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Fractme mechanics

During the lapping process, it is possible to have two types of stock removal mechanism. One of them we named as double fractme mechanism. The fracture is a macrofracture and is the effect of a grain that works like an indenter (Figure 11.1). [Pg.258]

Greig JM, Leevers PS, Yayla P (1992) Engineering Fractme Mechanics 42 663... [Pg.33]

Marshall GP, Cnlver LE, Williams JG (1970) Craze growth in poly(methyl methacrylate) a fractme mechanics approach. Proc R Soc Lond A Math Phys Eng Sci 319(1537) 165-187... [Pg.148]

In terms of the fractme mechanics qitalrfication of service life for failirre region B under additional local loading, a distinction must be drawn between two cases ... [Pg.325]

The TiO nanoparticles can be modified by vinyltrimethoxysilane for dispersing in polyethylene matrix [37]. In a similar manner, the SiO nanoparticle is modified by the 3-aminopropyltrimethoxysilane and 3-glycydyloxypropyltrimethoxysilane to improve the mechanical properties [38] and fractme toughness [39] respectively. ZnO nanoparticle is modified by 3-(trimethoxysilyl) propyl methacrylate (TPMA) surfactant [34]. Researchers have also modified the CaCO nanoparticle with stearic acid to improve the compatibility with the polypropylene matrix [30,40]. [Pg.272]

In order to determine fractme toughness, stress intensity approach and energy approach are applied. The stress intensity approach yields fracture toughness The energy approach provides a critical energy release rate (G. ). Fractme toughness of particle-filled polymer composites shows a very complex variation with increasing particle fraction. The particle size distribution parameter is the one aspect which plays a decisive role on the structmal and mechanical properties of the components and the... [Pg.386]

In addition to the discussed factors, the type of loading (quasi-static or dynamic) affects the mechanical response and fractme behavior of particulate polymer composites. [Pg.391]

The fmther decrease of K c at temperatures above 40 °C seems to present quite a significant drop between 60 and 80 °C (Fig. 82). Such a behaviour could be related to the occmrence of the CDC mechanism, which occurs at 60 °C in thin film deformation (Sect. 4.2). The lack of TMBPA-PC samples with various MWs do not allow a deeper analysis of the fractme behaviour in this temperatme range. [Pg.314]

Shear Fracture. Polymer failure is initiated when critical shear stresses are exceeded. Stretching at the separation faces ultimately leads to lips and peaks that on two mating fracture surfaces point toward each other. Fracture due to shear failure can only be distinguished from that due to tear fracture on two mating fractme smTaces. The separating mechanism involved is that of normal stress fractme and tear fractme, since gliding along defined crystal planes as in metals cannot occur (Fig. 5). [Pg.3407]

Fractm-e mechanics is based on continuum mechanics and is therefore only apphcable when aU relevant length scales are large compared to the length scale of the microstructure (for example, the grain size). [Pg.130]

Matziolis, G., J. Tuischer, G. Kasper et al. 2006. Simulation of cell differentiatin in fractme heahng Mechanically loaded composite scaffolds in a novel bioreactor system. Tissue Engineering 12(1) 201-208. [Pg.591]


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