Study on Thermo-plastic Deformation for One-Piece Brake Disks Doshisha Univ

Format:

Conference/Event

Author/Creator:

Sasada, Masahiro, author.

Conference Name:

International Congress & Exposition (1998-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

Braking tests under overloading were carried out using large one-piece brake disks having eyebrow-shaped holes as decoration. When the number of braking cycles was more than five, permanent deflection of the disks was observed. When the number of braking cycles was less than six, no appreciable deflection occured. The experiment revealed that such deflection occurrs during the cooling process after the final braking cycle. The mechanism for this phenomenon is explained based on the deflection-time record in conjunction with the temperature distribution of disks and its variation with respect to time. The key for this phenomenon is yielding in tension at the bridges between holes. The deflection occurs due to elastic-plastic buckling caused by shrinkage of the flange. Numerical simulations were successfully conducted by using a general 3D FEM in consideration of geometrical and material non-linearities. Reasonable agreements between calculated and experimental results were obtained, which means that the FEM is applicable to evaluate the sensitivity against the temperature induced deflection for patterns of holes and their layout

Notes:

Vendor supplied data

Publisher Number:

980593

Access Restriction:

Restricted for use by site license