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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040017
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the role of plastic deformation in forging and the effect of strain and strain rate on metal flow. It demonstrates the use of stress tensors and shows how metal flow can be represented qualitatively by the displacement of volume elements and quantitatively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040051
EISBN: 978-1-62708-300-3
.... It then explains how to determine the onset of yielding, which corresponds to the start of plastic deformation and the flow of metal within the workpiece. The chapter then goes on to present two important yield criteria, one based on shear stress (Tresca criterion), the other on distortion energy (von Mises...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240017
EISBN: 978-1-62708-251-8
... on the causes, nature, and impact of these defects in metals. It also describes the mechanisms that cause plastic deformation in metals. crystalline imperfections plastic deformation deformation annealing precipitation diffusion sintering point defects line defects planar defects volume defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400027
EISBN: 978-1-62708-316-4
... Abstract This chapter discusses the fundamentals of plastic deformation and the role of strain and strain rate in sheet metal forming processes. It describes the conditions associated with uniform deformation, the significance of engineering and true strain, the effect of volume constancy...
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 August 2012
DOI: 10.31399/asm.tb.smff.t53400053
EISBN: 978-1-62708-316-4
... and how hardening laws are used to predict strain-hardening behaviors. elastic strain levy-mises equations plastic deformation sheet metal forming strain hardening strain rate WHEN A MATERIAL is deformed, two types of deformation occur: elastic and plastic. Elastic deformation is always...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
... of linearity below the proportional limit. Fig. 2 Typical stress-strain curve for an engineering plastic. Note that there is no true proportional limit. Fig. 6 The injection end of a reciprocating-screw injection molding machine Fig. 7 Stages in the operation of a reciprocating...
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Published: 01 August 2005
Fig. 2.24 Schematic of plastic fracture. (a) Normal plastic (formation of round dimples). (b) Shear plastic (formation of elongated dimples pointing in the direction of shear on each fracture surface). (c) Tear plastic (formation of elongated dimples pointing in the direction opposite More
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Published: 01 June 1988
Fig. 11.12 Illustration of a typical plastic-to-plastic welding application using a metallic-particle gasket Source: Emabond, Inc. More
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Published: 30 April 2021
Fig. 15.4 Adhesive transfer of black housing plastic to white plastic fan More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780055
EISBN: 978-1-62708-281-5
... for predicting plastic part performance (stiffness, strength/impact, creep/stress relaxation, and fatigue) integrated with manufacturing concerns (flow length and cycle time) are demonstrated for design and material selection. plastics material selection materials design plastic parts stiffness impact...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... Abstract This chapter describes the molecular structures and chemical reactions associated with the production of thermoset and thermoplastic components. It compares and contrasts the mechanical properties of engineering plastics with those of metals, and explains how fillers and reinforcements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780003
EISBN: 978-1-62708-281-5
... Abstract This introductory article describes the various aspects of chemical structure and composition that are important to an understanding of polymer properties and their eventual effect on the end-use performance of engineering plastics, namely thermoplastics and thermosets. The most...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780267
EISBN: 978-1-62708-281-5
... of polymers are then discussed. The article further includes a case study describing the tribological performance of nylon. It ends by presenting some examples of wear failures of plastics. wear elastomers thermosets glassy thermoplastics semicrystalline thermoplastics lubricants nylon...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300301
EISBN: 978-1-62708-323-2
... Abstract This chapter covers the friction and wear behaviors of plastics and elastomers. It begins by describing the molecular differences between the two types of polymers and their typical uses. It then discusses the important attributes of engineering plastics and their suitability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060137
EISBN: 978-1-62708-355-3
...ASTM and ISO mechanical test standards for plastics Table 1 ASTM and ISO mechanical test standards for plastics ASTM standard ISO standard Topic area of standard Specimen preparation D 618 291 Methods of specimen conditioning D 955 294-4 Measuring shrinkage from...
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Published: 01 June 2008
Fig. 12.6 Elastic and plastic behavior during tensile loading. Source: Ref 2 More
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Published: 01 June 2008
Fig. 12.7 Transition from elastic to plastic behavior More
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Published: 01 June 2008
Fig. 13.18 Plastic zone formation at crack tip More
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Published: 01 January 2017
Fig. 1.28 Crack growth rate vs. elastic-plastic stress intensity for iron and nickel tested in 1 N H 2 SO 4 at given cathodic overpotentials (COP). (a) 2 mm (0.08 in.) thick iron and nickel. (b) 10 mm (0.4 in.) thick iron and nickel More