Carrera E.

de Miguel A. G.

Kaleel I.

Nagaraj M. H.

Pagani A.

Petrolo M.

English

PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino)

04 August 2020POLITECNICO DI TORINORepository ISTITUZIONALEA component-wise formulation for virtual testing of composites / Kaleel, I.; de Miguel, A. G.; Nagaraj, M. H.; Pagani, A.;Petrolo, M.; Carrera, E.. - ELETTRONICO. - (2018). ((Intervento presentato al convegno First International Conferenceon Mechanics of Advanced Materials and Structures (ICMAMS) tenutosi a Torino nel 17-20 June 2018.OriginalA component-wise formulation for virtual testing of compositesPublisher:PublishedDOI:10.5281/zenodo.1308076Terms of use:openAccessPublisher copyright(Article begins on next page)This article is made available under terms and conditions as specified in the  corresponding bibliographic description inthe repositoryAvailability:This version is available at: 11583/2710637 since: 2018-07-10T08:42:08ZErasmo Carrera, JN ReddyICMAMS 2018First International Conference on Mechanics of Advanced Materials and StructuresTurin, 17-20 June 2018www.icmams.comA component-wise formulation for virtual testing of compositesI. Kaleel1, A.G. de Miguel1, M.H. Nagaraj1, A. Pagani1,*, M. Petrolo1, and E. Carrera11 Mul2 Group, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Italy* Corresponding author: marco.petrolo@polito.itThis research work presents a computationally efficient and accurate platform forvirtual testing of composites. The present model is based on a class of refined one-dimensional (1D) theories referred to as the Carrera Unified Formulation (CUF), a gen-eralized hierarchical formulation that yields refined structural theories through a variablekinematic description [1]. 1D CUF models can provide accurate 3D-like stress fields ata reduced computational cost, e.g., approximately one to two orders of magnitude of de-grees of freedom less as compared to standard 3D brick elements. The virtual testingplatform consists of a variety of computational tools such as failure index evaluations us-ing component-wise modeling approaches (CUF-CW), CUF-CW micromechanics, CUF2multiscale framework, and interface modeling. The Component-Wise approach (CW)is utilized to represent various components of the RVE in the CUF-CW micromechan-ics module [2]. The crack band theory is implemented to capture the damage propaga-tion within the constituents of composite materials and the pre-peak nonlinearity withinthe matrix constituents is modeled using the J2 von-Mises theory. A novel multiscaleframework, CUF2, is developed for nonlinear analysis of fiber-reinforced composites.The two-scale framework consists of a macro-scale model to describe the structural levelcomponents, e.g, open-hole specimens, coupons, using CUF-LW models and a sub-scalemicro-structural model encompassed with a representative volume element (RVE). Thetwo scales are interfaced through the exchange of strain, stress and stiffness tensors atevery integration point in the macro-scale model. Explicit finite element computationsat lower scale are efficiently handled by the CUF-CW micromechanics tool. A novelhigher-order interface modeling approach is utilized to model delamination. The toolsmentioned above are employed to obtain accurate material response across various scalesof composite modeling. The efficiency of the proposed computational platform is assessedvia comparison against the traditional approaches found in the literature.References[1] Carrera E., Cinefra M., Petrolo M. and Zappino E., Finite Element Analysis of Structuresthrough Unified Formulation, John Wiley and Sons, Ltd, 2014.[2] Kaleel I., Petrolo M., Waas A.M., Carrera E., ”Micromechanical Progressive Failure Analysisof Fiber-Reinforced Composite Using Refined Beam Models”, Journal of Applied Mechanics(2018), 85.

A component-wise formulation for virtual testing of composites

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A component-wise formulation for virtual testing of composites

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