Experimental and theoretical analysis of the stress–strain state of anisotropic multilayer composite panels for wind turbine blade

Bitkina, Olga; Kang, Ki-Weon; Lee, Jang‐Ho

doi:10.1016/j.renene.2014.11.004

Cited by 12 publications

(28 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The parameters for the curing, manufacturing, and measuring processes are shown and fully elaborated on in the reference [7]. A verification of the theoretical and experimental results of the deformation (plate hogging) shows that the results match well with one another in the limits from -7.4% to 15.7% with 0% difference in several cases [7]. Thus, this confirms that the developed analytical method can be used for analyzing the stress-strain state of composite structures.…”

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 55%

“…Equations of hogging, longitudinal, and tangential displacements are calculated by integrating the corresponding deformation components, as for the case of free panel edges: (6) The sequence of the calculation, which takes thermal stresses into account, was given in the paper [7]. The developed analytical method was verified with an experimental study [7], which included the manufacturing of composite plates under the curing process, the subsequent cooling, and then measuring the plate deformations that were obtained in the manufacturing process due to the distinction between the matrix and fiber properties at different manufacturing temperatures (curing state → cooled state).…”

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

“…The developed analytical method was verified with an experimental study [7], which included the manufacturing of composite plates under the curing process, the subsequent cooling, and then measuring the plate deformations that were obtained in the manufacturing process due to the distinction between the matrix and fiber properties at different manufacturing temperatures (curing state → cooled state). The parameters for the curing, manufacturing, and measuring processes are shown and fully elaborated on in the reference [7]. A verification of the theoretical and experimental results of the deformation (plate hogging) shows that the results match well with one another in the limits from -7.4% to 15.7% with 0% difference in several cases [7].…”

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

“…A calculation model was selected for analysis: a composite panel (500 mm × 500 mm) [7,8] was manufactured using a curing temperature of 170°C from carbon composite KMU-4l, which is based on the LU-P carbon fiber and ENFB epoxy matrix. After curing, the panel was cooled at room-temperature to 23°C.…”

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

“…After curing, the panel was cooled at room-temperature to 23°C. The properties of the composite materials and the characteristics of the manufacturing process were used as they are given in the reference [7]. The longitudinal and transverse panel edges of the plate were hinge-supported.…”

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

See 4 more Smart Citations

Disorientation angle influence on the thermal residual stresses in carbon multilayered composite plates of different thicknesses

Bitkina¹,

Kang²,

Lee³

2017

Carbon letters

Self Cite

View full text Add to dashboard Cite

One of the most acute problems in studying composite stress-strain states is determining the initial residual stresses during the design of layered construction elements. The full stress-strain state of composite constructions consists of the initial (generated during the manufacturing process) and operating (generated during the working period) stages. A thorough investigation of the initial stage of the stress-strain state is very important to finding the total stresses and deformations, and determining the correct destruction time of composite structures, and preventing their destruction. Otherwise, if the initial stresses and deformations are not taken into account, the structures may be destroyed long before their expected service life.Structural factors and conditions, such as the thickness, layup and technological errors, need to be analyzed to solve the initial stress-strain state relevant problem. Among them, one of the technological errors is the disorientation angle, which is expressed as a deviation of the composite layers from the initially given laying directory. Of particular interest is the influence of design factors on the face composite layers and the layers near them since those layers are strongly influenced by different loads and may be destroyed prematurely.The disorientation angle of the face layers was investigated from this perspective. This paper takes into account the disorientation angle, structure types, and thickness, and using this information, we aim to provide more information about predicting composite destruction, by finding the residual thermal stress values for the whole composite construction.Previous researches [1-6] have explained the influence of different conditions on the stress-strain state of composite structures. Wong [1] studied the thermal stresses in the discrete joints of sandwiched structures by employing a two-step solution for modeling the stresses in the discrete joints of a sandwiched structure resulting from mismatched thermal expansion. Furthermore, Shokrieh et al. [2] studied the effects of multi-walled carbon nanotubes on the thermal residual stresses in polymeric fibrous composites. Węglewski et al. [3] presented the results of experimental measurements and numerical modeling of the effect of particle size on the residual thermal stresses arising in sintered metal-matrix composites after cooling down from the fabrication temperature. Additionally, Ondurucu and Topcu [4] carried out a thermal elastic-plastic stress analysis for thermoplastic laminated plates. The elastic-plastic solution for small plastic deformations, and the residual stress distributions along the thickness of the plates were obtained. Liu and Sun [5] analytically researched the effect of thermal residual stresses on the elastoplastic behavior of the composites. Moreover, Kim et al. [6] investigated the curing process for carbon/epoxy composites to reduce thermal residual stress by the cure monitoring system, using dielectrometry and fiber Bragg grating sensors simultaneously.By re...

show abstract

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 55%

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

Section: Disorientation Angle Influence On the Thermal Residual Stresmentioning

confidence: 99%

See 3 more Smart Citations

Disorientation angle influence on the thermal residual stresses in carbon multilayered composite plates of different thicknesses

Bitkina¹,

Kang²,

Lee³

2017

Carbon letters

Self Cite

View full text Add to dashboard Cite

show abstract

Condition Monitoring, and Fault Detection and Diagnostics of Wind Energy Conversion System (WECS)

Mahto

Malik²,

Mukherjee

2020

Advances in Intelligent Systems and Computing

View full text Add to dashboard Cite

Effect of fiber tension on the deformation of a carbon composite plate for space radio telescopes

Bitkina

Lee

Darlington

2015

Aerospace Science and Technology

Self Cite

View full text Add to dashboard Cite

Experimental and theoretical analysis of the stress–strain state of anisotropic multilayer composite panels for wind turbine blade

Cited by 12 publications

References 2 publications

Disorientation angle influence on the thermal residual stresses in carbon multilayered composite plates of different thicknesses

Disorientation angle influence on the thermal residual stresses in carbon multilayered composite plates of different thicknesses

Condition Monitoring, and Fault Detection and Diagnostics of Wind Energy Conversion System (WECS)

Effect of fiber tension on the deformation of a carbon composite plate for space radio telescopes

Contact Info

Product

Resources

About