1-20 of 1353

Search Results for constant-load testing

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 January 2000
Fig. 13 Constant-stress testing system with balancing cam and constant-load wheel More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
.... To determine the susceptibility of alloys to SCC and hydrogen embrittlement, several types of testing are available. This article describes the constant extension testing, constant load testing, constant strain-rate testing for smooth specimens and precracked or notched specimens of SCC. It provides...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003288
EISBN: 978-1-62708-176-4
... and rupture strengths of materials. The article describes the different types of equipment for determination of creep characteristics, including test stands, furnaces, and extensometers. It also discusses the different testing methods for creep rupture: constant-load testing and constant-stress testing...
Image
Published: 01 January 2000
Fig. 10 Results of tests on lead wire under constant-load and constant-stress conditions. Source: Ref 36 More
Image
Published: 01 January 1996
Fig. 17 Constant K max test load ratio More
Image
Published: 01 January 1987
Fig. 645 Hydrogen embrittlement of AISI type 304 tested under constant load in pure hydrogen gas at 100 kPa (1 atm) and 25 °C (75 °F). The two-part fractograph compares matching fracture surfaces. Note the quasi-cleavage-type facets. They generally exhibit more ductility (have a rougher More
Image
Published: 01 January 2000
Fig. 18 Constant K max test load ratio More
Image
Published: 01 January 2003
Fig. 4 Comparison of changing stress during initiation and growth of isolated SCC in constant-strain and constant-load tests of a uniaxially loaded tension specimen. (a) Constant-strain test. (b) Constant-load test. σ M is the maximum stress at crack tip, σ N is the average stress in the net More
Image
Published: 01 January 2002
Fig. 3 Stages of creep deformation. (a) Strain curve for the three stages of creep under constant-load testing (curve A) and constant-stress testing (curve B). (b) Relationship of strain rate, or creep rate, and time during a constant-load creep test. The minimum creep rate is attained during More
Image
Published: 15 January 2021
Fig. 3 Stages of creep deformation. (a) Strain curve for the three stages of creep under constant-load testing (curve A) and constant-stress testing (curve B). (b) Relationship of strain rate, or creep rate, and time during a constant-load creep test. The minimum creep rate is attained during More
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003666
EISBN: 978-1-62708-182-5
... Abstract This article describes the incubation, nucleation, and propagation of stress-corrosion cracking and how to evaluate it using standard tests. It discusses constant-strain, constant-load, bending, and uniaxial tension testing and how they compare when evaluating smooth and precracked...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003287
EISBN: 978-1-62708-176-4
... descriptions of creep and explains the testing and mechanism of creep in crystalline solids. It also presents information on the creep response of crystalline and amorphous solids. creep deformation polymers ceramics composites constant load constant true stress creep strain crystalline solids...
Image
Published: 01 January 2003
Fig. 29 Comparison of determination of K ISCC by crack initiation versus crack arrest. (a) Constant-load test. (b) Constant crack-opening displacement test. a 0 = depth of precrack associated with the initial stress intensity K Io ; V pl = plateau velocity More
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002370
EISBN: 978-1-62708-193-1
... a represents the life result of the one fractured specimen. Testing of n = 10 specimens leads to the schematic of Fig. 1(c) , which provides some idea of typical scatter. In the case of the so-called “service-load” (in which the stress amplitude is not constant), a frequently used approach is to attribute...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002472
EISBN: 978-1-62708-194-8
... and solid-solution alloys in relatively short-term tests, accepted the concept of steady-state creep (although testing was more often conducted at constant load rather than constant stress), and often assumed implicitly that viscous flow was history independent. This means that not only is there a steady...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003667
EISBN: 978-1-62708-182-5
... for the following five types of AISI 4340 steel test specimens: Type 1a: notched round bars, stressed in tension, under constant load Type 1b: notched round bars loaded in tension with stressed O-rings Type 1c: notched round bars loaded in bending with loading bars Type 1d: notched C-rings loaded...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... in the third stage of tertiary creep. Constant-stress tests (as opposed to constant-load tests) often do not show tertiary behavior. Fig. 3 Stages of creep deformation. (a) Strain curve for the three stages of creep under constant-load testing (curve A) and constant-stress testing (curve B). (b...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... creep tests under a constant stress instead of a constant load. Each of these early studies on creep revealed a change in the creep response of a material as a function of time. Bulk Creep Behavior Some key material properties at high temperature are thermal expansion coefficient, stress rupture...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003290
EISBN: 978-1-62708-176-4
... compression testing bend testing torsion testing springs THE MAJORITY OF CREEP TESTING, as described in this Volume, uses a fixed load (or stress) at a constant temperature and measures the increase in strain as a function of time. However, materials may also creep under constraint with little...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003289
EISBN: 978-1-62708-176-4
... an initial high value and is followed by a tertiary stage of rising creep rate as rupture is approached ( Fig. 2 ). Fig. 1 Schematic tension-creep curve showing the three stages of creep Fig. 2 Relationship of strain rate, or creep rate, and time during a constant-load creep test...