Advanced User-Interaction with GUIs in MatLAB®

Franciosa, Pasquale; Gerbino, Salvatore; Patalano, Stanislao

doi:10.5772/21043

Cited by 2 publications

(3 citation statements)

References 11 publications

(11 reference statements)

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“…The 12x12 stiffness matrix is obtained using the same expression stated into Eq (12). Here a 2x2 Gauss rule was (20) and…”

Section: Quad+ Element: Bending and Shear Componentmentioning

confidence: 99%

“…Therefore, it is paramount that the simulation model of compliant sheet metal assembly must have the capability of integrating FEM modelling with other aspects of assembly modelling such as stochastic variation, machine learning, curve-fitting, optimisation etc. In this context, Matlab is an effective tool to develop powerful FEM simulation routines based on FEM by using its high level programming language and its capabilities to model other advance engineering techniques, and to combine them with each other [20].…”

Section: Introductionmentioning

confidence: 99%

“…Please cite as:[Franciosa P., Palit A., Gerbino S., Ceglarek D., A Novel Hybrid Shell Element Formulation (QUAD+ and TRIA+): A Benchmarking and Comparative Study, Finite Elements in Analysis and Design, Volume 166, 15 November 2019, 103319]employed. Moreover, the bending part can be inherited from Eq(13) and re-written as in Eq(20), whereas the shear components[12] can be expressed by Eq(21).…”

mentioning

confidence: 99%

See 2 more Smart Citations

A novel hybrid shell element formulation (QUAD+ and TRIA+): A benchmarking and comparative study

Franciosa

Palit

Gerbino

et al. 2019

Finite Elements in Analysis and Design

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This paper introduces a novel hybrid finite element (FE) formulation of shell element to enable assembly process simulation of compliant sheet-metal parts with higher efficiency and flexibility. Efficiency was achieved by developing both new hybrid quadrilateral and triangular elements. Quadrilateral element (QUAD+) was formulated by combining area geometric quadrilateral 6 (AGQ6) nodes and mixed interpolated tensorial components (MITC) to model membrane and bending/shear component respectively. Triangular element (TRIA+) was formulated by merging assumed natural deviatoric strain (ANDES) for membrane and MITC for bending/ shear component. Flexibility was addressed by developing an open-source C++ code, enhanced by the OpenMP interface for multiprocessing programming. Tests and benchmarks were compiled and executed within Matlab using the MEX API interface. Extensive benchmark studies were accomplished to evaluate the performance of the proposed hybrid formulation and the shell formulations used in three FEM packages-ABAQUS, ANSYS and COMSOL-under static linear elastic condition with small strain assumption. It was observed that the proposed QUAD+ and TRIA+ elements performed better amongst the FE packages, especially when there was in-plane mesh distortion, with errors below 3%. It was also identified that the best efficiency is obtained by adopting dominant QUAD+ elements compared to the TRIA+ when working on complex geometries. This paper also contributes to present a wide set of benchmark studies required to verify new release of FE packages using shell element or evaluate the performance of new shell formulations.

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“…The 12x12 stiffness matrix is obtained using the same expression stated into Eq (12). Here a 2x2 Gauss rule was (20) and…”

Section: Quad+ Element: Bending and Shear Componentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

A novel hybrid shell element formulation (QUAD+ and TRIA+): A benchmarking and comparative study

Franciosa

Palit

Gerbino

et al. 2019

Finite Elements in Analysis and Design

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show abstract

A computer-aided tool to quickly analyse variabilities in flexible assemblies in different design scenarios

Franciosa

Gerbino

Patalano

2013

IJPD

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In automotive and aeronautic fields, controlling the final shape of flexible assemblies (with sheet metal parts) is a key issue. Even assuming as known the shape errors in single manufactured parts, the assembly process can cause wide variability due to their flexibility and to the choice of fixtures and clamps as well as to the fastening technique adopted. Here it is strategic to analyse different assembly configurations at the beginning of the design phase and chose the one that assures less variability on the key characteristics to be achieved. This paper presents a FEM-based computer tool able to statistically analyse variations occurring in assembly processes of flexible parts. After assigning fixtures, clamping points, fastening joints and assembly sequence, the tool quickly outputs the statistical variability of the key characteristics. It is so possible to span a variety of design solutions predicting failures and controlling final variations. A case study will show how it works

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Advanced User-Interaction with GUIs in MatLAB®

Cited by 2 publications

References 11 publications

A novel hybrid shell element formulation (QUAD+ and TRIA+): A benchmarking and comparative study

A novel hybrid shell element formulation (QUAD+ and TRIA+): A benchmarking and comparative study

A computer-aided tool to quickly analyse variabilities in flexible assemblies in different design scenarios

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