approximately −60°F ( Figure 7 ). All of the nine transverse specimens tested (specimens 10–18) had values of absorbed energy significantly...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... particle testing. It covers the effects of various factors on the properties of the part that may impact failure analysis, describes the characterization of damage modes and crack sizes, and finally discusses the processes involved in application of NDE results to failure analysis. crack sizes...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001776
EISBN: 978-1-62708-241-9
... compressive force to break rocks into granules. Thus, the crusher jaws must be quite hard to crush rocks and also be tough enough to be able to absorb the impact energy generated by the swing jaws without failure. Jaws that are only “hard” are efficient in crushing the rock, but they are susceptible to...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001833
EISBN: 978-1-62708-241-9
... or semicontinuous distribution ( Fig. 5 ). However, in spite of the service-induced segregation and particle formation, the material still retained significant toughness and was suitable for continued service. Fig. 3 Morphology of the impact fracture. 4000× Fig. 4 Energy-dispersive...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
... ] Wt.% sulfur K Q (ksi-√inch) 0.020 45.4 0.023 42.5 0.025 39.9 0.026 39.9 0.030 39.0 0.033 38.5 Notch toughness characterizes a material’s ability to absorb energy during high strain rate loading (i.e., impact). The Charpy V-Notch (CVN) impact test has become the...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... effect of increasing nominal contact stress levels is to increase wear rates; however, the occurrence of significant impact during the abrasive/wear material contact may also accelerate the rate of material removal. This acceleration results from the increased amount of kinetic energy dissipated during...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001473
EISBN: 978-1-62708-229-7
... disintegrate with explosive violence. The steel shaft with the portion of the hub that remained intact then bounced off the girder and was ejected on to the turbine floor at the side of the gearbox, as shown in Figure 1 . The impact of the gear wheel also served to reduce the amount of energy remaining in the...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... procurement of a cost-effective failure analysis of commodity-grade components suspected of hydrogen embrittlement. Because of the wide economic impact in commodity-grade components, it is worthwhile to look at failure analysis for this specific type of hydrogen damage. This section of the article is written...
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 Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... rates, the fracture toughness becomes important ( Ref 43 , 44 ), and higher toughnness is required to absorb more impact energy or deformation energy before failure. Materials having both superior mechanical properties and high noblity are desired to effectively resist corrosive wear. Wear...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001020
EISBN: 978-1-62708-214-3
... and tricycle landing gear. The main landing gear was equipped with two wheels on each side in the general configuration shown in Fig. 1 . This assembly was the principal support for the aircraft and had many components, including air/oil shock struts to absorb landing impact and taxiing loads...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
...-beam. To find the cause of the amplification, an impact test was performed on the microscope to determine its natural frequencies. The natural frequency of the scope on its isolation system was found to match the vibration on the I-beam. Isolators function by creating a system with a natural...