Show simple item record

contributor authorKirby, Madeline
contributor authorNaderi, Armaghan
contributor authorPalardy, Genevieve
date accessioned2023-11-29T19:24:54Z
date available2023-11-29T19:24:54Z
date copyright12/5/2022 12:00:00 AM
date issued12/5/2022 12:00:00 AM
date issued2022-12-05
identifier issn1087-1357
identifier othermanu_145_3_031009.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4294738
description abstractUltrasonic consolidation (USC) of thermoplastic composites is a highly attractive and promising method to manufacture high-performance composites. This work focuses on USC of dry carbon fiber (CF) fabrics with high-temperature polyphenylene sulfide (PPS) films. Experimental trials to assess feasibility of the process are time-consuming. Consequently, a predictive thermal model would facilitate process parameters selection to reduce expensive trial-and-error approaches. This paper presents a 2D finite element model of samples under consolidation, incorporating equations for viscoelastic heating, matrix phase change, and material properties. Theoretical temperature profiles for nodes of interest were compared to the corresponding experimental temperature curves for various control parameters (i.e., weld time and vertical displacement of sonotrode) and showed good agreement during heating phase. It was found that welding time values below 1750 ms were insufficient to reach melting temperature, whereas weld times above 3000 ms led to the lowest average void content (2.43 ± 0.81%). More specifically, the time the material spent above melting temperature, i.e., residence time, was established as a parameter that could estimate cases resulting in better consolidation and lower void content (time above 2600 ms for void content below 2.5%). X-ray diffraction (XRD) characterization revealed that the USC process led to mostly amorphous PPS, due to the high cooling rates (70 °C/s to 108 °C/s). Overall, the thermal model and micro-structural outcomes confirmed the feasibility of the USC process for layered composites made from dry fabric and high-temperature thermoplastic films.
publisherThe American Society of Mechanical Engineers (ASME)
titlePredictive Thermal Modeling and Characterization of Ultrasonic Consolidation Process for Thermoplastic Composites
typeJournal Paper
journal volume145
journal issue3
journal titleJournal of Manufacturing Science and Engineering
identifier doi10.1115/1.4056147
journal fristpage31009-1
journal lastpage31009-13
page13
treeJournal of Manufacturing Science and Engineering:;2022:;volume( 145 ):;issue: 003
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record