Showing papers in "Journal of Strain Analysis for Engineering Design in 2021"
24 citations
TL;DR: In this paper, an in situ torsion test in a 3D printed pantograph was carried out to analyze the properties of metamaterials for their peculiar mechanical properties.
Abstract: Metamaterials are often studied for their peculiar mechanical properties. However, few 4D studies were conducted on 3D printed pantographs. This study aims at analyzing an in situ torsion test in a...
19 citations
TL;DR: In this paper, the modeling and free vibration characteristics of a spinning graphene nanoplatelet (GPL) reinforced porous nanocomposite blade were investigated, and the free vibration properties of the blade were analyzed.
Abstract: This paper investigated the modeling and free vibration characteristics of a spinning graphene nanoplatelet (GPL) reinforced porous nanocomposite blade. The blade is made of porous foam metal matri...
17 citations
TL;DR: In this paper, a new theoretical model for rotating elastic hub-blade assemblies, made of functionally graded (FG) graphene nanoplatelet reinforced nanocomposites, and their free vibrati...
Abstract: This paper presents a new theoretical model for rotating elastic hub-blade assemblies, made of functionally graded (FG) graphene nanoplatelet (GPL) reinforced nanocomposites, and their free vibrati...
12 citations
TL;DR: In this article, the static and free vibration analysis of functionally graded carbon nano-tubes reinforced (FG-CNTR) sandwich plates are studied in the framework of inverse hyperbolic shear.
Abstract: In the present study, the static and free vibration analysis of functionally graded carbon nano-tubes reinforced (FG-CNTR) sandwich plates are studied in the framework of inverse hyperbolic shear d...
11 citations
TL;DR: The auxetic structures are structures with negative Poisson ratio that behave under tension or compression as opposed to ordinary materials as discussed by the authors, and they have unique mechanical properties, such as increas...
Abstract: The auxetic structures are structures with negative Poisson ratio that behave under tension or compression as opposed to ordinary materials. Due to the unique mechanical properties, such as increas...
10 citations
TL;DR: In this paper, the authors combine thermography and digital image correlation (DIC) measurements to experimentally capture the fatigue damage phenomenon in steels, with a methodology allowing to rapidly evaluate the effect of fatigue damage on steels.
Abstract: Combining thermography and Digital Image Correlation (DIC) measurements, this paper aims to experimentally capture the fatigue damage phenomenon in steels, with a methodology allowing to rapidly es...
9 citations
TL;DR: In this paper, the authors derive the analytical solution for flexural behavior of general symmetric and anti-symmetric cross-ply laminated composite and sandwich plates subjected to transverse mec...
Abstract: This article is devoted to derive the analytical solution for flexural behavior of general symmetric and anti-symmetric cross-ply laminated composite and sandwich plates subjected to transverse mec...
9 citations
TL;DR: Small specimen mechanical testing is an exciting and rapidly developing field in which fundamental deformation behaviours can be observed from experiments performed on comparatively small amounts of data as discussed by the authors, which can be found in this paper.
Abstract: Small specimen mechanical testing is an exciting and rapidly developing field in which fundamental deformation behaviours can be observed from experiments performed on comparatively small amounts o...
8 citations
TL;DR: In this paper, the authors describe how fiber-reinforced polymer-based composites may experience various strain rates under different dynamic loads and how the mechanical behavior of these composites varies with strain rate.
Abstract: Fiber-reinforced polymer-based composites may experience various strain rates under different dynamic loads. As the mechanical behavior of these composites varies with strain rate, their response w...
8 citations
TL;DR: In this paper, the casting procedure of self-compacting concrete for its excellent workability under its own dead weight is described, and the material can be applied to construction projects.
Abstract: As no extra vibration is needed in the casting procedure of self-compacting concrete for its excellent workability under its own dead weight, the material can be applied to construction projects wh...
TL;DR: In this paper, the effect of loading rate on fracture behavior of dam concrete was studied in the case of full-grained dams with different loading rates (0.1, 0.01, and 0.001 mm/s).
Abstract: In order to study the effect of loading rate on fracture behavior of dam concrete, wedge splitting tests of various loading rates (0.1, 0.01, and 0.001 mm/s) are carried out on two kinds of full-gr...
TL;DR: In this paper, the authors present a new understanding on the deformation mechanics involved in the Nakajima test, which is commonly used to determine the forming limit curve of sheet metals.
Abstract: This work presents a new understanding on the deformation mechanics involved in the Nakajima test, which is commonly used to determine the forming limit curve of sheet metals, and is focused on the...
TL;DR: In this paper, the thermoplastic and thermoset laminates reinforced with different fibers generate variations in the laminated composite mechanical behavior, and the authors aim to analyze the effect of these variations on the performance of the composite.
Abstract: The thermoplastic and thermoset laminates reinforced with different fibers generate variations in the laminated composite mechanical behavior. This work aims to analyze thermoplastic and thermoset ...
TL;DR: Numerical and experimental modal analysis were used to identify the first five eigenfrequencies of the segmented wind turbine blade and an iterative method was developed based on the Craig–Bampton substructure approach to update the numerical model parameters.
Abstract: During the development of the wind turbine system, blades are considered as the most critical components. The blades’ dynamic characteristics must be investigated during the design process to impro...
TL;DR: Strain analysis is an essential step in sheet forming applications to understand the deformation behaviour of the material as discussed by the authors, and strain analysis is conventionally performed by Circle Grid Analysis (CGA).
Abstract: Strain analysis is an essential step in sheet forming applications to understand the deformation behaviour of the material. The strain analysis is conventionally performed by Circle Grid Analysis (...
TL;DR: It is shown that the recourse to photo-realistic rendering software provides the needed tools to perform this experiment design optimization and assess the feasibility of image acquisition and estimating a priori uncertainties on multi-view correlation.
Abstract: In order to characterize the mechanical behavior of a reinforced concrete beam–column joint, an experiment is designed whereby different histories of increasing cyclic loads are applied, and the st...
TL;DR: In this article, a detailed natural frequency analysis of functionally graded porous beams integrated with transverse (d31) and shear (d15) piezoelectric layers under short circui...
Abstract: This investigation aims to perform a detailed natural frequency analysis of functionally graded porous beams integrated with transverse (d31) and shear (d15) piezoelectric layers under short circui...
TL;DR: A quantitative validation methodology is applied to a 1’m × 1 m panel from an aircraft fuselage subject to compression and torsion, in order to evaluate the predicted response of the panel.
Abstract: The increased use of optical measurement techniques in industrial environments has the potential to increase knowledge and creates an opportunity for a more comprehensive validation of computationa...
TL;DR: The small punch test initially used mainly in the nuclear sector proved to be an efficient method of estimating the mechanical properties of materials, including fracture toughness as mentioned in this paper, and was used in many applications.
Abstract: The small punch test initially used mainly in the nuclear sector proved to be an efficient method of estimating the mechanical properties of materials, including fracture toughness. In general, the...
TL;DR: In this article, the nonlinear vibration analysis of functionally graded carbon nanotubes and fiber-reinforced composite truncated conical shell segments based upon third-order shear deformations was performed.
Abstract: This research deals with the nonlinear vibration analysis of functionally graded carbon nanotubes and fiber-reinforced composite truncated conical shell segments based upon third-order shear deform...
TL;DR: A numerical simulation analysis of existing methods for estimating strain from Bragg-edges shows that the most accurate estimates of strain are provided by a method that provides inaccurate estimates of certainty.
Abstract: Energy resolved neutron transmission techniques can provide high-resolution images of strain within polycrystalline samples allowing the study of residual strain and stress in engineered components...
TL;DR: In underground engineering, such as mining engineering and deep tunnel engineering, the rock is often loaded and unloaded repeatedly as discussed by the authors, and the strength of rock under cyclic load is lower than that under...
Abstract: In underground engineering, such as mining engineering and deep tunnel engineering, the rock is often loaded and unloaded repeatedly. The strength of rock under cyclic load is lower than that under...
TL;DR: In this article, a comparison between the finite element analysis and the strain gauges measurements showed an overall percentage difference between the range of 10% and 26% for all the specimen configurations with a maximum percentage difference recorded for the longitudinal angle-ply case of approximately 9%.
Abstract: The application of strain gauges as recommended by the ASTM standards provides accurate strain measurements in isotropic materials. However, their use in composite materials becomes more challenging due to their anisotropic nature. In this study, we hypothesized that the use of the distributed sensing system and the three-dimensional digital image correlation, which can average strain along a line and surface, respectively, may account for strain variability in composite materials. This study shows an investigation on the mechanical properties of unidirectional, cross-ply, and angle-ply carbon-epoxy specimens using strain gauges, distributed sensing system, and digital image correlation. The Bhattacharyya distance method was used to provide a preliminary evaluation of the closeness of the three different measurement techniques while the B-basis statistical method was used to analyze the experimental data in order to obtain a more conservative and reliable material parameter compared to the conventional averaged value, recommended by ASTM standards. Finally, a finite element model was created in Ansys Workbench™ as a means of evaluating the implication of a single point strain gauges measurement, versus a line or a surface strain measurement. The finite element analysis investigation was performed at a laminae level using the measured experimental elastic modulus and at a lamina–lamina level in which the elastic modulus of the unidirectional case was used as input in all the laminate configurations. The former analysis showed good agreement between the finite element analysis and all the strain measurement systems with an averaged percentage difference below 5%. The latter analysis showed a higher discrepancy in the measured percentage difference. A comparison between the finite element analysis and the strain gauges measurements showed an overall percentage difference between the range of 10% and 26%. Distributed sensing system and three-dimensional digital image correlation measurements provided an overall percentage difference below 10% for all the specimen configurations with a maximum percentage difference recorded for the longitudinal angle-ply case of approximately 9%.
TL;DR: In this article, a hollow pump body made from aluminium alloy 2014A forgings have been solution heat treated and quenched into either cold water or polyalkylene glycol (PAG) solutions.
Abstract: Generic hollow pump bodies made from aluminium alloy 2014A forgings have been solution heat treated and quenched into either cold water or polyalkylene glycol (PAG) solutions. An industry standard ...
TL;DR: In this paper, a strain pattern-based method was proposed to simultaneously determine the uniaxial tensile residual stress and flow property from a single-cycle spherical indentation test.
Abstract: In this study, a strain-pattern-based method was proposed to simultaneously determine the uniaxial tensile residual stress and flow property from a single-cycle spherical indentation test. The vari...
TL;DR: The accuracy of strategies combining heterogeneous mechanical tests and full-field strain measurement techniques is dependent on many factors as mentioned in this paper, such as the number of heterogeneous test cases, the size of the test set, and the type of test set used.
Abstract: The accuracy of strategies combining heterogeneous mechanical tests and full-field strain measurement techniques is dependent on many factors. Recently, many heterogeneous mechanical tests with dif...
Abstract: The intense applied thermal gradients during the welding process leads to the variation in the properties of the weld zone and its surrounding areas. In this regard, determining the local mechanica...
TL;DR: In this article, the authors studied the mechanical properties and micromachines of ultrafine grained and nanostructured materials and found that they have unusual mechanical behavior.
Abstract: Ultrafine grained and nanostructured materials have drawn significant attention due to their unusual mechanical behavior. The purpose of this research was to study the mechanical properties and mic...
TL;DR: In this paper, the coupled surface effects of thermal Casimir force and squeeze film damping (SFD) on size-dependent electromechanical stability and bifurcation of torsion micromirror actuators were demonstrated.
Abstract: This paper demonstrated the coupled surface effects of thermal Casimir force and squeeze film damping (SFD) on size-dependent electromechanical stability and bifurcation of torsion micromirror actu...