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elastic bending

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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
Image
Published: 30 November 2013
Fig. 4 Elastic stress distribution: pure bending. T, tension. C, compression. (a) No stress concentration. (b) Transverse surface stress concentrations More
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 December 2004
DOI: 10.31399/asm.tb.tt2.t51060101
EISBN: 978-1-62708-355-3
... that occurs after a forming operation are: Elastic modulus, E Yield stress, σ y Slope of the true stress/strain curve, or tangent modulus, d σ T / d ε Springback is best described by means of three examples involving a rectangular beam: elastic bending below the yield stress, simple...
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
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500019
EISBN: 978-1-62708-317-1
... defined as the forming of sheet or plate to produce angled parts or sheet profiles. Fig. 2.1 Sample part made by various sheet bending operations. Courtesy of Eaton Corp. After bending, elastic springback occurs and residual stresses may result. If the bend radius is too small, excessive...
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...
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...
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...
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...
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...
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 August 2005
Fig. 2.32 TEM image of fracture surface from a cemented carbide (94WC-6Co) after four-point bending test. The trapezoidal WC grain at center (transgranular fracture) exhibits Wallner lines (indicated by arrow), which result from the interaction between the advancing crack front More
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 August 2012
DOI: 10.31399/asm.tb.smff.t53400001
EISBN: 978-1-62708-316-4
... such as drawing, bending, and coining. manufacturing sheet metal forming IN A MANUFACTURING process, a given material is transformed into a useful part having a complex geometry with well-defined (a) shape, (b) size, (c) accuracy and tolerances, (d) appearance, and (e) properties ( Ref 1.1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090367
EISBN: 978-1-62708-266-2
... approximately 180° around a predetermined radius and maintained in this plastically (and elastically) deformed condition during the test. Standardized test methods for this type of specimen are described in ASTM G 30 ( Ref 17.8 ) and in Part 3 of Ref 17.6 . Bends slightly less than or greater than 180...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400129
EISBN: 978-1-62708-316-4
... guides, as depicted in Fig. 9.14 ( Ref 9.24 ). Fig. 9.14 Plunger guide design to reduce the horizontal forces caused by the crank motion. Reprinted with permission from Ref 9.24 Bending of Bolster The frame of the press is responsible for 30 to 35% of the total elastic deflection...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700177
EISBN: 978-1-62708-279-2
... The magnitude of springback is a convolution of elastic modulus, flow stress, thickness, and amount and type of cold work introduced by the forming process. Because cup drawing contains features of many forming operations such as stretching, drawing, and bending, the amount of springback measured by the test...
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...