1-20 of 283 Search Results for

elastic-plastic bending

Sort by
Image
Published: 01 December 2004
Fig. 5 Elastic and plastic deformation of a wire with the fingers. With small forces (top), all of the bending is elastic and disappears when the force is released. With greater forces (below), some of the bending is recoverable (elastic), but most of the bending is not recovered (is plastic More
Image
Published: 01 August 2013
Fig. 3.2 Use of the fingers to sense the elastic and plastic response of a wire. With a low force (top) the deformation is entirely elastic and the bending disappears when the force is removed. With greater force (bottom) the elastic portion of the bending disappears when the force is removed More
Image
Published: 01 December 2004
Fig. 5 Springback of a beam in simple bending. (a) Elastic bending. (b) Elastic and plastic bending. (c) Bending and stretching More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730023
EISBN: 978-1-62708-283-9
... stress-strain curve in tension. Figure 3.3 is an engineering stress-strain curve of a ductile material. Fig. 3.2 Use of the fingers to sense the elastic and plastic response of a wire. With a low force (top) the deformation is entirely elastic and the bending disappears when the force is removed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500019
EISBN: 978-1-62708-317-1
... ≤ ɛ e,o where E is Young’s modulus, ν is Poisson’s ratio, and ε e,o is the elastic limit. The plastic stress component depends on the complexity of the material-hardening model. For rigid perfectly plastic material ( Fig. 2.5a ), using Hill’s yield index F, the bending (tangential...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540001
EISBN: 978-1-62708-309-6
... Abstract This chapter reviews the fundamentals of stress, strain, and deformation and demonstrates some of the tools and techniques used to analyze how materials and structures respond to tension, compression, bending, and shear. It begins with an overview of the behavior of perfectly elastic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060101
EISBN: 978-1-62708-355-3
... bending forces, the internal elastic forces cause the beam to unbend as they decrease to zero throughout the cross section ( Fig. 5a ). Fig. 5 Springback of a beam in simple bending. (a) Elastic bending. (b) Elastic and plastic bending. (c) Bending and stretching The maximum amount...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870157
EISBN: 978-1-62708-344-7
... Abstract This chapter deals with the effects of fatigue in rotating shafts subjected to elastic and plastic strains associated with bending stresses. It begins with a review of the basic approach to treating low-cycle fatigue in bending, explaining that the assumption that stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610101
EISBN: 978-1-62708-303-4
... upon crack extension is the driving force for fracture in a cracked material under load. This chapter provides a summary of Griffith’s work and the subsequent development of linear elastic and elastic-plastic fracture mechanics. It includes detailed illustrations and examples, familiarizing readers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060001
EISBN: 978-1-62708-355-3
...). With larger bends, it will unbend elastically to some extent on release, but there will be a permanent bend because of the plastic deformation (bottom). Fig. 5 Elastic and plastic deformation of a wire with the fingers. With small forces (top), all of the bending is elastic and disappears when...
Image
Published: 01 December 1995
Fig. 6-5 Rectangular beam subjected to pure bending. (a) Elastic stress distribution. (b) Assumed lower bound stress distribution for plastic collapse More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400033
EISBN: 978-1-62708-316-4
... and use of forming limit curves and the extensive amount of information they provide. anisotropy flow stress formability forming limit curves plastic deformation sheet forming tensile test WHEN A MATERIAL is deformed, two types of deformation occur: elastic and plastic. The elastic phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.9781627083553
EISBN: 978-1-62708-355-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400001
EISBN: 978-1-62708-316-4
... no shape but obtains a well-defined geometry through the process. Here the first shape is given to the material. Forming processes, such as rolling, extrusion, cold and hot forging, bending, and deep drawing, where metal is formed by plastic deformation, without destroying the cohesion of the material...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060265
EISBN: 978-1-62708-355-3
... of a solid accompanied by little or no macroscopic plastic deformation. Typically, brittle fracture occurs by rapid crack propagation with less expenditure of energy than for ductile fracture. bulk modulus. See bulk modulus of elasticity. bulk modulus of elasticity (K). The measure of resistance to change...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630023
EISBN: 978-1-62708-270-9
.... The neutral axis may or may not be at the geometrical center, although there must be zero stress at some location in the cross section. Fig. 4 Elastic stress distribution: pure bending. T, tension. C, compression. (a) No stress concentration. (b) Transverse surface stress concentrations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200083
EISBN: 978-1-62708-354-6
... of resultants of the assumed internal stress distribution is a lower bound estimate of the plastic collapse load. As an example, consider the rectangular beam subject to pure bending in Figure 6-5 . In the elastic range the longitudinal stress varies linearly with distance from the neutral axis. Yielding...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630055
EISBN: 978-1-62708-270-9
... either as dimensional distortion (growth or shrinkage) or as shape distortion (such as bending, twisting, or buckling). They may also be classified as being either temporary or permanent in nature. Temporary (Elastic) Distortion Distortion is frequently fleeting and transient. Since metals...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
... fatigue data. It compares the Gerber, Goodman, and Soderberg methods for predicting the effect of mean stress from bending data, describes the statistical nature of fatigue measurements, and explains how plastic strain causes cyclic hardening and softening. It discusses the work of Wohler, Basquin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500107
EISBN: 978-1-62708-317-1
... sheet materials. Source: Ref 6.7 Elastic Modulus Elastic modulus includes both loading (Young’s) and unloading moduli. It is conventionally assumed that the elastic modulus for loading and unloading is the same and is a constant value regardless of the plastic strain. Recent studies ( Ref...