Scipedia: Documents published in 2021

A Parallel Dynamic Asynchronous Framework for Uncertainty Quantification by Hierarchical Monte Carlo Algorithms

Riccardo Tosi — Tue, 14 Sep 2021 08:49:02 +0200

The necessity of dealing with uncertainties is growing in many different fields of science and engineering. Due to the constant development of computational capabilities, current solvers must satisfy both statistical accuracy and computational efficiency. The aim of this work is to introduce an asynchronous framework for Monte Carlo and Multilevel Monte Carlo methods to achieve such a result. The proposed approach presents the same reliability of state of the art techniques, and aims at improving the computational efficiency by adding a new level of parallelism with respect to existing algorithms: between batches, where each batch owns its hierarchy and is independent from the others. Two different numerical problems are considered and solved in a supercomputer to show the behavior of the proposed approach.

Data-Driven Virtual Replication of Thermostatically Controlled Domestic Heating Systems

Gerard Mor Martinez — Mon, 13 Sep 2021 17:56:02 +0200

Thermostatic load control systems are widespread in many countries. Since they provide heat for domestic hot water and space heating on a massive scale in the residential sector, the assessment of their energy performance and the effect of different control strategies requires simplified modeling techniques demanding a small number of inputs and low computational resources. Data-driven techniques are envisaged as one of the best options to meet these constraints. This paper presents a novel methodology consisting of the combination of an optimization algorithm, two auto-regressive models and a control loop algorithm able to virtually replicate the control of thermostatically driven systems. This combined strategy includes all the thermostatically controlled modes governed by the set point temperature and enables automatic assessment of the energy consumption impact of multiple scenarios. The required inputs are limited to available historical readings from smart thermostats and external climate data sources. The methodology has been trained and validated with data sets coming from a selection of 11 smart thermostats, connected to gas boilers, placed in several households located in north-eastern Spain. Important conclusions of the research are that these techniques can estimate the temperature decay of households when the space heating is off as well as the energy consumption needed to reach the comfort conditions. The results of the research also show that estimated median energy savings of 18.1% and 36.5% can be achieved if the usual set point temperature schedule is lowered by 1○C and 2○C, respectively.

A data-driven method for unsupervised electricity consumption characterisation at the district level and beyond

Gerard Mor Martinez — Mon, 13 Sep 2021 17:13:03 +0200

A bottom-up electricity characterisation methodology of the building stock at the local level is presented. It is based on the statistical learning analysis of aggregated energy consumption data, weather data, cadastre, and socioeconomic information. To demonstrate the validity of this methodology, the characterisation of the electricity consumption of the whole province of Lleida, located in northeast Spain, is implemented and tested. The geographical aggregation level considered is the postal code since it is the highest data resolution available through the open data sources used in the research work. The development and the experimental tests are supported by a web application environment formed by interactive user interfaces specifically developed for this purpose. The paper’s novelty relies on the application of statistical data methods able to infer the main energy performance characteristics of a large number of urban districts without prior knowledge of their building characteristics and with the use of solely measured data coming from smart meters, cadastre databases and weather forecasting services. A data-driven technique disaggregates electricity consumption in multiple uses (space heating, cooling, holidays and baseload). In addition, multiple Key Performance Indicators (KPIs) are derived from this disaggregated energy uses to obtain the energy characterisation of the buildings within a specific area. The potential reuse of this methodology allows for a better understanding of the drivers of electricity use, with multiple applications for the public and private sector.

Data-driven method for unsupervised electricity consumption characterisation at district level and beyond

Gerard Mor Martinez — Mon, 13 Sep 2021 17:08:02 +0200

Enhancing energy efficiency has become a priority for the European Union. Several policies and initiatives aim
to improve the energy performance of buildings and collect data of sufficient quality on the effect of energy
efficiency policies on building stocks across Europe. Knowledge about the characteristics of the building stock
and the usage of these buildings' occupants is essential for defining and assessing strategies for energy savings.
Nowadays, dynamic measured data from the Advanced Metering Infrastructure (AMI), especially in electricity
consumption, combined with location-based data, like weather, cadastre, social or economic conditions, should
be available for a significant part of the building stocks in Europe. Combinedly, this enormous set of data
contains the characteristics of how buildings and their occupants consume energy.
In this document, a bottom-up electricity characterisation methodology of the building stock at the local level
is presented. It is based on the statistical analysis of aggregated energy consumption data, weather data,
cadastre, and socioeconomic information. For validation purposes, the characterisation of the electricity
consumption over Lleida (Spain) province is performed. The geographical aggregation level considered is the
postal code (more detailed than LAU level 2, formerly NUTS level 5), due to it is the highest resolution available
through the Spanish Distribution System Operators (DSOs) data portal. Besides, a web application to visualise
the results of the characterisation has also been developed. The major novelty is the use of high-frequency
consumption data from most consumers in each analysis area without considering any Building Energy
Simulation (BES) model that considers performance or energy use assumptions. For this purpose, a data-driven
technique is used to disaggregate consumption due to multiple components (heating, cooling, holiday and
baseload). In addition, multiple Key Performance Indicators (KPIs) are derived from these components to obtain
the characterisation results. The potential reuse of this methodology allows for a better understanding of the
drivers of electricity use, with multiple applications for the public and private sectors.
This study has been executed in the frame of the Energy & Location Applications of the ELISE (European
Location Interoperability Solutions for e-Government) action of the ISA 2 (Interoperability solutions for public
administrations, businesses and citizens) Programme.

On the use of artificial neural networks and micromechanical analysis for prediciting elastic properties of unidirectional composites

Scipedia content — Thu, 09 Sep 2021 12:30:02 +0200

Función de dos variables y sucesiones numéricas eventualmente periódicas.

Miguel Cerdá Bennassar — Tue, 07 Sep 2021 17:52:02 +0200

Presento un algoritmo que define una función generadora de secuencias eventualmente periódicas,
con los valores del ciclo elegibles y empezadas con cualquier número entero.

Function of two variables and sequences eventually periodic.

Miguel Cerdá Bennassar — Tue, 07 Sep 2021 17:15:03 +0200

I present an algorithm that defines a function generator of sequences eventually periodic, with eligible cycle values and starting with any integer.

D7.3 Report on UQ results and overall user experience

Jesús Sánchez Pinedo — Tue, 07 Sep 2021 12:10:22 +0200

This deliverable report focuses on the main Uncertainty Quanti cation (UQ) results obtained within the EXAscale Quanti cation of Uncertainties for Technology and Science Simulation (ExaQUte) project. Details on the turbulent wind inlet generator, that enables the supply of random, yet steady, wind velocity boundary conditions during run-time, are given in section 2. This enables the developed UQ workflow, whose results are presented on the basis of the Commonwealth Advisory Aeronautical Council (CAARC) as described in Deliverable 7.1. Finally, the completed UQ workflow and the results are evaluated from an application-driven wind engineering point of view. Thereby, the significance of the developed methods and the obtained results are discussed and their applicability in practical wind-engineering applications is tested through a complete test-run of the UQ workflow.

D4.4 API and runtime (complete with documentation and basic unit testing) for IO employing fast local storage

Jesús Sánchez Pinedo — Tue, 07 Sep 2021 11:58:37 +0200

This deliverable presents the activities performed on the ExaQUte project task 4.5 Development of interface to fast local storage. The activities have been focused in two aspects: reduction of the storage space used by applications and design and implementation of an interface that optimizes the use of fast local storage by MPI simulations involved in the project applications.

In the rst case, for one of the environments involved in the project (PyCOMPSs) the default behavior is to keep all intermediate les until the end of the execution, in case these les are reused later by any additional task. In the case of the other environment (HyperLoom), all les are deleted by default. To unify these two behaviours, the calls \delete object" and \detele le"have been added to the API and a ag \keep" that can be set to true to keep the les and objects that maybe needed later on. We are reporting results on the optimization of the storage needed by a small case of the project application that reduces the storage needed from 25GB to 350MB.

The second focus has been on the de nition of an interface that enables the optimization of the use of local storage disk. This optimization focuses on MPI simulations that may be executed across multiple nodes. The added annotation enables to de ne access patters of the processes in the MPI simulations, with the objective of giving hints to the runtime of where to allocate the di erent MPI processes and reduce the data transfers, as well as the storage usage.

Baseline Energy Use Modeling and Characterization in Tertiary Buildings Using an Interpretable Bayesian Linear Regression Methodology

Benedetto Grillone — Tue, 07 Sep 2021 11:48:02 +0200

Interpretable and scalable data-driven methodologies providing high granularity baseline predictions of energy use in buildings are essential for the accurate measurement and verification of energy renovation projects and have the potential of unlocking considerable investments in energy efficiency worldwide. Bayesian methodologies have been demonstrated to hold great potential for energy baseline modelling, by providing richer and more valuable information using intuitive mathematics. This paper proposes a Bayesian linear regression methodology for hourly baseline energy consumption predictions in commercial buildings. The methodology also enables a detailed characterization of the analyzed buildings through the detection of typical electricity usage profiles and the estimation of the weather dependence. The effects of different Bayesian model specifications were tested, including the use of different prior distributions, predictor variables, posterior estimation techniques, and the implementation of multilevel regression. The approach was tested on an open dataset containing two years of electricity meter readings at an hourly frequency for 1578 non-residential buildings. The best performing model specifications were identified, among the ones tested. The results show that the methodology developed is able to provide accurate high granularity baseline predictions, while also being intuitive and explainable. The building consumption characterization provides actionable information that can be used by energy managers to improve the performance of the analyzed facilities.

Encounting for Intra/Interlaminar Coupling by Using both In-Plane and Out-of-Plane Strains in an Hybrid Interface Model

Scipedia content — Wed, 01 Sep 2021 18:20:06 +0200

Enabling Multiscale Analysis of Very Large Composite Structures

Scipedia content — Wed, 01 Sep 2021 18:19:58 +0200

Modelling the Effect of Fibre Length Distributions in Short Fibre Reinforced Composites

Scipedia content — Wed, 01 Sep 2021 18:19:51 +0200

Efficient Modelling of Delamination Initiation and Propagation in Large Structures

Scipedia content — Wed, 01 Sep 2021 18:19:43 +0200

An Arc-Length Solver with Dissipation Path-Following for Complex Analysis of Brittle Failure and Stability of Composite Structures

Scipedia content — Wed, 01 Sep 2021 18:19:35 +0200

Modelling the Influence of The Stacking Order on Damage in Laminated Composites

Scipedia content — Wed, 01 Sep 2021 18:19:27 +0200

Investigation of Three-Dimensional Dynamic Delamination in Curved Unidirectional CFRP Laminates

Scipedia content — Wed, 01 Sep 2021 18:19:19 +0200

Thermodynamics Based Artificial Neural Networks Based Homogenization of Composite Materials

Scipedia content — Wed, 01 Sep 2021 18:19:12 +0200

Modelling the Finite Strain Behaviour of Unidirectional Composites: an Invariant-Based Model with Viscous Effects

Scipedia content — Wed, 01 Sep 2021 18:19:05 +0200

Stochastic Behaviour in Sub-Ply Failure Mechanism of Unidirectional Carbon Fiber Composites

Scipedia content — Wed, 01 Sep 2021 18:18:56 +0200

Numerical Simulations of Dynamic Delamination In [05/903]S CFRP Beams Subjected To Transverse Impact

Scipedia content — Wed, 01 Sep 2021 18:18:48 +0200

PolyHydroxyAlkanoates/ Alfa Fibers Bio-Composites: Elaboration and Mechanical Testing

Scipedia content — Wed, 01 Sep 2021 18:18:40 +0200

Mesoscale Modelling of Woven Composite Materials with Manufacturing Defect Using Micro-Tomography Images

Scipedia content — Wed, 01 Sep 2021 18:18:31 +0200

Rx-Fem Fatigue Modeling of Laminated Composites in Abaqus

Scipedia content — Wed, 01 Sep 2021 18:18:23 +0200

Structural Optimisation for Damage Tolerance

Scipedia content — Wed, 01 Sep 2021 18:18:16 +0200

A Methodology to Generate Design Allowables of Composite Laminates Using Machine Learning

Scipedia content — Wed, 01 Sep 2021 18:18:06 +0200

On a Reduced Order Fe-Model to Simulate Nonlinear Material Response in Large Composite Structures

Scipedia content — Wed, 01 Sep 2021 18:17:58 +0200

Prediction of Damages Induced by a Low-Velocity Impact on Last Generation Composite Laminates

Scipedia content — Wed, 01 Sep 2021 18:17:50 +0200

A Novel Plasticity-Damage Constitutive Model for Unidirectional Long Fibre Reinforced Polymer

Scipedia content — Wed, 01 Sep 2021 18:17:40 +0200

Identification and Drapability of High Performance Thermoplastic UD Composites for Aeronautical Application

Scipedia content — Wed, 01 Sep 2021 18:17:33 +0200

Reliability-Based Design Optimization of a Composite Plate through a Dual Design Space

Scipedia content — Wed, 01 Sep 2021 18:17:24 +0200

Improvement of Translaminar Toughness of Composite Materials through Pseudo-Ductility

Scipedia content — Wed, 01 Sep 2021 18:17:17 +0200

The Impact of the Curing and Post-Stretching Process on the Stresses Distribution Around an Open Hole in Glare Laminate

Scipedia content — Wed, 01 Sep 2021 18:17:08 +0200

Comparing Acceleration Techniques for FE2: Classic Mesoscale Modeling, Black-Box Data-Driven Modeling and Physics-Informed Hyper-Reduction

Scipedia content — Wed, 01 Sep 2021 18:17:01 +0200

Extended Failure Models for Global and Local Analyses of Composite Aerostructures

Scipedia content — Wed, 01 Sep 2021 18:16:52 +0200

Inverse Differential Quadrature Method for 3d Static Analysis of Composite Beam Structures

Scipedia content — Wed, 01 Sep 2021 18:16:45 +0200

Estimation of Sensitive Material Properties of an Open Hole Tension Test of Composite Laminates

Scipedia content — Wed, 01 Sep 2021 18:16:36 +0200

An Adaptive Approach to Tackle Localization Phenomena in Clustering-Based Reduced Order Models

Scipedia content — Wed, 01 Sep 2021 18:16:29 +0200

Key Issues in a Benchmarking Exercise for Longitudinal Tensile Failure of Unidirectional Composites

Scipedia content — Wed, 01 Sep 2021 18:16:20 +0200

Longitudinal Debonding in Unidirectional Composites: A Numerical Study of the Effect of Interfacial Properties

Scipedia content — Wed, 01 Sep 2021 18:16:13 +0200

Material Modling of Textile Reinforced Composites with Respect to Fracture Initiation and Strain Rate Sensitivity

Scipedia content — Wed, 01 Sep 2021 18:16:04 +0200

A Multi-Scale Modelling Approach Predicting the Effect of Porosity on the Transverse Strength in Composites

Scipedia content — Wed, 01 Sep 2021 18:15:57 +0200

Process Induced Deformations and Residual Stresses in Curved Composite Parts: A Parametric Analysis

Scipedia content — Wed, 01 Sep 2021 18:15:49 +0200

Multidimensional Inverse Differential Quadrature Method for Analysis of Composite Plate Structures

Scipedia content — Wed, 01 Sep 2021 18:15:41 +0200

Additive Edge Binding Layers to Suppress Free-Edgedelamination under Tensile Load

Scipedia content — Wed, 01 Sep 2021 18:15:34 +0200

Tensile Response of Automated Fibre Placement (AFP) Coupons Including Gaps and Overlaps: Experiments vs. Simulations

Scipedia content — Wed, 01 Sep 2021 18:15:25 +0200

The influence of the Curing Residual Thermal Stresses and Post-Stretching Process on Glare Laminate

Scipedia content — Wed, 01 Sep 2021 18:15:16 +0200

Characterization of Fiber Local Misalignment Using Computed Tomography Coupled with Digital Image Correlation

Scipedia content — Wed, 01 Sep 2021 18:15:08 +0200

Predicting the Elasto-Plastic Response of Short Fiber Composites Using Deep Neural Networks Trained on Micro-Mechanical Simulations

Scipedia content — Wed, 01 Sep 2021 18:15:00 +0200

Modeling and Simulation of Recycled Carbon Fiber Reinforced Composites with Varying Fiber Lengths

Scipedia content — Wed, 01 Sep 2021 18:14:51 +0200

Phase-field Based Damage Modelling of 3D-Woven Composites

Scipedia content — Wed, 01 Sep 2021 18:14:43 +0200

Fracture Properties of Agglomerated Nanoparticle Reinforced Polymers: A Coarse-Grained Model

Scipedia content — Wed, 01 Sep 2021 18:14:36 +0200

The Influence of the Internal Pressure on the Impact Behavior of Composite-Overwrapped Pressure Vessels

Scipedia content — Wed, 01 Sep 2021 18:14:28 +0200

High-cycle Fatigue Optimization of Laminated Composite Structures

Scipedia content — Wed, 01 Sep 2021 18:14:21 +0200

Numerical Modeling of Delaminsations in Multi-Layered Plates

Scipedia content — Wed, 01 Sep 2021 18:14:14 +0200

Simulation of The Wrinkling of Thin Hyperelastic Composite Strips under Global Tensile Loading

Scipedia content — Wed, 01 Sep 2021 18:14:06 +0200

Numerical Study of yhe Creep Buckling Response of Laminated Orthotropic Linear Viscoelastic Cylindrical Shells

Scipedia content — Wed, 01 Sep 2021 18:13:58 +0200

Simulation of Lightning-Induced Mechanical Damage in CFRP Laminates

Scipedia content — Wed, 01 Sep 2021 18:13:50 +0200

Micromechanisms of Load History Effects in Fatigue-Driven Delamination Growth

Scipedia content — Wed, 01 Sep 2021 18:13:42 +0200

Automated Model Generation of Large Wind Turbine Blades: Advantage of Solid over Shell Elements

Scipedia content — Wed, 01 Sep 2021 18:13:35 +0200

A Generalized Interface Law in Dynamic Coupled Thermoelasticity: Asymptotic Analysis and Fem Validation

Scipedia content — Wed, 01 Sep 2021 18:13:28 +0200

Modelling Damage Growth Using a Physically-Based and Finite Deformation Model

Scipedia content — Wed, 01 Sep 2021 18:13:19 +0200

Mode I fracture Assessment of Adhesively Bonded Non-Crimp Fabric Carbon Fiber/Epoxy Composite Joints

Scipedia content — Wed, 01 Sep 2021 18:13:12 +0200

Non-Periodicity Challenges in Modelling and Experimental Testing of 3D Woven Composites

Scipedia content — Wed, 01 Sep 2021 18:13:05 +0200

Constitutive Modeling and Finite Element Simulation of Metal-Polymer-Metal Sandwich Structures

Scipedia content — Wed, 01 Sep 2021 18:12:56 +0200

Model Error Estimation Based on Asymptotic Homogenization for Periodic Heterogeneous Structures

Scipedia content — Wed, 01 Sep 2021 18:12:48 +0200

A Data-Reduction Method for Intralaminar Cohesive Properties Using a Bayesian Approach

Scipedia content — Wed, 01 Sep 2021 18:12:41 +0200

Optimization of Specimen and Tabs Geometry for Quasi-Static and Fatigue Testing of Composites in UD 90° Laminates

Scipedia content — Wed, 01 Sep 2021 18:12:34 +0200

Microscale Analysis of the Influence of Void Content, Distribution and Size on Fiber-Reinforced Polymers

Scipedia content — Wed, 01 Sep 2021 18:12:26 +0200

An Updated Simulation Framework for the Prediction of Process Induced Shape Distortion in Thermoset Composites

Scipedia content — Wed, 01 Sep 2021 18:12:16 +0200

Characterization of Interlaminar Friction During Forming Processes of Thermoplastic CFRP Materials

Scipedia content — Wed, 01 Sep 2021 18:03:25 +0200

Modelling the Rate- and Temperature-Dependent Micro-Mechanical Behaviour of Carbon Fiber Reinforced PVDF

Scipedia content — Wed, 01 Sep 2021 18:02:44 +0200

Visco-Plastic Behaviour of a Polymer Matrix at the Fibre Diameter Length Scale: a Finite Element Mesoscale Model Relying on Shear Transformation Zone (STZ) Dynamics

Scipedia content — Wed, 01 Sep 2021 18:02:00 +0200

Methodical Development of a Structural Health Monitoring System for COPV Supported by a Digital Shadow.

Scipedia content — Wed, 01 Sep 2021 18:00:08 +0200

Numerical Stress Analysis for Prediction of Crack Propagation Direction in Adhesive Layer

Scipedia content — Wed, 01 Sep 2021 17:59:33 +0200

Fiber Break Model for Unidirectional Composites in Tension-Tension Fatigue.

Scipedia content — Wed, 01 Sep 2021 17:58:51 +0200

Experimental Inverstigations on the Influence of Prestress on Lamb Wave Propagation

Scipedia content — Wed, 01 Sep 2021 17:57:42 +0200

Computationally Efficient Modeling of Delamination Behavior in Laminated Composites

Scipedia content — Wed, 01 Sep 2021 17:57:09 +0200

Partitioned-domain Particle-continuum Coupling Methods for Simulations of Inelastic Amorphous Polymer-Based Nanocomposites

Scipedia content — Wed, 01 Sep 2021 17:56:12 +0200

Distortional Hardening Material Model for Unidirectioally Reinforced CFRTP Considered from the Results of Numerical Material Testing

Scipedia content — Wed, 01 Sep 2021 17:55:32 +0200

Discrete-to-Continuum Coupling of Pre-Deformed Thermoplastic Polymers

Scipedia content — Wed, 01 Sep 2021 17:55:03 +0200

It‘s on a Roll: Draping Courses of Glass Fiber Fabric in a Wind Turbine Blade Mold by Means of Optimization

Scipedia content — Wed, 01 Sep 2021 17:53:50 +0200

A Framework for Homogenizing Poly-crystalline Silicon Wafers Including Pre-cracks

Scipedia content — Wed, 01 Sep 2021 17:53:17 +0200

Averaging techniques for microstructures with localization bands due to damage progression

Scipedia content — Wed, 01 Sep 2021 17:51:36 +0200

Towards Controlled Peeling as a Process to Recover Reusable Organosheet Laminae

Scipedia content — Wed, 01 Sep 2021 17:51:00 +0200

Probabilistic Failure Prediction under Combined in-plane Compression-Shear Loading for Unidirectional Fiber Reinforced Composites

Scipedia content — Wed, 01 Sep 2021 17:43:21 +0200

Evaluation of the Influence of the Matrix-inclusion Interface Based on FFT Methods

Scipedia content — Wed, 01 Sep 2021 17:41:51 +0200

Functional Composites for Energy Harvesting Applications with Low-Frequency Magnetic Actuation

Scipedia content — Wed, 01 Sep 2021 17:41:18 +0200

An Adaptive Floating Node Based Formulation for Progressive Fatigue Analysis of Multiple Delaminations

Scipedia content — Wed, 01 Sep 2021 17:40:43 +0200

Application of a Rate Dependent Model on a UD NCF Carbon/Epoxy Composite

Scipedia content — Wed, 01 Sep 2021 17:40:12 +0200

Mechanical Response of Highly Deformable thin Shell Composites

Scipedia content — Wed, 01 Sep 2021 17:39:34 +0200

Failure of Thermoplastic Composite Welded Joints

Scipedia content — Wed, 01 Sep 2021 17:38:56 +0200

Circular Microstructural Volume Elements With Periodic Boundary Conditions for Localization Problems

Scipedia content — Wed, 01 Sep 2021 17:38:18 +0200

On the Optimization of Carbon Nanotube-Enriched Multifunctional Composites: Mechanical and Electrical Approach

Scipedia content — Wed, 01 Sep 2021 17:37:44 +0200

Multiscale Modeling of Composite Laminates Delamination via Computational Homogenization

Scipedia content — Wed, 01 Sep 2021 17:36:50 +0200

Homogenization of Nonlinear Viscoelastic Three-Phase Particulate Composites

Scipedia content — Wed, 01 Sep 2021 17:36:08 +0200

A Finite Deformation Phase-Field Fracture Model for Nanoparticle/Polymer Composites

Scipedia content — Wed, 01 Sep 2021 17:35:33 +0200

Intralaminar Crack Growth Rates of Interacting Cracks Related to Individual Energy Release Rates

Scipedia content — Wed, 01 Sep 2021 17:34:46 +0200

On Correlations Between Local Microstructure and The Appearance of Fibre Breaks in Unidirectional Composite Materials

Scipedia content — Wed, 01 Sep 2021 17:34:18 +0200

Calibration and Validation of a Numerical Curing Model Using AS4/8552 Asymmetrical Laminated Composite Plates

Scipedia content — Wed, 01 Sep 2021 17:33:21 +0200