By Y. C. Fung
Revision of a vintage textual content by means of a unique writer. Emphasis is on challenge formula and derivation of governing equations. re-creation positive aspects elevated emphasis on purposes. New bankruptcy covers long term adjustments in fabrics below rigidity.
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Extra resources for A first course in continuum mechanics: for physical and biological engineers and scientists
1 Low-rate testing of rocks Samples obtained from Ürgüp and Avanos (Özkonak Underground City) are tested under different strain rates at the rock mechanics laboratory of Nagoya University. 19. Tests on samples obtained from Derinkuyu underground city are still continuing. As seen from the figure, it seems that the strength and deformation modulus of Cappadocia tuffs decrease as the strain rate imposed on the samples decreases. These results are quite similar to those reported in rock mechanics literature (Aydan & Nawrocki, 1998).
12) (a) Dynamic uniaxial compression test The uniaxial compression experiments are generally carried out using cylindrical samples. The height of the sample is generally less than its diameter. In other words, such an aspect ratio of height to diameter introduces shape effect into the experimental results. 23 shows dynamic strain-stress relations of various rocks reported by Yavuz et al. 6. , 2013). Time-dependent (rate-dependent) behaviour of rocks 23 relations exhibit elastic-strain hardening response.
The material properties used in the finite element analyses are the same as those used in the simulation of the impression model. 47(b)). The platen was assumed to be 1 cm thick. One fourth of the sample is modelled using the symmetric characteristics of the problem. 48 shows the computed deformed configuration, minimum principal stress contours (tension is assumed to be positive) and maximum shear stress distribution. The minimum principal stress and maximum shear stress contours resemble to pressure bulbs as expected.
A first course in continuum mechanics: for physical and biological engineers and scientists by Y. C. Fung