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thermal expansion

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0047615
EISBN: 978-1-62708-230-3
... smaller cracks. 45x. All as-polished Discussion A general review of the stresses in the tube fin area indicated that failure was most probably due to thermal stress from differential expansion of the fin and tube. Specifically, the outside of the fin approaches the temperature of the flue gas...
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Published: 15 May 2022
Fig. 22 Thermal analysis of oriented plastic. CTE, coefficient of thermal expansion More
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Published: 15 May 2022
Fig. 21 Effect of glass addition on coefficient of thermal expansion. PBT, polybutylene terephthalate; PC, polycarbonate More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006932
EISBN: 978-1-62708-395-9
... a consequence of high coefficients of thermal expansion and low thermal diffusivities. Although time-consuming techniques can be used to analyze thermal stresses, several useful qualitative tests are described in this article. The classification of internal stresses in plastic parts is covered. The article...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
... in coefficients of thermal expansion between the polysulfone and the mating steel insert. Coefficient of thermal expansion Insert molding Plastic Polysulfone Brittle fracture Introduction A flow sensor was submitted for analysis because the plastic body section had failed while in service...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001149
EISBN: 978-1-62708-232-7
... of rolled and welded COR-TEN steel plate butt welded together on site. The pipe sustained local buckling and cracking, then fractured during the first five months of operation. Failure was due to low cycle fatigue and fast fracture caused by differential thermal expansion stresses. Thermal lag between...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048772
EISBN: 978-1-62708-220-4
... through the fireside edge of the fracture surface. Scale was observed over most of the crack path which acted as a stress raiser. The effect of the oxide was magnified during thermal cycles because of differential thermal expansion, with the steel having a greater expansion coefficient than the scale...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9
... and their response to chemical, physical, and mechanical stresses whether as an unfilled, shaped article or as a component of a composite structure. It summarizes the basic thermal properties of thermoplastics and thermosets, including thermal conductivity, temperature resistance, thermal expansion, specific heat...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001171
EISBN: 978-1-62708-219-8
... the precipitation (including reduction of carbon content, appropriate heat treatment, cold work of steel, reduction of austenitic grain size and stabilizing elements) were described. The presence of microcracks due to highly localized heat concentrations with consequent thermal expansion and considerable shrinkages...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048808
EISBN: 978-1-62708-228-0
... by dilution of the alloy and the presence of sulfur caused hot shortness. The necessary internal stress to produce extensive cracking was produced by the differential thermal expansion of the carbon and stainless steels. Periodic careful gouging of the affected areas followed by repair welding was recommended...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... coefficient of thermal expansion 28Cr3SiNiWMoV (chromium hot-worked steel) Introduction The increase in temperature increases the thermal vibration pushing the atoms apart, increasing their mean spacing, and causing thermal expansion ( α ). Perhaps the most important physical property of steel...
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Published: 15 May 2022
Fig. 19 Idealized thermomechanical analysis curve in the expansion mode. α, coefficient of thermal expansion; T g , glass transition temperature. Source: Ref 7 More
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Published: 01 June 2019
Fig. 5 TMA plot overlay showing the differential in the coefficients of thermal expansion between the plastic collar material and the steel insert More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001570
EISBN: 978-1-62708-220-4
... be aggravated due to the lack of isotropy of titanium, which has a hexagonal crystal structure 3 . The difference in the thermal expansion coefficient of carbon steel and titanium might have played an important part in the loosening of the joint. The thermal expansion coefficient of carbon steel is over 30...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001569
EISBN: 978-1-62708-229-7
... mode which may be promoted by primary as well as secondary stresses. Primary stresses (pressure and weight) are usually quantified for design while the effects of secondary stress due to thermal expansion, residual stresses, vibration, etc. usually are not included in design analysis. Changes...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0089730
EISBN: 978-1-62708-233-4
... elements in areas adjacent to that area. In addition, the intersection of the two welds contained cracks similar in appearance to those normally formed when variations in thermal expansion and contraction are encountered when welding dissimilar metals. A microhardness traverse across the weld area...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001852
EISBN: 978-1-62708-241-9
... 3 Module of elasticity 170 GPa Poisson’s ratio 0.31 Thermal expansion 14 E-6/°C Thermal conductivity 90.7 J/m °C Thermal capacity 444 J/kg °C The displacement boundary conditions were two types. First, the common practice of bolting the mould to a steel frame carrier...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001392
EISBN: 978-1-62708-231-0
... gap would be expected to attain a slightly higher temperature than the remainder. The additional thermal expansion which would occur would be resisted by the main body of the ring and compressive stresses would develop in the region. If the zone attained a sufficiently high temperature, stress...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
... the resistor assembly was manufactured with the top land termination up and shear forces exerted by the thermal expansion and contraction of the silver carrier plate during soldering and encapsulation exceeded the strength of the mechanical bond between the termination and the resistor substrate...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
..., and how the temperature is applied to the component. Second, as the temperature of the component changes it will either expand or contract depending on the temperature profile and the thermal expansion behavior of the material. Finally, the mechanical properties of the material, such as the elastic...