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inelastic strain

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003400
EISBN: 978-1-62708-195-5
...%. In metallic alloys, failure strains in the range of 10–50% are common. These differences have implications in the efficacy of plastic shielding in the two classes of materials. Nonlinear behavior Because the mechanism of inelasticity in CFCCs involves cracking, the process is driven largely by normal...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002418
EISBN: 978-1-62708-193-1
... Fig. 1 A schematic of a resistance curve showing the evolution of the inelastic zones and the parameters that characterize the behavior Fig. 2 A schematic of crack extension in the presence of a process zone and the strain/stress history experienced by an element of material within...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002391
EISBN: 978-1-62708-193-1
... Table 1 Summary of TMF and TF test methods Type of test Heating method Advantages Disadvantages Materials studied Reference TF Immersion in hot and cold oil bath Simplicity of the experiment Transient stress strain could be present and should be calculated Noncubic crystals...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002469
EISBN: 978-1-62708-194-8
... accumulated inelastic strain for pure axial and torsional cycling and intermittent axial/torsion cycling at an effective strain amplitude of 0.008. Source: Ref 51 Fig. 25 Cyclic hardening of annealed type 304 stainless steel: True effective stress (for uniaxial monotonic loading with strain rate...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003314
EISBN: 978-1-62708-176-4
.... Rotating-beam testing is generally done under constant bending moment control. Provided the maximum bending stress remains linearly elastic, the elastically calculated stress or strain is presumed to be a controlled constant. However, should a small amount of inelasticity occur at the peak stress...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005238
EISBN: 978-1-62708-187-0
... for many reasons: Many interacting physical phenomena are involved in stress-strain formation. Stress arises primarily from the mismatch of strains caused by large temperature gradients and depends on the time- and microstructure-dependent inelastic flow of the material. Predicting distortions...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003299
EISBN: 978-1-62708-176-4
..., ε f , using Hooke's law (σ f = E ε f ). However, caution should be exercised while adopting this linear elastic approach on ceramics that exhibit significant inelastic strain before fracture. For example, zirconia ceramics, such as MgO-PSZ and Y-TZP, exhibit considerable inelastic strains due...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.9781627081931
EISBN: 978-1-62708-193-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
.... The images are of the external surface of nickel-base superalloy test specimens. Both specimens were monotonically tested to an identical inelastic strain. One specimen was tested at room temperature in laboratory air ( Fig. 2a ), and the other was tested at 650 °C (1200 °F) in argon ( Fig. 2b ). Note...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006331
EISBN: 978-1-62708-179-5
... by some kind of constraint—meaning that the total strain is forced to zero—the thermal strain will result in a stress state quantified by the product − E αΔ T . Consequently, as mentioned previously, there is a close connection between stress formation and degree of constraint. The inelastic term in Eq 2...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005420
EISBN: 978-1-62708-196-2
... and severe fluctuations in the mold surface temperature. They can be predicted from the results of a transient thermal-stress analysis of the mold itself, by combining the calculated inelastic strain (due to plasticity and creep) with measurements of cycles to failure from thermal-fatigue experiments...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003302
EISBN: 978-1-62708-176-4
... operation, material removal occurs in less than several hundred microseconds, resulting in a strain rate in excess of 10 3 /s. This strain rate is at least 5 to 6 orders of magnitude greater than that achieved in a static indentation test. At such high strain rates, it is well established that the inelastic...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005415
EISBN: 978-1-62708-196-2
... concentration of a chemical species, density, and molar volume in a multicomponent and multiphase system. Examples of the nonconserved order parameters include long-range order parameters for atomic ordering, inelastic displacement or inelastic strain (eigenstrain or transformation strain) for dislocations...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005936
EISBN: 978-1-62708-166-5
... along the cross section where residual stress measurements were conducted. Source: Ref 75 The development of residual stresses during surface hardening and the resulting shape changes are directly linked with each other through inhomogeneous plastic/inelastic strains. Unfortunately...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003304
EISBN: 978-1-62708-176-4
....-C. , Inelastic Behavior of Fiber Composites Subjected to Out-of-Plane High Strain Rate Shearing , Acta Mater. , Vol 45 ( No. 11 ), 1997 , p 4855 – 4865 10.1016/S1359-6454(97)00095-5 27. Arrieta H.V. and Espinosa H.D. , High and Low Temperature Dynamic Testing...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002413
EISBN: 978-1-62708-193-1
... the internal energy inside grains. Recovery dominates within the range of conditions that favor creep mechanisms, and the amount of the recovered inelastic strain is proportional to the magnitude of stress applied during the creep process ( Ref 21 ). The recovery phenomenon can be driven by several...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... deformation and wall-thickness reduction. Figure 1(b) shows a high-temperature-creep failure due to overheating over a substantial length of the tube. The fishmouth opening exposes the thick-edge fracture surfaces. Creep is time-dependent strain, which can cause failures when a component operating...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003310
EISBN: 978-1-62708-176-4
... or elastomers) to almost pure Hookian elasticity with low strains to fracture (glasses); the majority of polymers have properties somewhere between these two extremes. Virtually all polymeric materials show some form of inelastic behavior ( Ref 1 , 2 ). The elastomers show hysteresis, and the glasses show some...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.9781627082105
EISBN: 978-1-62708-210-5
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
... amorphous solids creep testing CREEP DEFORMATION is any permanent inelastic strain that occurs when a material is subjected to a sustained stress. The rate at which this deformation occurs depends not only on the magnitude of the applied stress, but also on time and temperature. Thus...