In this study, simulation program was developed for a new three dimensional braiding technique, and the braiding machine was made for fabricating tubular braiding fabrics with the through-the-thickness fibers ("Thick tubular braid"), which give multiple functions. The braiding technique developed is availble for the fabrication of thick tubular component.
　The bending properties of the composite tubes reinforced by tubular braids with through-the-thickness fibers were evaluated. The bending properties of thick tubular braided tubes was found to be more superior than that of the conventional multiple braided tubes without the through-the-thickness fibers, and it was also indicated that the through-the-thickness fibers were available for prohibiting interlamina delamination.

DESCENTE SPORTS SCIENCE Vol.15/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE