An inverse method for characterisation of the static elastic Hooke’s tensors of solid frame of anisotropic open-cell materials

Mao, Huina; Rumpler, Romain; Göransson, Peter

doi:10.1016/j.ijengsci.2019.103198

Cited by 14 publications

(10 citation statements)

References 26 publications

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“…It was determined that due to the versatility of the module it is possible to make future adaptations in the axis and thus to implement different machining tools for different processes (cutting, drilling, milling, and 3D printing), it was also observed that the displacement and the deformation generated are directly proportional to the applied external force (i.e, Hooke's law of elasticity [19]), and inversely proportional to the magnitude of the physical properties of the material, whereby the safety factor depends on the magnitude of the force exerted on them, their fastenings, their geometrical shape and the mechanical properties of the material.…”

Section: Discussionmentioning

confidence: 99%

Design and simulation of a mechanical system for the machining of parts and printing in 3D (x, y, z)

Miranda-Molina¹,

Quinayas-Ortiz²,

Peña-Rodríguez³

2020

revuin

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The design and simulation of a multifunctional system for the machining of mechanical parts and printing in 3D (x, y, z) using CAD software Solid works, was used to determine the static behavior of the system with the analysis of tension, deformation, displacement, safety factor, buckling, fatigue and frequency. For the above, it was determined that the lateral base supports a tension of 3.5x108Pa, causing a displacement of 25 mm and an equivalent unit strain (ESTRN) of 0.0012. And the base guiding a cumulative damage of 300% of deterioration that reduces its useful life to a range between 1x106and 1x1065utility cycles and a safety factor (F S) between 104.632 to 7869.86. On the other hand, the transverse base has a maximum cumulative damage percentage of4.10535 and a life cycle range ranging from 24358.5 to 1x106with a minimum SF of 5974

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Section: Discussionmentioning

confidence: 99%

Design and simulation of a mechanical system for the machining of parts and printing in 3D (x, y, z)

Miranda-Molina¹,

Quinayas-Ortiz²,

Peña-Rodríguez³

2020

revuin

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“…An inverse estimation methodology for the different moduli in the static Hooke's matrix H of open-cell materials was developed by the authors in [14]. The data used for the approach consists of displacements of target Kelvin model and displacements of predicted solid homogeneous model, see Fig.…”

Section: Methods and Structure Introductionmentioning

confidence: 99%

“…Inverse estimation is a widely used method for the characterisation of elastic material properties of porous materials [7,9,[11][12][13]. In recent works by the authors in [14], related to the characterisation of porous elastic foams, an inverse method was proposed, and the accuracy was numerically verified.…”

Section: Introductionmentioning

confidence: 99%

“…The paper is organised as follows. First, the method in paper [14] is adapted for its application to acoustic porous materials and the microstructures are simplified by open-cell Kelvin cells. The method is then applied to the characterisation of isotropic and anisotropic artificial porous foams and the results are presented and discussed with respect to previous works.…”

Section: Introductionmentioning

confidence: 99%

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An inverse method for design and characterisation of acoustic materials

2019

Self Cite

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This paper presents applications of an inverse method for the design and characterisation of anisotropic elastic material properties of acoustic porous materials. Full field 3D displacements under static surface loads are used as targets in the inverse estimation to fit a material model of an equivalent solid to the measurement data. Test cases of artificial open-cell foams are used, and the accuracy of the results are verified. The method is shown to be able to successfully characterise both isotropic and anisotropic elastic material properties. The paper demonstrates a way to reduce costs by characterising material properties based on the design model without a need for manufacturing and additional experimental tests.

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“…Techniques used in clinical practice include magnetic resonance imaging, ultrasonography, and computed tomography. In addition, three-dimensional imaging is useful in the development of computational models for further prediction of material parameters using the inverse approach [30]. There have been many studies relating to 3D imaging techniques.…”

Section: Introductionmentioning

confidence: 99%

A 3D Scanning System for Inverse Analysis of Moist Biological Samples: Design and Validation Using Tendon Fascicle Bundles

Dąbrowska

Ekiert

Wójcik

et al. 2020

Sensors

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In this article, we present the design and validation of a non-contact scanning system for the development of a three-dimensional (3D) model of moist biological samples. Due to the irregular shapes and low stiffness of soft tissue samples, the use of a non-contact, reliable geometry scanning system with good accuracy and repeatability is required. We propose a reliable 3D scanning system consisting of a blue light profile sensor, stationary and rotating frames with stepper motors, gears and a five-phase stepping motor unit, single-axis robot, control system, and replaceable sample grips, which once mounted onto the sample, are used for both scanning and mechanical tests. The proposed system was validated by comparison of the cross-sectional areas calculated based on 3D models, digital caliper, and vision-based methods. Validation was done on regularly-shaped samples, a wooden twig, as well as tendon fascicle bundles. The 3D profiles were used for the development of the 3D computational model of the sample, including surface concavities. Our system allowed for 3D model development of samples with a relative error of less than 1.2% and high repeatability in approximately three minutes. This was crucial for the extraction of the mechanical properties and subsequent inverse analysis, enabling the calibration of complex material models.

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An inverse method for characterisation of the static elastic Hooke’s tensors of solid frame of anisotropic open-cell materials

Cited by 14 publications

References 26 publications

Design and simulation of a mechanical system for the machining of parts and printing in 3D (x, y, z)

Design and simulation of a mechanical system for the machining of parts and printing in 3D (x, y, z)

An inverse method for design and characterisation of acoustic materials

A 3D Scanning System for Inverse Analysis of Moist Biological Samples: Design and Validation Using Tendon Fascicle Bundles

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