IUTAM Symposium on Size Effects on Material and Structural - download pdf or read online

By Q. P. Sun, P. Tong

ISBN-10: 1402049455

ISBN-13: 9781402049453

ISBN-10: 1402049463

ISBN-13: 9781402049460

This quantity is a set of twenty 5 written contributions through extraordinary invited audio system from seven international locations to the IUTAM Symposium on dimension results on fabric and Structural habit at Micron- and Nano-scales. measurement results on fabric and structural behaviors are of serious curiosity to physicists, fabric scientists, and engineers who have to comprehend and version the mechanical habit of solids in particular at micron- and nano-scales.

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Read Online or Download IUTAM Symposium on Size Effects on Material and Structural Behavior at Micron- and Nano-Scales: Proceedings of the IUTAM Symposium held in Hong Kong, China, ... 2004 (Solid Mechanics and Its Applications) PDF

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1999) Self-similarity of crack propagation in inhomogeneous materials, Phil. Mag. Lett. 79, 187-193. Fineberg, J. and Marder, M. (1999) Instability in dynamic fracture, Phys. Rep. 313, 1-108. , and Fratzl, P. (2003) Materials become insensitive to flaws at nanoscale: Lessons from nature, Proc. Natl. Acad. Sci. USA 100, 5597-5600. J. and Roux, S. ) (1990) Statistical Models for the Fracture of Disordered Media, NorthHolland, Amsterdam. D. (2002) Fracture statistics of brittle materials: Weibull or normal distribution, Phys.

2 L Figure 5. Size effect of the tensile strength of microcracked solids under tension. X. Q. 3. AGGLOMOERATION EFFECT In actual materials, the position distribution and damage evolution of microcracks are usually non-uniform in space. The conventional estimation methods of effective elastic moduli are applicable only for statistically homogeneous materials. Here we examine how non-uniform distributions of microcrack locations influence the elastic moduli. Assume that microcracks of identical size are distributed non-uniformly in a solid.

The shielding effect of discrete dislocations on the crack growth has been studied. The selection of the elastic core size t, the intersection radius between macron scale and micron scale, has been determined from a stationary value theorem that the total energy release rate should take the stationary value. According to present analysis, we have obtain elastic core size t ≈ R0 / 6, in submicron level. Acknowledgements The work is supported by National Science Foundations of China through Grants 10432050 and 10428207.

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IUTAM Symposium on Size Effects on Material and Structural Behavior at Micron- and Nano-Scales: Proceedings of the IUTAM Symposium held in Hong Kong, China, ... 2004 (Solid Mechanics and Its Applications) by Q. P. Sun, P. Tong


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