Identification of material properties of composite plate specimens

Soares, Cristóvão M. Mota; Freitas, M.; Araújo, Aurélio L.; Pedersen, Pauli

doi:10.1016/0263-8223(93)90174-o

Cited by 136 publications

(45 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This work is a generalisation of the work presented by Mota Soares and coworkers (see e.g., [1,2]) using the Mindlin plate theory along with a ®nite element model, and Araujo et al [3] using a higher-order displacement ®nite element model. It has the innovative aspect of contemplating identi®cation of mechanical parameters of specimens having layers made up of several materials and general stacking sequences.…”

Section: Introductionmentioning

confidence: 65%

Combined numerical–experimental model for the identification of mechanical properties of laminated structures

Araújo

Soares²,

Freitas³

et al. 2000

Composite Structures

Self Cite

View full text Add to dashboard Cite

A combined numerical±experimental method for the identi®cation of six elastic material modulus of generally thick composite plates is proposed in this paper. This technique can be used in composite plates made of di erent materials and with general stacking sequences. It makes use of experimental plate response data, corresponding numerical predictions and optimisation techniques. The plate response is a set of natural frequencies of¯exural vibration. The numerical model is based on the ®nite element method using a higher-order displacement ®eld. The model is applied to the identi®cation of the elastic modulus of the plate specimen through optimisation techniques, using analytical sensitivities. The validity, e ciency and potentiality of the proposed technique is discussed through test cases. Ó

show abstract

Section: Introductionmentioning

confidence: 65%

Combined numerical–experimental model for the identification of mechanical properties of laminated structures

Araújo

Soares²,

Freitas³

et al. 2000

Composite Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…Soares et al identified elastic properties of laminated composites by using experimental eigenfrequencies. The stiffness parameters were identified from the measured natural frequencies of the laminated composites plate by direct minimization of the identification function [21]. A similar method was used by Frederiksen and Araújo.…”

Section: Introductionmentioning

confidence: 99%

A Numerical-Experimental Method for Drop Impact Analysis of Composite Landing Gear

Guan

Xue

et al. 2017

Shock and Vibration

View full text Add to dashboard Cite

The special material performance, manufacturing process, machining behavior, and operating condition of composite materials cause uncertainties to inevitably appear in the mechanical properties of composite structures. Therefore, variability in mechanical properties must be considered in a mechanical response analysis of composite structures. A method is proposed in this paper to predict the dynamic performance of composite landing gear with uncertainties using experimental modal analysis data and nonlinear static test data. In this method, the nonlinear dynamic model of the composite landing gear is divided into two parts, the linear and the nonlinear parts. An experimental modal analysis is employed to predict the linear parameters with a frequency response function, and the nonlinear parameters caused by large deflection are identified by a nonlinear static test with the nonlinear least squares method. To check the accuracy and practicability of the method, it is applied to drop impact simulations and tests of composite landing gear. The results of the simulations are in good agreement with the test results, which shows that the proposed method is perfectly suited for the dynamic analysis of composite landing gear.

show abstract

“…There is a great deal of information in the literature on the identification of the elastic constants of laminated plates employing vibration test data [2]. The problem associated with vibration testing is converting the measured modal frequencies to elastic constants.…”

Section: Introductionmentioning

confidence: 99%

“…This gap should be minimized, taking into account the side constraints on the design variables (elastic constants). The minimization problem is solved by using non-linear mathematical programming techniques and sensitivity analysis [2,3]. A similar identification functional has been employed in [4], but the minimization method was different.…”

Section: Introductionmentioning

confidence: 99%

Non-Destructive Technique for Determination of Elastic Material Properties

Akishin¹,

Kovaļovs²,

Barkanov³

2013

Construction Science

View full text Add to dashboard Cite

Abstract. An inverse technique, based on the planning of experiments and response surface methodology have been applied to determine elastic properties of unidirectional carbon fiber composite plate and carbon nanotubes reinforced aluminium plate.The nuances of application of investigated technique for orthotropic material properties determination are considered on the example of a composite plate. In turn, possibility of using of this technique on specimens with small dimensions (80x60x2 mm) is checked up and estimated on an example of an isotropic nanocomposite plate.The results obtained were verified by comparing the experimentally measured eigenfrequencies with numerical ones obtained by FEM using determinated elastic material properties.

show abstract

Identification of material properties of composite plate specimens

Cited by 136 publications

References 3 publications

Combined numerical–experimental model for the identification of mechanical properties of laminated structures

Combined numerical–experimental model for the identification of mechanical properties of laminated structures

A Numerical-Experimental Method for Drop Impact Analysis of Composite Landing Gear

Non-Destructive Technique for Determination of Elastic Material Properties

Contact Info

Product

Resources

About