Fatigue damage analysis of fiber-reinforced polymer composites—A review

Abstract

Fiber-reinforced polymer composites are becoming suitable and substantial materials in the repair and replacement of conventional metallic materials because of their high strength and stiffness. These composites undergo various types of static and fatigue loads during service. One of the major tests that conventional and composite materials have to experience is fatigue test. It refers to the testing for the cyclic behavior of materials. Composite materials are different from metals, as they indicate a distinct behavior under fatigue loading. The fatigue damage and failure mechanisms are more intricate in composite materials than in metals in which a crack initiates and propagates up to fracture. In composite materials, several micro-cracks initiate at the primary stage of the fatigue growth, resulting in the initiation of various types of fatigue damage. Fiber volume fraction is an important parameter to describe a composite laminate. The fatigue strength increases with the increase of the fiber volume fraction to a certain level and then decreases because of the lack of enough resin to grip the fibers. The fatigue behavior of fiber-reinforced polymer composites depends on various factors, e.g., constituent materials, manufacturing process, hysteresis heating, fiber orientation, type of loading, interface properties, frequency, mean stress, environment. This review paper explores the effects of various parameters like fiber type, fiber orientation, fiber volume fraction, etc. on the fatigue behavior of fiber-reinforced polymer composites.

Tribological behaviour of fibre-reinforced thermoset polymer composites: A review

“…Nowadays, fibre-reinforced polymer (FRP) composite materials are fast replacing the conventional materials in a wide array of fields, such as aerospace, transportation, biomedical equipment, automobiles, mining industries, etc. 1–3 In recent years, the FRP composite materials have become an essential class of tribo-materials due to their self-lubricating properties, low friction coefficient, high resistance to corrosion, generation of less noise in running condition and also for high flexibility in designing of components. 4–7 Roughly one-third of the fuel energy gets exhausted in automobiles alone to overcome friction.…”

Abrasive waterjet machining of fiber-reinforced composites: a state-of-the-art review

“…PEEK and polyamide are the widely used matrix materials among thermoplastic resins [16]. Various methods such as hand layup, vacuum-assisted resin transfer molding, resin transfer molding, pultrusion are mostly used for the preparation of laminated composite [17].…”

Applicability of Strain Controlled Cyclic Tests for Short Fibre Reinforced Polymers

“…They propagate until they meet and form a macroscopic crack. [10] Mortazavian shows in [38] a similar behaviour for two fibre reinforced materials (PBT and PA6) under stress control. This suggests that a stress based lifetime assessment can be conducted up to high stress amplitudes for highly filled polymers.…”

“…Besides this approach a counting number of different methods were developed to predict the lifetime of reinforced polymers. In literature an excerpt of the latest fatigue-models [10] [11] [12] [13] and techniques [14] [15] is given. Necessary models which describe the influence of fibre orientation [16] [17] [18], temperature [19] [20], notches [21] and mean stress [22] [23] [24] are already included.…”