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Extension ladders

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0092122
EISBN: 978-1-62708-222-8
...Abstract Abstract Several 6063-T6 aluminum alloy extension ladders of the same size and type collapsed in service in the same manner; the extruded aluminum alloy 6063-T6 side rails buckled, but the rungs and hardware remained firmly in place. The ladders had a maximum extended length of 6.4 m...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046015
EISBN: 978-1-62708-235-8
...Abstract Abstract A two-section extension ladder, made from 6061-T6 aluminum alloy extrusions and stampings that were riveted together at each rung location and at the ends of side rails, broke in service after having been used at the sites of several fires by the fire department of a large...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... material, and the idealized material assumed in limit analysis. All have the same yield strength. Fig. 2 Buckled flange (lower arrow) of an extruded aluminum section deliberately loaded with a lateral force (upper arrow). Source: Ref 3 . Fig. 3 Aluminum alloy 6063-T6 extension-ladder...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... a solid-state transformation. bcc, body-centered cubic; fcc, face-centered cubic; T , instantaneous absolute temperature; T M , absolute melting temperature of the material Fig. 3 Aluminum alloy 6063-T6 extension-ladder side-rail extrusion that failed by plastic deformation and subsequent...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
..., there is extensive and ongoing debate over the meaning of “reasonable” and “unreasonable.” The American Law Institute ( Ref 2 ) says unreasonably dangerous means that: “The article sold must be dangerous to an extent beyond that which would be contemplated by the ordinary consumer who purchases it, with the ordinary...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... rubberStyrenated polyester 3 Rigid chains PIs (ladder molecules) A Crystalline domains in a viscous network PETTerylene (Dacron)Cellulose acetate B Moderate cross linking, with some crystallinity Chloroprene rubberPolyisoprene C Rigid chains, partly cross linked Heat-resistant materials D...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... rubberStyrenated polyester 3 Rigid chains PIs (ladder molecules) A Crystalline domains in a viscous network PETTerylene (Dacron)Cellulose acetate B Moderate cross linking, with some crystallinity Chloroprene rubberPolyisoprene C Rigid chains, partly cross linked Heat-resistant materials D...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... the inclusion or second phase fractures. The level of extensional growth of the microvoids is dependent on the level of plastic strain the material can undergo prior to fracture. Microscale fractographic features consist of ruptured dimples, and both diffuse and local necking may be macroscopically visible...