Introduction to Contact Mechanics (Mechanical Engineering by Anthony C. Fischer-Cripps

By Anthony C. Fischer-Cripps

Touch mechanics offers with the elastic or plastic touch among good items, and is therefore in detail hooked up with such issues as fracture, hardness, and elasticity.

This textual content, meant for complicated undergraduates, starts with an advent to the mechanical houses of fabrics, normal fracture mechanics, and fractures in brittle solids. this can be by means of a close dialogue of stresses and the character of elastic and elastic-plastic touch. The dialogue then turns to an outline of pressure fields and their function within the formation of cracks in brittle fabrics and of sub-surface harm in ductile fabrics. The publication concludes with an summary of functional tools if indentation trying out.

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18. 19. 20. 21. 22. C. Fischer-Cripps, “The use of combined elastic modulus in the analysis of depth sensing indentation data,” J. Mater. , 16 11, 2001, pp. 3050–3052. N. Sneddon, “Boussinesq’s problem for a rigid cone,” Proc. Cambridge Philos. Soc. 44, 1948, pp. 492–507. R. A. Billings, “An approximate solution for the contact area and elastic compliance of a smooth punch of arbitrary shape,” Int. J. Mech. Sci. 32 12, 1990, pp. 991–997. G. Bilodeau, “Regular pyramid punch problem,” J. App. Mech.

J. J. Colton, “Quantitative study of nanoscale contact and pre-contact mechanics using force modulation,” Mat. Res. Soc. Symp. Proc. 594, 2000, pp. 471–476. 1 Nanoindentation Test Data The goal of the majority of nanoindentation tests is to extract elastic modulus and hardness of the specimen material from load-displacement measurements. Conventional indentation hardness tests involve the measurement of the size of a residual plastic impression in the specimen as a function of the indenter load.

37. F. D. Nix, “A method for interpreting the data from depth-sensing indentation instruments,” J. Mater. Res. 1 4, 1986, pp. 601–609. 38. C. M. Pharr, “An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments,” J. Mater. Res. 7 4, 1992, pp. 1564–1583. 39. J. Bell, A. S. V. G. Thwaite, “The determination of surface plastic and elastic properties by ultra-micro indentation,” Metrologia, 28, 1991, pp. 463–469. 40. S. V. Swain, “A simple predictive model for spherical indentation,” J.

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