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stiffness

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Published: 01 December 2019
Fig. 5 Contact stiffness and bending stiffness in series More
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Published: 01 June 2019
Fig. 7 Ratio of lateral to axial stiffness for helical compression springs as a function of the ratio of working height to mean coil diameter and the ratio of static deflection to working height 9 More
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Published: 01 December 2019
Fig. 7 Bearing stiffness and damping More
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Published: 01 December 2019
Fig. 7 Bending stiffness of the cam for a centered follower More
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Published: 01 December 2019
Fig. 8 Equivalent stiffness More
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Published: 01 December 2019
Fig. 14 Bending stiffness of the cam for a eccentric follower (5 mm) More
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Published: 01 December 2019
Fig. 15 Bending stiffness of the disk cam with translating roller follower ( e = 0). Bending stiffness of the disk cam with an offset translating roller follower ( e = 5 mm) More
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Published: 30 August 2021
Fig. 6 Simplified one-dimensional expression of a solder joint series stiffness system More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001797
EISBN: 978-1-62708-241-9
.... It was shown both theoretically and experimentally that a cracked cam causes an overall reduction in stiffness. To further probe the effect, investigators derived an analytical formula expressing the time varying stiffness of a cam-follower system. They also succeeded in quantifying the relationship between...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006867
EISBN: 978-1-62708-395-9
... Abstract With any polymeric material, chemical exposure may have one or more different effects. Some chemicals act as plasticizers, changing the polymer from one that is hard, stiff, and brittle to one which is softer, more flexible, and sometimes tougher. Often these chemicals can dissolve...
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Published: 30 August 2021
Fig. 4 The stress state in the weld around the perimeter of this square tube is uneven, due to the difference in stiffness of the main member to which the branch is welded. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001576
EISBN: 978-1-62708-219-8
..., and it was no way close to 62 Hz. It is, therefore, unlikly that the rotor resonates with the rotational frequency. Fig. 9 Frequency Responce of Rotor Fan Excitation Test The rotor was confirmed to have sufficient stiffness. The motor connected directly to the rotor exhibited considerable stiffness...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
... resistance values, although such materials would have lower stiffness. Figure 1 shows the variation of notched impact with flexural modulus for a typical range of acrylonitrile-butadiene-styrene (ABS) resins. Some stiffness can be recovered by adding fibrous reinforcement, but the reinforcement can also...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001851
EISBN: 978-1-62708-241-9
... bearings machine fault misalignment structural materials vibration wear vibration analysis stiffness damping coefficient inertia steel (steel, general) Introduction A spinning system serves as a model for many rotating machinery elements. It is generally composed of a flexible shaft...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001596
EISBN: 978-1-62708-225-9
... for decarburization was detected through microhardness measurements. Stress Analysis Table 3 summarizes the characteristics of the helical compressor springs. The spring rate or axial stiffness is calculated from: (Eq 1) k = G d 4 8 N a D m 3  in N / mm where D m is the mean...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001151
EISBN: 978-1-62708-219-8
.... However, any reduction in stiffness in construction or service would allow a greater depth of water ponding on the roof during a heavy rain storm, with the increased loading giving further roof deflection and additional ponding. Thus, a load sufficient to collapse the entire structure may be reached under...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
... techniques are used to produce polymer fibers. Such fibers have substantially greater stiffness and strength along their length than do the unoriented polymers from which they are manufactured. This is because special processing has been used to orient the covalent bonds of an appropriate long-chain polymer...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... different effects. Some chemicals act as plasticizers, changing the polymer from one that is hard, stiff, and brittle to one which is softer, more flexible, and tougher. Often these chemicals can dissolve the polymer if they are present in large enough quantity and if the polymer is not crosslinked. Other...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006938
EISBN: 978-1-62708-395-9
... or material coupon to the point of fracture. Instead, testing performance may be compared to the functional material property requirements of the part. For instance, exposure to a plasticizer may decrease the stiffness and increase the ductility of a material, which can be assessed for its impact on part...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... or properties to be measured, and end-of-life or threshold criterion. Properties should be related to critical properties for the polymeric material to function in service (e.g., stiffness and strength). The critical threshold is often a percentage of the initial property of the undamaged material. Specify...