An experimental investigation into the mechanical behaviors of helical composite springs

Numerical method for optimizing design variables of carbon-fiber-reinforced epoxy composite coil springs

“…Chiu et al [12] and Mallick [13] conducted experiments to determine the mechanical behaviors and performance of helical composite springs with structures of different materials. Yildirm and Sancaktar [14] studied the free vibration characteristics of symmetric cross-plylaminated cylindrical helical springs, and Yildirm [15] performed a parametric study on the natural frequency of helical springs.…”

Karbon Elyaf Takvi̇yeli̇ Karbon Nanotüp Katkili Epoksi̇ Kompozi̇t Heli̇sel Yaylarin Mekani̇k Davranişlari

“…Bu kısıtlar, geleneksel malzemelerden üretilen helisel yaylarda önemli ölçüde olumsuzluk oluşturmaktadır. Elyaf takviyeli kompozitlerin bu tip kısıtlara ve olumsuzluklara karşı yüksek direnç gösterdiği yapılan araştırmalardan anlaşılmaktadır [2,7]. Chiu vd.…”

“…Chiu vd. [7] elyaf takviyeli polimer kompozit yay üzerinde çalışmışlar ve bu yayların bilhassa titreşimli ortamlarda daha iyi elastik davranışlar sergilediklerini görmüşlerdir. Çolakoğlu [8], yayların sönüm kabiliyetlerini incelendiği araştırmasında; elyaf takviyeli polimer kompozitlerin, metal ve alaşımlarına oranla, titreşim frekansı sönüm kabiliyetinin oldukça yüksek olduğunu gözlemlemiştir.…”

A Review: Fiber Reinforced Polymer Composite Helical Springs

“…It is obtained that the helical composite spring with a BUR structure has the highest mechanical properties among the four types of helical composite springs, its failure load in compression approximately equals 3297 N and the spring constant is almost 160 N/mm. According to the result have been obtained, the helical composite spring with a rubber core can increase its failure load in compression by about 12%; while the spring with a braided outer layer can not only increase its failure load in compression by about 18%, but also improve the spring constant by approximately 16% [15]. Ekanthappa, J. et al studied on the fabrication and strength of glass fiber reinforced epoxy composite helical springs.…”

“…As a result of their research study, composite helical springs are providing good stiffness and low weight system than conventional material systems [14]. Table 3: The four kinds of preformed composite bars with different structures [15] Sequeira, A. A et al in their research paper discussed the behavior of carbon and kevlar composite helical spring and steel helical spring with related to light vehicle suspension system investigated by a static analysis.…”