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elastic-plastic bending

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... the outside diameter of the tube to provide adequate sidewall support. The block is the template for the geometry of the bend. Form blocks can be made of wood, plastic, or hardboard; if used for an extensive production run, they can be made of hardened tool steel. Mandrels are used to prevent...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005424
EISBN: 978-1-62708-196-2
..., elastic and plastic behaviors of single crystals, refinements to the single-crystal constitutive, and crystal-scale finite-element. The article also presents examples that illustrate the capabilities of the formulations at the length scales. crystal-scale simulations finite-element formulations...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... elastic fracture mechanics analysis, with some mention of elastic-plastic fracture mechanics analysis. The article describes the probabilistic aspects of fatigue and fracture. Information on crack-growth simulation of the material is also provided. crack-growth simulation elastic-plastic fracture...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003136
EISBN: 978-1-62708-199-3
... of the transformation of elastic strain in the material to plastic, or permanent strain. copper copper alloys stress-relaxation structural applications thermal softening COPPER AND COPPER ALLOYS are used extensively in structural applications in which they are subject to moderately...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... another component. Distortion failures can be either plastic or elastic, and may or may not be accompanied by fracture. Two main types of distortion are size distortion, which refers to a change in volume (growth or shrinkage); and shape distortion (bending or warping), which refers to a change in...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001297
EISBN: 978-1-62708-170-2
... observed natural frequency ( Ref 10 ). The beam-bending method is well suited for the determination of elastic and some plastic properties of freestanding films. The principal drawback to this technique is the inherent difficulty of specimen preparation. Indentation testing of thin films resembles in...
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
... where F is a polynomial factor that accounts for the specimen geometry. Linear elastic fracture mechanics, and thus K -factor, cannot be used to describe the relationship between applied stress and the crack length when there is significant plasticity or when the stress state at the crack tip is...
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
... elastic and plastic deformation. However, in highly textured materials that deform by twinning, as opposed to dislocation slip, compressive and tensile deformation characteristics differ widely. Bend tests are conducted to determine the ductility or strength of a material. Bend tests for ductility...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... will result in a straight line if Eq 17 is satisfied by the data ( Fig. 6 ). The linear slope of this line is n , and K is the true stress at ε=1.0 (corresponds to q =0.63). As shown in Fig. 7 , the strain-hardening exponent may have values from n =0 (perfectly plastic solid) to n =1 (elastic...
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
... “elastic” stress fields in nondeformed material (pure cleavage) versus cleavage fracture in material plastically deformed in the yield zone in front of a macroscale crack. Important work from the period of the 1950s and 1960s can be found in the literature ( Ref 10 – 13 ). A discussion of identifying...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... and strains For pure plastic bending, in which elastic deformation can be ignored, the maximum tensile fiber strain is: (Eq 17) ε 0 = ln R o R i where R o is the radius of curvature on the outer (tensile) surface, and R i is the radius of curvature on the...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003024
EISBN: 978-1-62708-200-6
... appropriate for the task. The current situation is that studies of mechanical properties are underpinned by a comprehensive theory of viscoelasticity, which plays a role analogous to the theories of elasticity and plasticity. The main feature of the theory is the introduction of time into the stress-strain...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... design engineer, resistance to scratching to a mineralogist, and resistance to cutting to a machinist. Although these various definitions of hardness appear to differ significantly in character, they are all related to the plastic flow stress of the material. Table 1 lists the major types of...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.9781627081863
EISBN: 978-1-62708-186-3
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005947
EISBN: 978-1-62708-166-5
... Steel Heat Treating” in Steel Heat Treating Fundamentals and Processes , Volume 4A of ASM Handbook , ASM International, 2013.) Deformation processes may be either plastic or elastic. In the absence of external forces and moments, elastic deformations after heat treatment are always caused by...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
... Source: Ref 3 When designing with engineering plastics, it is generally best to choose the properties region in which the response of the material is still elastic. This is called the proportional region in a stress-strain curve, which obeys Hookean laws, and is the region where conventional...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
.... Distortion failures can be plastic or elastic and may or may not be accompanied by fracture. There are two main types of distortion: size distortion, which refers to a change in volume (growth or shrinkage), and shape distortion (bending or warping), which refers to a change in geometric form. Most of the...
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
... article also describes the generation of thermal, transformation, and hardening residual stresses. bearing steel case hardening distortion elastic plastic deformation heat treatment linear elastic deformation phase transformation quenching residual stress retained austenite steel...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006632
EISBN: 978-1-62708-213-6
... mechanical plastic deformation, as in forming, machining, grinding, shot peening, welding, quenching, or virtually any thermal-mechanical process that leaves a distribution of elastic strains. Phase transformations that produce nonuniform volume changes in a part, as in carburizing or case hardening of steel...