Modelling and Analysis of Composite Leaf Spring under the Static Load Condition by using FEA

Patunkar, Mandar Manohar; Dolas, Dhananjay R.

doi:10.47893/ijmie.2011.1001

Cited by 30 publications

(9 citation statements)

References 3 publications

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“…Patunkar et al [ 6 ] presented a comparison of a suspension system composed of glass fiber and steel leaf spring after carrying out their complete design and analysis using Pro-E ® and ANSYS 10.0 ® . The results presented in their research work showed that the deflection of the steel leaf spring was better than the composite leaf spring but at the cost of weight.…”

Section: Introductionmentioning

confidence: 99%

A Novel Framework for Qualification of a Composite-Based Main Landing Gear Strut of a Lightweight Aircraft

et al. 2023

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The determination of suitable testing and qualification procedures for fiber-reinforced polymer matrix composite structures is an active area of research due to the increased demand, especially in the field of aerospace. This research illustrates the development of a generic qualification framework for a composite-based main landing gear strut of a lightweight aircraft. For this purpose, a landing gear strut composed of T700 carbon fiber/epoxy material was designed and analyzed for a given lightweight aircraft having mass of 1600 kg. Computational analysis was performed on ABAQUS CAE® to evaluate the maximum stresses and critical failure modes encountered during one-point landing condition as defined in the UAV Systems Airworthiness Requirements (USAR) and Air Worthiness Standards FAA FAR Part 23. A three-step qualification framework including material, process and product-based qualification was then proposed against these maximum stresses and failure modes. The proposed framework revolves around the destructive testing of specimens initially as per ASTM standards D 7264 and D 2344, followed by defining the autoclave process parameters and customized testing of thick specimens to evaluate material strength against the maximum stresses in specific failure modes of the main landing gear strut. Once the desired strength of the specimens was achieved based on material and process qualifications, qualification criteria for the main landing gear strut were proposed which would not only serve as an alternative to drop test the landing gear struts as defined in air worthiness standards during mass production, but would also give confidence to manufacturers to undertake the manufacturing of main landing gear struts using qualified material and process parameters.

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Section: Introductionmentioning

confidence: 99%

A Novel Framework for Qualification of a Composite-Based Main Landing Gear Strut of a Lightweight Aircraft

et al. 2023

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“…They compared the stress, deflection, and weight reduction ratio analysis results to the current analytical and experimental solutions. Furthermore, composites are roughly 40% lighter than traditional steel leaf springs [8]. Dev dutt Dwivedi and V.K.Jain.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of composite materials leaf spring used in automotive

Adwan

Kader

Zedan

2021

DJES

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product modifications or replacement of old products with new and improved material items. Vehicle suspension systems are another area where these developments are carried out on a regular basis. More efforts are being made to improve the user's comfort. Appropriate combination of comfort riding attributes and economics in leaf spring production becomes an evident requirement. Many changes have been made to the suspension system throughout time in order to enhance it. Some of the most recent suspension system innovations include the invention of the parabolic leaf spring and the usage of composite materials for these springs. The implementation of composite materials by replacing steel in conventional leaf springs of a suspension system. Composite material having a lot of good properties like simple fabrication, low weight and low cost to performance .The purpose of this study is to investigate the structural properties of a hybrid leaf spring consisting of 95% Epoxy, 5% carbon, 5% glass fiber, and 5% hybrid carbon-glass fiber composite. The various specimens were produced using the manual layup method, specimen were subjected to tensile, hardness, and fatigue tests, with all data reported and compared. The experimental results showed an increase in Hardness, Tensile, and fatigue life when the reinforcing fibers are applied. The best results of the mechanical test obtained when hybrid reinforcement was applied.

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“…The tensile over delayed load cycles and under compressive load increased the development of fatigue crack. 6 Fractography must be analyzed by the SEM technique for failure analysis. 7 The performance of vehicle components such as air suspension; it relates to vehicle safety.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of heavy vehicle suspension system under varying load conditions

Thillikkani¹,

Nataraj²

2020

Advances in Mechanical Engineering

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Leaf spring experiences frequent cyclic loading during working conditions. When design stage itself it is very essential to assess the fatigue life of the suspension system. It is important to consider and evaluate the key aspects of fatigue failure and life by using Finite Element Analysis (FEA) techniques to overcome these failures. This paper serves to stimulate the premature failure of the existing and proposed bracket model with generalized force elements under dynamic load conditions. Scanning Electron Microscope (SEM) was used to identify the bracket failure prone areas which indicate that the cyclic load in the suspension system is caused by rural area road-induced vibrations and bumps. This contributes to the increase of the fatigue fracture, which ends up with a bracket failure. The results indicated that the fatigue life of existing bracket is low for rough road conditions; the modified bracket has been optimized for the safe load conditions of the heavy vehicle suspension system

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Modelling and Analysis of Composite Leaf Spring under the Static Load Condition by using FEA

Cited by 30 publications

References 3 publications

A Novel Framework for Qualification of a Composite-Based Main Landing Gear Strut of a Lightweight Aircraft

A Novel Framework for Qualification of a Composite-Based Main Landing Gear Strut of a Lightweight Aircraft

Experimental analysis of composite materials leaf spring used in automotive

Fatigue life prediction of heavy vehicle suspension system under varying load conditions

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