Optical Microscopy of Fiber-Reinforced Composites
Chapter 8: Void Analysis of Composite Materials
Achieving the best-performing composite part requires that the processing method and cure cycle create high-quality, low-void-content structures. If voids are present, the performance of the composite will be significantly reduced. There are multiple causes of voids in composite materials; they are generally categorized as voids that are due to volatiles (such as solvents, water) or voids that result from entrapped air. This chapter describes the analysis of various types of voids. It reviews techniques for analysis of voids at ply-drops, voids due to high fiber packing, and voids that occur in honeycomb core composites. The final section of the chapter discusses void documentation through the use of nondestructive inspection techniques and density/specific gravity measurement methods.
Void Analysis of Composite Materials, Optical Microscopy of Fiber-Reinforced Composites, By Brian S. Hayes, Luther M. Gammon, ASM International, 2010, p 147–158, https://doi.org/10.31399/asm.tb.omfrc.t53030147
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New Handbook: Volume 11B
Now available in the Digital Library! Volume 11B serves as a reference and guide to help engineers determine the causes of failure in plastic components and make corrective adjustments through design and manufacturing modifications.