On the theory of hertzian fracture
WebHertzian fracture of brittle materials By K. L. Johnson/}- J. J. O’Connor^ and A. C. W oodw ard§ t University Engineering Department, Cambridge, England J University Engineering Department, Oxford, England § Physics &Chemistry of Solids, Cavendish Laboratory, Cambridge, England {Communicated by D. Tabor, F.B.S. - Received 8 January 1973) Web15 de jun. de 2024 · Fig. 4 shows the average value of the ratio of ring crack radius r RC to contact circle radius a th obtained from the Hertzian theory (r RC /a th) for the virgin, WQ, FQ-A, and FQ-V Conclusion Sphere indentation tests were performed to investigate ring crack initiation strength characteristics of ceramic balls subjected to thermal shock.
On the theory of hertzian fracture
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Web14 de jan. de 2010 · Indentation fracture, so-called, is of historical as well as practical interest. It dates back to 1880 with the celebrated studies of Hertz (see Hertz 1896) on conical fractures at elastic contacts between curved glass surfaces. The fully developed Hertzian cone crack is the prototypical stable fracture in brittle solids. Web20 de dez. de 1999 · Hertzian indentation has been used to determine the surface residual stress levels in brittle materials. In this method, a hard sphere is pressed into the surface of the material: at a critical ...
Web1 de jun. de 2015 · On the theory of Hertzian fracture. Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences (1967) K. Zeng et al. Elastic modulus determined by Hertzian indentation. Journal of Materials Science (1992) View more references. Cited by (21) Web1 de set. de 1995 · In this paper the Auerbach's scaling law of Hertzian fracture induced by a spherical indenter pressing on a brittle solid is studied. ... Based on the surface elasticity theory, we investigate the effect of surface tension on miniaturized contact problems of an elastic graded half-plane under plane strain and axisymmetric situations.
WebStrobl M, Dowgiałło P and Seelig T (2024) Analysis of Hertzian indentation fracture in the framework of finite fracture mechanics, International Journal of Fracture, 10.1007/s10704-017-0201-7, 206:1, (67-79), Online publication date: 1-Jul-2024. WebExtension of an earlier theory of Hertzian fracture in brittle isotropic materials is here made to include the case of brittle single crystals, with particular reference to crystals having the diamond structure. A detailed description is first given of the inhomogeneous stress field in a flat, elastic specimen loaded normally with a hard sphere.
Web19 de out. de 2007 · Fischer-Cripps AC (1997). Predicting Hertzian fracture. J Mat Sci 32: 1277–1285 Article CAS Google Scholar Frank FC and Lawn BR (1967). On the theory of Hertzian fracture. Proc Roy Soc Lond A299: 291 Google Scholar Holmquist TJ and Johnson GR (2005).
WebThe critical load for cone fracture then becomes nearly propor-tional to r2, as observed. The previous calculations of Roesler (s956 a, b) relate to the second stable crack dimension, C3, though his energy scaling principle is also applicable to the critical condition at which c1 and c2 merge. The Hertzian fracture test, within the validity smarsh competitorsWebadhesion is the Johnson–Kendall–Roberts (JKR) theory (Johnson et al. 1971), which balances the elastic distortion of the contact pair against the reduction in surface Received 31 October 2003 hilfe supportWebOn the theory of Hertzian fracture By F. C. Frank, F.R.S. and B. R. Lawn H. H. Wills Physics Laboratory, University of Bristol (Received 30 August 1966—Read 20 April 1967) [Plate 2] The fracture of a brittle solid under a spherical indenter is the best studied case of fracture in a strongly inhomogeneous, well defined, stress field. smarsh connected captureWeb11 de abr. de 2024 · Rolling contact between wheel and rail plays a vital role in many related wheel/rail damage modes, mainly including wear and rolling contact fatigue (RCF) [1,2,3].With the growing demand of increased axle load and high speed, RCF, which is caused by repeated contact stress during the rolling motion, has become a severe and … smarsh conductWeb1 de out. de 2024 · The classical Hertzian contact tests using a spherical indenter look simple but in fact they are complex as the contact area increases for larger indentation loads, and therefore the surface trace of an initiated conical crack can be easily engulfed by the expanding contact circle, which causes secondary fracture because of the … smarsh companyWebHertzian fracture produced by steel ball indenters on vitreous carbon is qualitatively similar to Hertzian fracture of soda-lime glass. The bulk material obeys Auerbach's law, i.e. the … smarsh competitors gartnerWeb1 de out. de 2024 · Phase field fracture modeling, derived from the variational theory of Francfort and Marigo (1998), has in recent years become a very popular computational … smarsh compliance