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strain-rate effects

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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.c9001035
EISBN: 978-1-62708-214-3
... All rights reserved DOI: 10.31399/asm.fach.v01.c9001035 www.asminternational.org 74 / Handbook of Case Histories in Failure Analysis I Effect of Strain Rate on the Failure Mode of a Rear Axle Lawrence Kashar, Kashar Technical Services, Inc., Los Angeles, California Following an accident in which...
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Published: 01 January 2002
Fig. 15 Effect of strain rate on ductile-to-brittle transition temperature in body-centered cubic metals More
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Published: 15 January 2021
Fig. 11 Effect of strain rate on ductile-to-brittle transition temperature in body-centered cubic metals More
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Published: 15 January 2021
Fig. 39 Effect of temperature on strain-rate sensitivity of pure aluminum and aluminum alloy 2024. Note 2024-O becoming negative near room temperature. Source: Ref 64 More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
.... The identified strain and stress provide the basic data and information for die life assessment. Simulation software ABAQUS is used for the determination of dynamic stresses and strains during extrusion process. In order to see the effect of temperature, strain rate, bearing length, and fillet radius, three...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... Abstract This article reviews the impact response of plastic components and the various methods used to evaluate it.. It describes the effects of loading rate on polymer deformation and the influence of temperature and strain rate on failure mode. It discusses the advantages and limitations...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
... law: (Eq 2) σ = η ε ̇ where σ is stress, ε ̇ is strain rate, and the proportionality constant η is referred to as viscosity. Fig. 12 Thermal dependence of elastic modulus for a typical polymer. Source: Ref 8 Effects of Structure on Thermal and Mechanical Properties...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001685
EISBN: 978-1-62708-235-8
... Studies were initiated to determine the effects of different levels of absorbed hydrogen and differences in the crosshead velocity (strain rate). Reference test material was prepared by solution heat treating in vacuum for 1h, whereas the low-hydrogen test group was solutionized for 8 h. Half...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... that can cause specimen-scale shear banding is the combination of minimum strain hardening and negative strain-rate hardening. A second case in which the central fibrous zone is (apparently) absent has been reported in an HY-100 steel. Both cases are discussed in this article. When edge- or center...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... that can cause specimen-scale shear banding is the combination of minimum strain hardening and negative strain rate hardening. A second case in which the central fibrous zone is (apparently) absent has been reported in an HY-100 steel. Both cases are discussed in this article. When edge- or center...
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Published: 15 May 2022
Fig. 3 Typical tensile stress-strain curves of a plastic material, showing the effect of strain-rate and temperature More
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Published: 15 May 2022
Fig. 2 Typical tensile stress-strain curves of a ductile plastic, showing the effect of strain rate and temperature More
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
...) is the region of the initial instantaneous elastic strain from the applied load, followed by a region of increasing plastic strain at a decreasing strain rate ( Fig. 3b ). Following the first stage of primary creep is the region of secondary creep, where the creep rate is nominally constant at a minimum rate...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006944
EISBN: 978-1-62708-395-9
... against a wall. The rubber now has become rigid or shows (glassy) behavior of the first region. By changing the temperature of the experiment, one produces the same effect as may be observed by changing the time or strain rate. From the second observed response of the rubber ball, it is deduced...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006932
EISBN: 978-1-62708-395-9
... a stable strain rate characterized by: (Eq 11) γ ˙ s = Bτ During logarithmic creep, the effect of aging time, t e , on the constant, A , followed the form: (Eq 12) 1011 A = 1.02 log t e + 4.92 The parameter B appeared to decrease with t e in a logarithmic...
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
... instantaneous elastic strain from the applied load, followed by a region of increasing plastic strain at a decreasing strain rate ( Fig. 3b ). Following the first stage of primary creep is the region of secondary creep, where the creep rate is nominally constant at a minimum rate, generally known as the minimum...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006940
EISBN: 978-1-62708-395-9
... of polymers, such as temperature, humidity, frequency, strain rate, and environmental parameters ( Ref 18 ), as well as molecular weight (MW), molecular weight density (MWD), and aging (due to weathering conditions, e.g., ultraviolet exposure under sunlight). Each of the aforementioned effects can have...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... superposition principle (TSSP) time-temperature superposition principle (TTSP) yielding CREEP, STRESS RELAXATION, and the effect of strain rate on yielding are related phenomena that are generally much more significant to polymers at room temperature than they are to metals. Two additional influences...
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Published: 30 August 2021
Fig. 2 Schematic demonstration of the viscoplasticity effect of a solder alloy (SAC305). Legend number is for strain rate changing from 10 −4 /s to 10/s. More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006910
EISBN: 978-1-62708-395-9
... crack arrest employing a static fracture analysis. High Strain Rate The most commonly accepted method of determining the impact fracture toughness of polymeric materials that exhibit a brittle behavior or small scale yielding and negligible influence of dynamic effects is provided by ISO 17281...