Stress Field in a Coated Continuous Fiber Composite Subjected to Thermo-Mechanical Loadings

Stress fields in a continuous fiber composite with a variable interphase subjected to thermomechanical loadings are studied by using a four concentric circular cylinders model. An exact closed form solution is obtained for the stress field in the interphase in a series form using Frobenius method in a certain case. Numerical results are presented for FP fiber/Al 6061 composite with interphase, and carbon fiber/Al 6061 composite with interphase. It is found that the variableness of the thermoelastic constants in the interphase has significant effects on the stress distributions in the interphase. Therefore, this will, in turn, affect the initiation of cracks in the interphase.

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Bending fracture rule for 3D-printed curved continuous-fiber composite

Advanced Composite Materials ◽

10.1080/09243046.2018.1558327 ◽

2018 ◽

Vol 28 (4) ◽

pp. 383-395 ◽

Cited By ~ 9

Author(s):

Kouki Ishii ◽

Akira Todoroki ◽

Yoshihiro Mizutani ◽

Yoshiro Suzuki ◽

Yoichiro Koga ◽

...

Keyword(s):

Fiber Composite ◽

Continuous Fiber ◽

3D Printed ◽

Bending Fracture

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Mixed-Mode Ply Cracking in Multidirectional Continuous Fiber Composite Laminates

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.183-187.1141 ◽

2000 ◽

Vol 183-187 ◽

pp. 1141-1146

Author(s):

Jun Qian Zhang ◽

K.P. Herrmann ◽

Xiang Guo Zeng

Keyword(s):

Composite Laminates ◽

Mixed Mode ◽

Fiber Composite ◽

Continuous Fiber

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Die-less Forming of Thermoplastic-Matrix Continuous Fiber Composite Materials—Process and Demonstration

Journal of Engineering for Industry ◽

10.1115/1.2803527 ◽

1995 ◽

Vol 117 (4) ◽

pp. 501-507 ◽

Cited By ~ 1

Author(s):

K. Ramani ◽

A. K. Miller ◽

M. R. Cutkosky

Keyword(s):

Composite Materials ◽

Induction Heating ◽

Fiber Composite ◽

Fiber Composites ◽

Uniform Heating ◽

Continuous Fiber ◽

Thermoplastic Matrix ◽

Bending Behavior ◽

Fiber Composite Materials ◽

Heating Profile

Conventionally, large components made of thermoplastic matrices and continuous fibers are manufactured in autoclaves using dies. As the applications of composite materials increase, there is a need to reduce costs and increase manufacturing flexibility. This need has led to the development of a new concept called “die-less forming”. The concept of “kinematically admissible bending” is central to the concept of die-less forming. The concepts behind die-less forming have been tested in preliminary experiments on a two-roller demonstration machine. Induction heating was used to locally heat the composite as it moved into the forming zone, where it was bent using a specially designed cluster roller. Induction heating combined with a variable velocity profile was successful in establishing a uniform heating profile. Experiments were conducted for multidirectional APC-2 carbon/PEEK fiber composites and the composite bending behavior was explained using energy methods.

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