Fatigue short fiber composites simulation with Abaqus subroutine
Thermoplastics containing short fiber reinforcements were first commercialized in the 1960s. The most common fiber types used in short-fiber thermoplastics are fiberglass and carbon fiber. The addition of short fibers to thermoplastic resins improves the performance of the composite for lightweight applications. In addition, short-fiber thermoplastic composites are easy and cheaper to produce than continuous-fiber composites. This trade-off between cost and performance allows staple fiber thermoplastics to be used in a myriad of applications. Fatigue short fiber composite or fatigue chopped composite is described in this tutorial.
Progressive cyclic damage evolution of short fiber reinforced PEEK composites presented significantly different patterns depending on applied stress level and on the presence of different reinforcement typologies. In order to reproduce the different fatigue damage kinetics and stages of progressive damage accumulation observed experimentally, a cyclic damage model was finally developed and implemented into a finite element code by which a satisfactory agreement between numerical prediction and experimental data at different stress levels for each examined material. Fatigue short fiber composite is a rare topic, and finding a good training resource would be hard.
This training package is based on “Fatigue behavior and cyclic damage of peek short fiber reinforced composites” article. The subroutine has been implemented based on the mentioned article. However, this article has used the USDFLD subroutine, but we use the UMAT subroutine, which is more accurate than USDFLD since the material strength and properties reduction is smooth. If you are working on a dynamic problem and need to use the explicit solver, you can order the VUMAT subroutine version of this package. Fatigue short fiber composite or fatigue chopped composite is fully described and you can boost your modeling by watching this useful package.
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