Structural mechanics of 3-D braided preforms for composites. IV - The 4-step tubular braidingThis paper presents the fundamentals of the 4-step 3D tubular braiding process and the structure of the preforms produced. Based on an idealized structural model, geometric relations between the structural parameters of the preform are analytically established. The effects of machine arrangement and operating conditions are discussed. Yarn retraction, yarn surface angle, outside diameter, and yarn volume fraction of the preform in terms of the pitch length, the inner diameter, and the machine arrangement are theoretically predicted and experimentally verified.
Document ID
19920027513
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hammad, M. (North Carolina State Univ. Raleigh, NC, United States)
El-Messery, M. (North Carolina State Univ. Raleigh, NC, United States)
El-Shiekh, A. (North Carolina State University Raleigh, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Mechanical Engineering
Meeting Information
Meeting: International SAMPE Symposium and Exhibition