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thermomechanical testing

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... to thermomechanical testing; 5 °C/min (9 °F/min) in flexure. HDPE, high-density polyethylene; LDPE, low-density polyethylene; PC, polycarbonate; PVC, polyvinyl chloride. Abstract This article addresses some established protocols for characterizing thermoplastics and whether they are homogeneous resins...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... Abstract This article reviews the analytical techniques most commonly used in plastic component failure analysis. These include the Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, thermomechanical analysis, and dynamic mechanical analysis...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... in this article. While the term thermomechanical fatigue is also broadly applied to define testing procedures, generic environmental exposure (both high- and low-temperature exposure), and other aspects of material evolution, this article limits the application of the term thermomechanical fatigue...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006931
EISBN: 978-1-62708-395-9
... thermomechanical tests that approximate the strength and T g of plastics, for example, the Vicat softening temperature and the HDT/DTUL. Vicat softening (ASTM D1155) and HDTs/DTULs (ASTM D648) of plastics have been determined by TMA at the high stresses of 10.3 and 1.82 MPa (1.5 and 0.264 ksi), respectively...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001056
EISBN: 978-1-62708-214-3
.... Fig. 8 Notched modified fatigue specimen used for thermal fatigue experiments. Fig. 9 Experimental thermomechanical cycle imposed on thermal fatigue specimen. Abstract Type 347 stainless steel moderator circuit branch piping in a pressurized hot water reactor was experiencing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... 7.1 – 7.6 9. Boley B.A. and Weiner J.H. , Theory of Thermal Stresses , John Wiley and Sons , 1960 10. Halford G.R. , Lerch B.A. , and McGaw M.A. , Fatigue, Creep, and Thermomechanical Fatigue Life Testing , Mechanical Testing and Evaluation , Vol 8 , ASM...
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
....a0003546 • Sehitoglu H. , Thermal and Thermomechanical Fatigue of Structural Alloys , Fatigue and Fracture , Vol 19 , ASM Handbook , ASM International , 1996 , p 527 – 556 . 10.31399/asm.hb.v19.a0002391 Introduction Experiment Monotonic Tests Fracture Surface Cyclic...
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
... utilized included scanning electron microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, thermomechanical analysis, and melt flow rate determination. It was the conclusion of the investigation that the part failed via brittle fracture, with evidence also indicating low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0046966
EISBN: 978-1-62708-229-7
.... Analysis (visual inspection, 100x/500x metallographic examination of sections etched with a mixture of ferric chloride, hydrochloric acid, and methanol, and bend tests) supported the conclusions that cracking of the airfoil sections was caused by thermal fatigue and was contributed to by low ductility due...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048498
EISBN: 978-1-62708-234-1
... Abstract A graphite-epoxy tapered-box structure, which consisted of two honeycomb skin panels fastened to a spanwise spar with intermediate chordwise ribs, fractured during testing. Hinge-line deflection of the front spar was revealed. Through-thickness cracks in the forward and trailing edges...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006924
EISBN: 978-1-62708-395-9
... and Raman Spectroscopies Thermomechanical Analysis Thermogravimetric Analysis Modulated-Temperature DSC Measuring the Degree of Cure and Conversion during Curing Differential Scanning Calorimetry Fracture Toughness Impact Testing Heat-Deflection Temperature Tensile Testing...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006933
EISBN: 978-1-62708-395-9
... Evolved Gas Analysis Thermomechanical Analysis Method Results Melt Flow Index Solid and Liquid Interactions Methods for Molecular Weight Assessment Gel Permeation Chromatography Solution Viscosity Tests for Short-Term Properties Tests and Results Case Studies Example 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
... Abstract Cracking occurred within the plastic jacket (injection molded from an impact-modified, 15% glass-fiber-reinforced PET resin.) of several assemblies used in a transportation application during an engineering testing regimen which involved cyclic thermal shock (exposing the parts...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... that occur during creep testing affect properties. Although such changes may be unavoidable, in many cases, thermomechanical processing schedules can be established to influence the changes so that they tend to strengthen the material or minimize the overall effect. For example, if a heterogeneous...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090463
EISBN: 978-1-62708-234-1
... stabilizer. In addition to the PC housing, the design of the switch included an external protective zinc component installed with a snap-fit and two retained copper press-fit contact inserts. Control parts representing an earlier production lot were available for reference purposes. Tests and Results...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... Aircraft Structural Integrity Program ASME American Society of Mechanical En- gineers ASTM American Society for the Testing of Materials AWS American Welding Society bcc body-centered cubic B Burgers vector BS British Standard BSE backscattered electrons BSI British Standards Institution CAD computer-aided...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... to the applied stress in compressive creep ( Ref 11 ). The changes in microstructure that occur during creep testing can affect properties. Although such changes may be unavoidable, in many cases, thermomechanical processing schedules can be established to influence the changes so that they tend...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001636
EISBN: 978-1-62708-217-4
... manufacture, service damage, and estimates of service stresses. There was no evidence for failure due to poor material properties. However, fractographic and fracture mechanics analyses of the service failure, a full scale test failure, and specimen test failures indicated that the service fatigue stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048850
EISBN: 978-1-62708-229-7
... to be decorated with small particles having a high sulfur content and were found to be faceted. Charpy impact specimens and compact-tension specimens were cut from a section of the steam line that contained several cracks. The Charpy impact tests showed the inside pipe wall to be tougher than the outside...