Reinforced-plastic micromechanics

Haener, J., Ashbaugh, N., Chia, C. Y., Teng, M. Y. Investigation of the Micromechanical Behavior of Fiber Reinforced Plastics, USAAVLABS-TR-66-66... 

Karbhari VM, Simacek P. Notes on the modeling of preform compaction II -Effect of sizing on bundle level micromechanics. Journal of Reinforced Plastics and Composites, 1996 15(8) 837-861. DOI 10.1177/073168449601500807. 

Scanning transmission X-ray microscopy has been used most extensively for polymer research, e.g. for bulk characterisation of polymeric materials with chemical sensitivity at a spatial resolution of 50 nm [739], STXM has also been used for the analysis (morphology, size distributions, spatial distributions and quantitative chemical compositions) of copolymer polyol-reinforcing particles in polyurethane [740], Pitkethly [741] has reviewed the role of microscopy in the evaluation of fibre/matrix interfacial properties and micromechanical characteristics of fibre-reinforced plastic composites. 

In addition to influences of mechanical load on degradation in polymer chains, unexpected degradation can occur due to the initiation of specific micromechanical processes and mechanisms. Such mechanisms (shear flow, craze formation, cavitation, etc.) are initiated in particular in inhomogeneous polymers (blends, filled and reinforced plastics, etc.) by inhomogeneous stress distributions caused by external mechanical loads. Typical examples for such physical aging processes are ABS materials with an unfavorable size distribution of rubber particles [72],... 

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