Experimental, numerical and analytical investigation of free vibrational behavior of GFRP-stiffened composite cylindrical shells

Hemmatnezhad, M.; Rahimi, G. H.; Tajik, Mohsen; Pellicano, Francesco

doi:10.1016/j.compstruct.2014.10.011

Cited by 71 publications

(12 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the effect of the elastic rope is quite small and can be ignored. This method has been confirmed to be feasible to simulate the free-free boundary condition [16,23]. An impact hammer, a B&K type accelerometer, a charge amplifier and a LMS-Test-Lab modal analysis system are used to perform the experiments, as shown in Figure 4.…”

Section: Methodsmentioning

confidence: 99%

Free vibration and axial compression of all-metallic cylindrical and truncated conical sandwich shells with corrugated cores

Yang

Han

et al. 2020

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

All-metallic sandwich-walled cylindrical and conical structures for aerospace applications often require simultaneous excellent vibration and load-carrying capacities. In the present study, the free vibration and axial compression behaviors of cylindrical and truncated conical sandwich shells with corrugated cores are investigated using a combined experimental and numerical approach. Excellent agreement between experimental measurements and finite element simulations for representative vibration and axial compression characteristics is achieved. Parametric studies based on the response surface model are subsequently performed to quantify the influence of key geometrical parameters on vibration and axial compression performance. A multi-functional collaborative design to meet the requirement of high load-bearing capacity subjected to the constraint of low natural frequency is also carried out, which demonstrates the unique advantages of the novel sandwich-walled shells for aeronautical and astronautical applications.

show abstract

Section: Methodsmentioning

confidence: 99%

Free vibration and axial compression of all-metallic cylindrical and truncated conical sandwich shells with corrugated cores

Yang

Han

et al. 2020

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

show abstract

“…[66], Lakshmi and Rao [67], and Hemmatnezhad et al. [68]. Recently, the rule of mixture was rejected by Talezadehlari and Rahimi [69].…”

Section: Problem Formulationmentioning

confidence: 99%

New analytical approach for buckling of composite sandwich pipes with iso-grid core under uniform external lateral pressure

Shahgholian‐Ghahfarokhi

Rahimi

2019

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

In this paper, a new analytical approach is developed for buckling of composite sandwich pipes with iso-grid core under uniform external lateral pressure. Firstly, the stiffness contributions of iso-grid cores are evaluated through the new force and moment effect analysis. Then, iso-grid core is transformed into a solid pipe, as the middle layer of the sandwich pipe. The outer, inner, and middle pipes are transformed into an equivalent single-walled pipe. Therefore, composite sandwich pipe with iso-grid core is equalized with a single-walled pipe of the same stiffness. The Rayleigh–Ritz energy method is used to calculate the critical buckling pressure of the composite sandwich pipes with iso-grid cores. The efficiency and accuracy of the presented approach are confirmed by comparing the analytical solutions with finite element results obtained from ABAQUS and other works, showing a good agreement with each other. A parametric study is then carried out to investigate the effect of the scale of the structure, outer and inner pipes ply stacking sequence, radius to total thickness ratio, stiffener to outer and inner pipe thicknesses ratio, and stiffener angle on the buckling of sandwich pipes. Finally, applications of the present approach were demonstrated for designing of tending toward constant various structural applications such as offshore pipelines.

show abstract

“…Fang and Perera [6] studied damage identification technique while Ahmadi et al [7] investigated the advanced treatment of olive oil processing wastewater using Fenton's peroxidation and Zhu and Chen [8] studied the dynamic analysis of machine tool based on unit structure by employing CCD. Of late several studies are carried out concerning different deterministic responses of composite shells [9][10][11][12][13][14][15][16][17][18][19][20], while stochastic analysis of the same are found to be carried out in ref [21,22]. Mehrez et al [23,24] investigated the stochastic material properties of composites by experimental database construction and uncertainty modelling.…”

Section: Introductionmentioning

confidence: 98%

Rotational and ply-level uncertainty in response of composite shallow conical shells

Dey

Mukhopadhyay

Khodaparast

et al. 2015

Composite Structures

View full text Add to dashboard Cite

Rotational and ply-level uncertainty in response of composite shallow conical shells, Composite Structures (2015), doi: http://dx. AbstractThis paper presents the quantification of rotational and ply level uncertainty of random natural frequency for laminated composite conical shells by using surrogate modelling approach. The stochastic eigenvalue problem is solved by using QR iteration algorithm.Sensitivity analysis is carried out to address the influence of different input parameters on the output natural frequencies. The sampling size and computational cost is reduced by employing the present approach compared to direct Monte Carlo simulation. The stochastic mode shapes are also depicted for a typical laminate configuration. Statistical analysis is presented to illustrate the results and its performance.

show abstract

Experimental, numerical and analytical investigation of free vibrational behavior of GFRP-stiffened composite cylindrical shells

Cited by 71 publications

References 61 publications

Free vibration and axial compression of all-metallic cylindrical and truncated conical sandwich shells with corrugated cores

Free vibration and axial compression of all-metallic cylindrical and truncated conical sandwich shells with corrugated cores

New analytical approach for buckling of composite sandwich pipes with iso-grid core under uniform external lateral pressure

Rotational and ply-level uncertainty in response of composite shallow conical shells

Contact Info

Product

Resources

About