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specimen thickness

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780055
EISBN: 978-1-62708-281-5
.... The tensile stiffness and strength were measured by using dog-bone specimens that were cut in both the flow and cross-flow directions from edge-gated plaques of various thicknesses. The ratio of the cross-flow/flow tensile modulus and strength of 30% glass-filled polybutylene terephthalate (PBT), 30% glass...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610101
EISBN: 978-1-62708-303-4
... , because K can be computed for different structural geometries using stress analysis techniques. For relatively thin specimens (plane stress), the value of K c will depend on the specimen thickness B , as indicated in Fig. 5 . As the specimen becomes thicker and thicker, the plane-stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780211
EISBN: 978-1-62708-281-5
... of plane-strain conditions at the crack tip, specimen thickness, B , and the original uncracked ligament, b 0 (i.e., the distance the crack would have to extend to separate the specimen into two pieces), must be greater than 25 J Ic /σ y , where J Ic is the elastic-plastic fracture toughness, and σ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540169
EISBN: 978-1-62708-309-6
... condition. Of course, materials exhibit nonuniformity and anisotropy with respect to K IC , just as they do for other properties, and this must be taken into consideration in material evaluation. The most obvious way to measure K IC would be to test a sufficiently thick plate specimen. This may...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490021
EISBN: 978-1-62708-340-9
... in ). From Eq 2.16 to 2.18 , valid K Ic values can be derived and applied, if the thickness exceeds the range of 13 to 76 mm (0.5 to 3.0 in.). A compact tension specimen 76 mm (3 in.) thick would require a sample measuring 190 by 183 by 76 mm (7.5 by 7.2 by 3 in.)–a size too large and inconvenient...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240221
EISBN: 978-1-62708-251-8
... on fracture mechanics. For relatively thin specimens (plane stress), the value of K c will depend on the specimen thickness, B , as indicated in Fig. 13.16 . As the specimen gets thicker and thicker, the plane-stress condition transitions into plane strain. When the fracture toughness, K c...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870219
EISBN: 978-1-62708-299-0
... is particularly useful for precracked specimens, indicates both the cracking plane and the directions of crack propagation. The system uses three letters (L, T, and W) to indicate three perpendicular directions, namely L for the longitudinal direction, T for the thickness direction, and W for the width direction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230209
EISBN: 978-1-62708-298-3
... where b is the minimum specimen thickness. Using this condition, and depending on the yield and K Ic values obtained, the minimum thickness can range from approximately 1.6 to 7 mm. The ASTM E-24 subcommittee on fracture-toughness testing of beryllium, however, recommends a minimum thickness of 12.7...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780204
EISBN: 978-1-62708-281-5
... appeared to be controlled by end diffusion, and fracture was prevented by craze arrest. Above K c , craze growth was controlled by either end flow or the combination of end flow and side flow. In both cases, the final result was fracture. As the specimen thickness was increased, side flow was precluded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090333
EISBN: 978-1-62708-266-2
.... In general, the surface composition of a melt-spun ribbon is not the same as its bulk composition, although the compositions of both surfaces of ribbons prepared by twin-roll quenching are identical. In order to obtain chemically homogeneous specimens of uniform thickness and width, both surfaces and both...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630257
EISBN: 978-1-62708-270-9
..., increasing specimen thickness decreases the fracture toughness to a limiting (critical) value. Figure 4 shows that at some specified thickness (which is different for each material and heat-treated condition), crack propagation is governed by plane-strain conditions, and the critical stress-intensity...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090367
EISBN: 978-1-62708-266-2
... mechanics) specimens is based on an engineering design concept that recognizes that cracklike flaws introduced during manufacture or subsequent service are generally present in thick structural components. Moreover, the presence of such flaws can contribute to a susceptibility to SCC, which in some...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080005
EISBN: 978-1-62708-304-1
... of weight gain, metal loss, depth of attack, and oxidation rate. It also discusses the effect of metallurgical and environmental factors such as oxygen concentration, high-velocity combustion gas streams, chromium depletion and breakaway, component thickness, and water vapor. austenitic stainless...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... it employs light as the source of illumination of the specimen. These microscopes are commonly called “optical” microscopes, but in this book the authors identify the microscope by the type of illumination used. The first stage in any metallographic analysis involves the observation of the microstructure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... is preferred over Rockwell for a gray cast iron part. One must ensure the proper load is used for the test specimen thickness. Other mechanical tests are useful in confirming that the failed component conforms to specification or in evaluating the effects of surface conditions on mechanical properties...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720085
EISBN: 978-1-62708-305-8
... showing the effect of the load appears on the side of the workpiece opposite the indentation. In any event, the thickness of the specimen shall be at least ten times the depth of indentation The surface finish of the workpiece being tested should be such that the indentation diameter is clearly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.9781627083096
EISBN: 978-1-62708-309-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
.... Sullivan A.M. and Crooker T.W. , The Effect of Specimen Thickness Upon the Fatigue Crack Growth of A516-60 Pressure Vessel Steel , J. Pressure Vessel Technol. (Trans. ASME) , Vol 99 (Ser. J), 1977 , p 248 – 252 10.1115/1.3454528 5.63. Rhodes D. and Radon J.C. , Effect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
... specimen thickness. Other mechanical tests are useful in confirming that the failed component conforms to specification or in evaluating the effects of surface conditions on mechanical properties. Where appropriate, tensile and impact tests should be carried out, provided sufficient material...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140175
EISBN: 978-1-62708-335-5
... 16 in. thick plate Fig. D2.31 Growth curves for aluminum alloy 380.0-F, die cast. Specimen: 3 16 in. thick plate Fig. D2.32 Growth curves for aluminum alloy 384.0-F, die cast. Specimen: 5 16 in. thick plate Fig. D2.33 Growth curves...