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plastic collapse

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930163
EISBN: 978-1-62708-359-1
... Abstract Depending on the operating environment and the nature of the applied loading, a structure can fail by a number of different modes, including brittle fracture, ductile fracture, plastic collapse, fatigue, creep, corrosion, and buckling. These failure modes can be broken down...
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Published: 01 July 1997
Fig. 27 Failure assessment diagram concept for assessing cracked components for brittle fracture and plastic collapse More
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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
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Published: 01 December 1995
Fig. 6-7 Free body diagram and lower bound stress distribution for linkage arm. A. Free body diagram of Figure 6-6 . B. Assumed lower bound stress distribution for plastic collapse More
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Published: 01 July 1997
Fig. 3 Schematic representation of a crack growing in service under fatigue loading. Failure occurs if a f ≥ a c . a 0 , start-of-life defect size; a f , defect size due to fatigue crack growth; a c , critical defect size due to unstable fracture or plastic collapse More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200083
EISBN: 978-1-62708-354-6
... collapse. If service loads are high enough to cause general yielding of a component, excessive plastic deformation that may render the part unserviceable and eventually fracture must follow. Component size and shape and material yield strength must be adjusted such that service stresses will not cause...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930113
EISBN: 978-1-62708-359-1
... deformation, ductile fracture, plastic collapse, and buckling are often preceded by significant plasticity. The remaining five failure modes can be broken down into fatigue and environmental cracking. Figure 2 summarizes the different loading paths that can result in failure of a statically...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780216
EISBN: 978-1-62708-281-5
... consequence of the very low modulus of elasticity associated with plastics is the potential importance of buckling and collapse of thin plastic structures. The loss of load-carrying ability associated with such an event can be a significant design issue for a plastic part, even though it was not a problem...
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
... Abstract Distortion failures are readily identified by the inherent change in size and/or shape. They are serious because they can lead to other types of failure or may even cause complete collapse of structures, such as bridges, ladders, beams, and columns. Distortion failures may...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270059
EISBN: 978-1-62708-301-0
... this accident, the manufacturers replaced the air-melted compressor discs with vacuum-melted discs, which are known to be cleaner. 8.4 Modification of Codes and Standards Collapse of Ashland Oil Storage Tank On Jan. 2, 1988, a 4 million gallon oil storage tank collapsed during the first filling after...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200173
EISBN: 978-1-62708-354-6
... of a rapidly moving stream of molten metal. Metal temperatures for steels are typically in the range of 2600 to 3000 °F (1430-1650 °C). The mold must be chemically inert and not react with the molten steel to form undesirable surface effects. It must be collapsible enough to permit the steel to contract...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... supersonic velocities, but plastic and composite parts and organic coatings (like paint) may be eroded by droplet erosion with flight speeds of 500 to 600 mph (223 to 290 m/s) in significant rain fields. Many flying devices have radar equipment in the nose of the aircraft with a fiber-reinforced polymer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140055
EISBN: 978-1-62708-335-5
... and integrity. At elevated temperatures and under increased pressure, shrinkage voids uncontaminated by hydrogen are compressed and healed by the collapse of the surrounding structures when yield strength is reduced sufficiently for plastic deformation to occur during the densification cycle. In the case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870085
EISBN: 978-1-62708-299-0
..., for example, erosion-corrosion of containment vessels in coal gasification plants. Erosion of a solid surface can also take place in a liquid medium without the presence of solid abrasive particles in that medium. Cavitation, one mechanism of liquid erosion, involves the formation and subsequent collapse...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130001
EISBN: 978-1-62708-284-6
... of the material. When effective stress is exceeded somewhere within the component, it does not necessarily indicate plastic collapse of the entire structure. Primary stresses may locally exceed yield, within certain limits, provided that there is enough ductility to allow the material to yield without cracking...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
... thermoplastics by blowing air into an extruded tube. The air expands the tube, which then is collapsed by nip rollers. The thickness and size of the film is controlled by the volume of air inside the bubble, the speed of the nip rollers, and the output rate of the extruder. Plastic bottles are made by blow...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270053
EISBN: 978-1-62708-301-0
... out of court. A few product liability cases are described next. Collapse of Domestic Ladders Several litigations following the collapse of aluminum ladders have been reported. In one case, when a woman, standing on a ladder, was trying to remove dry leaves from the roof of her house with a rake...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220241
EISBN: 978-1-62708-341-6
... be designed only for systems in which they can be readily replaced. Application of Flux Concentrators Flux concentrators, whether laminations or ferrites, should be located directly in or on the coil. For example, placement in the center of a pancake coil collapses the over-all field to provide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320011
EISBN: 978-1-62708-332-4
... Abstract Most iron and steel castings are produced by casting into sand molds. Sand cores are needed primarily to form hollow cavities in castings for collapsibility and ease of cleaning. This chapter begins with an overview of the classification of molding and core-making systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060043
EISBN: 978-1-62708-343-0
... 3.1 Fig. 3.3 Simple cyclic deformation models for strain-range partitioning Fig. 3.2 Schematic illustration of creep-fatigue interaction when tensile creep occurring along grain boundaries is reversed by compressive plasticity occurring along crystallographic slip planes...