Three-dimensional stress analysis of orthotropic curved tubes-part 1: Single-layer solution

Sarvestani, Hamidreza Yazdani; Hoa, Suong V.; Hojjati, Mehdi

doi:10.1016/j.euromechsol.2016.06.005

Cited by 12 publications

(16 citation statements)

References 25 publications

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“…Based on the developed displacement components in (Yazdani Sarvestani et al, 2016), the general form displacement field of single-layer composite curved tubes of the kth plane and up to the nth order is presented as (the detailed derivation can be found in (Yazdani Sarvestani et al, 2016) …”

Section: Displacement Field Of Laminated Composite Curved Tubesmentioning

confidence: 99%

“…(5) to develop the displacement field for laminated composite curved tubes. Based on the detailed derivation in (Yazdani Sarvestani et al, 2016) (Part 1), there are one unknown constant for the zeroth order (i.e., a 0 ), five unknown constants for the 1st order (i.e., a 1 , b 1 , c 1 , e 1 and f 1 ) and six unknown constants for the nth order (n ¼ 2, 3, …) (i.e., a n , b n , c n , d n , e n and f n ). Table 1 presents unknown constants and corresponding global equilibrium equations which are used to calculate them.…”

Section: Layerwise Theory (Lwt)mentioning

confidence: 99%

“…The displacement field of single-layer composite curved tubes was derived using Toroidal Elasticity and the method of successive approximation (Yazdani Sarvestani et al, 2016). Now, by developing the displacement field of thick laminated composite curved tubes based on the displacement field of single-layer composite curved tubes using a layerwise method, a new displacement-based method is proposed to analyze stresses in composite curved tubes subjected to pure bending moment.…”

Section: Formulationmentioning

confidence: 99%

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Three-dimensional stress analysis of orthotropic curved tubes-part 2: Laminate solution

Sarvestani

Hojjati

2016

European Journal of Mechanics - A/Solids

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Section: Displacement Field Of Laminated Composite Curved Tubesmentioning

confidence: 99%

Section: Layerwise Theory (Lwt)mentioning

confidence: 99%

Section: Formulationmentioning

confidence: 99%

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Three-dimensional stress analysis of orthotropic curved tubes-part 2: Laminate solution

Sarvestani

Hojjati

2016

European Journal of Mechanics - A/Solids

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“…Even though they have done experimental works, the analytical method does not exist to analyze thick composite tubes. Recently, the analytical method was developed by the authors 21,22 to investigate the curved part of helicopter landing gears. Here, the straight part is considered.…”

Section: Motivationmentioning

confidence: 99%

Effects of lay-up sequence in thick composite tubes for helicopter landing gears

Sarvestani

Hojjati

2016

Proceedings of the Institution of Mechanical Engineers, Part G:

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Analysis and design of composite helicopter landing gears are challenges. Cross tubes of helicopter landing gears consist of straight tubes at the middle and curved tubes at the sides. In this work, to simulate ground handling, thick laminated composite straight tubes subjected to pure bending moments are studied using a new high-order simple-input analytical method. The accuracy of the proposed method is subsequently verified by comparing the numerical results obtained using the proposed method with finite element method and experimental data. The results show good agreement. High efficiency in terms of computational time is achieved when the proposed method is used as compared with finite element method. In addition, a simple non-dimensional coefficient is proposed to predict interlaminar radial stresses of thick composite straight tubes.

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“…In addition, the design of a composite riser (thick composite tube) can be optimized to specific requirements by modifying some of its design variables, such as fiber and matrix combinations, fiber orientations, thicknesses of the liner and composite lamina, and stacking sequence, to enhance the benefits offered by FRP composites risers using different methods, e.g., finite element analysis [22,[26][27][28][29], simple-input displacement-based method [30,31] and optimization algorithms [21,[32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Vortex-Induced Vibration of FRP Composite Risers with Large Length to Diameter Ratio Under Different Environmental Situations

Wang

Sun

et al. 2019

Applied Sciences

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The increasing attraction of crude resources on the ocean floor leads to the development of risers, which are an indispensable component of an offshore oil and gas exploitation structure. High-grade steel is normally utilized for risers, however, fiber reinforced polymer (FRP) composite risers have become a feasible and economical alternative due to the desirable properties of the material. A comparative study of vortex-induced vibration (VIV) of FRP composite risers with two designed geometries were conducted and an X80 steel riser was used as the benchmark. The length to diameter ratios of all three risers were set to 100 and their VIV responses under different environmental situations, including the natural frequencies, global displacements, global stresses and the stress distributions in every composite layers, were obtained using computational fluid dynamics (CFD) simulation with coupled fluid–structure interaction. The VIV characteristics of both FRP composite risers and their distinction compared with that of steel risers were analyzed and discussed. From this paper, the dynamic characteristics in different environmental situations of VIV for FRP composite risers can be further understood.

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Three-dimensional stress analysis of orthotropic curved tubes-part 1: Single-layer solution

Cited by 12 publications

References 25 publications

Three-dimensional stress analysis of orthotropic curved tubes-part 2: Laminate solution

Three-dimensional stress analysis of orthotropic curved tubes-part 2: Laminate solution

Effects of lay-up sequence in thick composite tubes for helicopter landing gears

Comparative Study of Vortex-Induced Vibration of FRP Composite Risers with Large Length to Diameter Ratio Under Different Environmental Situations

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