An In-Depth Assessment of the Fatigue Life of the Different Blade Materials under Varied Conditions: Identifying their Reliability and Durability

Abstract

The study assessed the fatigue life of the different blade materials under varied conditions to identify the most durable and reliable material. The research approach adopted for this study is a combination of a comprehensive literature review and a rigorous computational analysis using Finite Element Analysis (FEA).Finite Element Analysis (FEA) is a computer-aided engineering (CAE) tool employed to simulate the physical behavior of structures and materials. This tool allows for detailed analysis under a multitude of conditions, including various types of loading and environmental stresses. The first step in the FEA-based structural analysis is to develop a model of the wind turbine blade. Structural loads on wind turbine blades primarily consist of gravitational, aerodynamic, and centrifugal forces. Environmental conditions play a pivotal role in the performance and durability of wind turbine blades. The analysis procedure will be an iterative process that employs Finite Element Analysis (FEA) methods for structural evaluation. The chosen approach, involving Finite Element Analysis (FEA), is justified due to its proven effectiveness in predicting the structural response of complex structures such as wind turbine blades under varying loading conditions While the Finite Element Analysis (FEA) approach is a powerful tool for modeling and analyzing the structural behavior of wind turbine blades, it comes with some limitations. To minimize these limitation, the model will be validated against experimental data, and a sensitivity analysis will be performed to assess the impact of the different parameters on the results. The study found out that wind turbine blades are paramount components, directly influencing the efficiency and longevity of the turbine. The choice of material for these blades is a critical decision, influenced by various factors such as longevity, cost, durability, efficiency, and more. It was concluded that for small-scale onshore wind turbine projects, where budget considerations weigh more heavily, alternatives like Pine and Bamboo come to the fore. These materials, while not matching CFRP's mechanical performance, offer their unique set of sustainability advantages. Pine, widely available in the UK and other regions, aligns with cost-effectiveness, reducing production expenses. One of the recommendations made was that educational campaigns should be launched to raise awareness about the importance of sustainable wind energy. Engage communities and stakeholders in sustainable practices.