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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780216
EISBN: 978-1-62708-281-5
... Abstract This article discusses the material and engineering issues associated with plastic components subjected to impact. The first part covers the effects of loading rate, temperature, and state of stress on both deformation and mode of failure. It discusses standard impact tests, along...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780153
EISBN: 978-1-62708-281-5
... Abstract This article presents a general overview of outdoor weather aging factors, their effects on plastic materials, and the accelerated test methods that can be used to estimate the reaction of a plastic component during actual use. Weather and radiation factors that contribute...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780109
EISBN: 978-1-62708-268-6
... is that the system failed even though all parts in the system met their drawing requirements. The common failures discussed in this chapter include those associated with metallic components, composite materials, plastic components, ceramic components, and electrical and electronic components. ceramic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780359
EISBN: 978-1-62708-281-5
... Abstract This article reviews various analytical techniques most commonly used in plastic component failure analysis. The description of the techniques is intended to make the reader familiar with the general principles and benefits of the methodologies. The descriptions of the analytical...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490021
EISBN: 978-1-62708-340-9
...Abstract Abstract The toughness of a material is its ability to absorb energy in the form of plastic deformation without fracturing. It is thus a measure of both strength and ductility. This chapter describes the fracture and toughness characteristics of metals and their effect on component...
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
..., plastic deformation, ductility, hardness, creep, fatigue, and fracture. It also describes the primary components of a Charpy impact tester and the role they serve. creep ductility elasticity fatigue fracture failure hardness impact test plastic deformation strain stress tension test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780177
EISBN: 978-1-62708-281-5
.... In addition, details on ad hoc tests used for determining the acceptability of a plastic part for its application are provided, along with typical examples. optical components optical test plastics plastic parts OPTICAL TESTING of plastics includes characterization of materials and analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040017
EISBN: 978-1-62708-300-3
... by the distribution of velocity components and strain rates. It describes the conditions associated with homogeneous deformation in a frictionless upset forging and explains how they can also be obtained using engineering and true stress-strain curves. flow stress plane stress plastic deformation strain rate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040051
EISBN: 978-1-62708-300-3
... Abstract This chapter covers the fundamentals of metal flow and the tools and techniques used to predict and control it. It begins by illustrating the local state of stress in a metal cylinder during upset forging and showing how stress components can be expressed in matrix form...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460209
EISBN: 978-1-62708-285-3
..., the prefabricated metal parts are overmolded with the plastic components. However, such hybrid plastic-metal components manufacturing methods are very complex and highly time-consuming. The manufacture of hybrid plastic-metal components can be simplified by cold spraying. Metal parts produced on plastic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780141
EISBN: 978-1-62708-268-6
.... The most common example is the film that forms on the inside of car windows. This occurs when the plastic components in an automobile interior outgas, and the gaseous plastic then deposits itself on the inside of the windshield. This is more of a nuisance than a problem, but in sealed systems, it can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780323
EISBN: 978-1-62708-281-5
... an understanding of environmental effects on failure properties. After a plastic component is exposed to an organic chemical, aggressive molecules may diffuse into the component, leading to plasticization. Swelling of the material results in high stresses, which can cause crazing or cracking. Fracture has been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780211
EISBN: 978-1-62708-281-5
... growth region) at nine points equally spaced across the thickness of the specimen. These nine values are averaged, as described by ASTM E 1737. J is then calculated according to: (Eq 2) J = J e l + J p l where J e1 and J p1 are the elastic and plastic components...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... on fractography that provides useful insight into the nature of fracture processes. fatigue test crack initiation crack propagation engineering plastics fractography FATIGUE FRACTURE OF ENGINEERING PLASTICS due to cyclic loading conditions is of critical concern when designing polymeric components...
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
.... The total strain (Δε) consists of both elastic and plastic components: (Eq 7) Δ ε = Δ ε e + Δ ε p where Δε e is the elastic strain (Δε e = Δσ/ E ), and Δε p is the plastic strain. Fig. 15 Hysteresis loop for cyclic loading. Source: Ref 1 The plastic strain (Δ...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
... During cyclic loading within the elastic regime, stress and strain are directly related through the elastic modulus. However, for cyclic loading that produces plastic strains, the responses are more complex and form a hysteresis loop ( Fig. 14.10 ). From point O up to point A , the component...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220281
EISBN: 978-1-62708-341-6
... induction heated during an adhesive bonding operation Source: Lindberg Cycle-Dyne, Inc. In the manufacture of copying machines, plastic components are adhesively bonded to aluminum rotors in a similar operation. Operated by a robot, the system uses a single RF generator operating two alternate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540281
EISBN: 978-1-62708-309-6
...-strain curve. Both σ ¯ and ε ¯ p are then substituted into Eq 6.6 to compute the plastic component of J . Physically, the integral in Eq 6.6 may be interpreted as the area under the plastic stress-strain curve. Therefore, the plastic part of J...
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...