CompositesWorld
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COLUMNS 4 From the Editor 6 Past, Present and Future 8 Perspectives & Provocations 10 G ardner Business Index 22 Work In Progress Pultrusion was one of the composites industry's earliest automated processes and remains a peerless producer of profiles of unvarying axial orientation. CW senior writer emeritus Donna Dawson investigates Thomas Technik & Innovation's Radius-Pultrusion process, what looks to be the first commercially viable technology to escape pultrusion's historically linear limitations. » DEPARTMENTS 11 Trends 38 Calendar 39 Applications 40 New Products 42 Marketplace 42 Ad Index 43 Showcase » ON THE COVER Cut patterns are hand-laid on a multi-piece mold tool for what will eventually be an Ox-Ox CMC mixer, one of four components designed to handle exhaust gases and extremes of heat in the "hot zone" of jet engines used to power today's long-range business jets. CW's cover story details the R&D; behind the Ox-Ox CMC material and how it is processed into highly heat- resistant parts. See p. 32. Source / Composites Horizons FOCUS ON DESIGN 44 Collaboration Produces Winning Paddleboard Design, and design for manufacturability, come together in this racing-bred stand-up paddleboard intended for both one-off and serial production by Thailand-based composites design and manufacturing giant Cobra International. By Sara Black CompositesWorld (ISSN 2376-5232) is published monthly and copyright © 2017 by Gardner Business Media Inc. 6915 Valley Ave., Cincinnati, OH 45244- 3029. Telephone: (513) 527-8800. Printed in U.S.A. Periodicals postage paid at Cincinnati, OH and additional mailing offices. All rights reserved. POSTMASTER: Send address changes to CompositesWorld Magazine, 6915 MEMBERSHIPS: Valley Ave., Cincinnati, OH 45244-3029. If undeliverable, send Form 3579. CANADA POST: Canada Returns to be sent to IMEX Global Solutions, PO Box 25542, London, ON N6C 6B2 Canada. Publications Mail Agreement #40612608. The information presented in this edition of CompositesWorld is believed to be accurate. In applying recommendations, however, you should exercise care and normal precautions to prevent personal injury and damage to facilities or products. In no case can the authors or the publisher accept responsibility for personal injury or damages which may occur in working with methods and/or materials presented herein, nor can the publisher assume responsibility for the validity of claims or performance of items appearing in editorial presentations or advertisements in this publication. Contact information is provided to enable interested parties to conduct further inquiry into specific products or services. FE ATURES 26 Accelerating Materials Insertion: Where Do Virtual Allowables Fit? Critics say the time-consuming, expensive pyramid or "building block" approach (BBA) that relies on physical testing for aerocomposite design allowables development, beginning at the coupon level, could be streamlined or even replaced by a virtual testing approach (VA) using today's sophisticated simulation software. Here, proponents of BBA and VA face off, to discuss whether, in the quest to reduce time and cost, conventional physical testing and virtual testing will go head-to-head or work side-by-side. By Ginger Gardiner 32 Inside Manufacturing Ceramic-matrix Composites: Hot Engine Solution Aircraft engine manufacturers have spent years investigating exotic materials that show potential for reliable performance at the extreme temperatures (~1093°C) generated during jet engine service lives. Among the top candidates have been ceramic-matrix composites, including this winner developed by Composites Horizons (Covina, CA, US). By Donna Dawson 32 22 11 39 CompositesWorld.com 1 JUNE 2017 / Vol: 3 N o – : 6 TABLE OF CONTENTS