A5067891102- Natural Fiber Reinforced Composites
- Metal Forming Simulation Techniques
- Metallurgy and Material Forming
- Material Selection and Properties
- Additive Manufacturing and 3D Printing Technologies
- Microstructure and mechanical properties
- High-Velocity Impact and Material Behavior
- Engineering and Information Technology
- Atmospheric chemistry and aerosols
- Knowledge Societies in the 21st Century
- Electrospun Nanofibers in Biomedical Applications
- Optical measurement and interference techniques
- Indoor Air Quality and Microbial Exposure
- Education and Art Integration
- Tribology and Wear Analysis
- Air Quality and Health Impacts
- Vehicle emissions and performance
- Bamboo properties and applications
- Environmental and Ecological Studies
- Plant responses to elevated CO2
- Mechanical Behavior of Composites
- Structural Analysis and Optimization
- Mechanical Engineering and Vibrations Research
- Advanced Surface Polishing Techniques
Universität der Bundeswehr München
2022-2024
University of the Basque Country
2015-2019
In the paper new biaxial specimen geometries for thin ductile sheet metals are proposed. The design focuses on stress-dependent damage and failure behavior. A plastic anisotropic material model based Hill's yield criterion corresponding associated flow rule is presented related parameters given. Accompanying numerical simulations reveal stress state relate mechanisms to loading condition. different proposed indicate various effects localization of inelastic strains, orientation as well...
Abstract Investigation of the sheet metal formability is an important issue in design components. During forming different deformation histories occur which may cause various damage and failure mechanisms on micro-level affecting quality products. Therefore, description material characteristics by means a linear limit change curve not sufficient because remaining fracture processes also depend history. For this purpose aluminium alloy AA6016 systematically investigated order to obtain their...
The present paper explores a new concept of hybrid eco-composite by substituting the natural fibre plies with thin wood veneers. composite, named Fibre-Wood Laminate (FWL), is inspired fibre-metal laminate materials. studied FWL configuration consisted single pinewood veneer at each outer layers flax woven fabric reinforced bio-epoxy composite manufactured infusion. Three-point bending results showed that gives highly anisotropic nature to FWL. In best case, grain 0°, stiffness and strength...
Abstract The onset of plastic deformation is an important parameter for accurate description the flow curve and Young’s modulus. Determining actual physical start already experimentally challenging classic sheet metal materials. In addition to experimental challenge, depends on numerous parameters such as strain rate, temperature forming history. Non-proportional load paths in particular can significantly influence flow. Three different materials, a micro-alloyed steel HC340LA, dual-phase...
During the manufacturing and service of thin metal sheets, different stress states occur, often caused by non-proportional loading conditions. They can lead to localization inelastic deformations as well damage failure processes. In present paper, a series experiments with newly designed biaxially loaded specimens is presented analyze behavior ductile sheets under load paths. Bands holes orientation have been milled in critical regions localize stresses strains. compression tests, special...
Abstract The paper deals with the ductile damage and failure behavior of thin sheet metals under proportional biaxial loading paths. A newly designed specimen is presented an experimental series different ratios performed. Corresponding numerical simulations including plastic anisotropy reflect stress state enable interpretation mechanisms. Due to fabrication issues geometry for this class materials has get by without notches in thickness direction consequently new specimens pre‐define...
This experimental work is aimed at the influence of seawater immersion in low impact energy behavior a novel Colombian fique fiber reinforced bio-resin laminate. Such material was manufactured by vacuum infusion. The specimens were immersed during bioactivity period six months. Low tests performed order to obtain penetration and perforation threshold according profiles. damage extent characterized means Ultrasonics. Tensile stress also breaking surfaces analyzed Scanning Electron Microscopy....
En el presente trabajo, fueron utilizadas fibras naturales tales como fique, canamo, lino y yute para reforzamiento de una matriz polimerica termoestable con caracteristicas biodegradables. Estos materiales se mezclaron mediante la tecnica fabricacion compuestos denominada Hand lay up. Se caracterizo cada combinacion fibra/matriz ensayos traccion bajo norma ASTM D3039. Adicionalmente realizo simulacion en un software CAD/CAE fin evaluar comportamiento los objeto estudio pieza del compartimento...
Los materiales biocompuestos son una alternativa ecologicamente viable para el reemplazo de compuestos convencionales como la fibra vidrio y carbono en fabricacion componentes o partes equipos, donde su funcion puede no requerir unos valores resistencia mecanica altos pueden cumplir funciones tipo estetico. Estos estan conformados resina polimerica que hace parte matriz fibras naturales actuan refuerzo, permitiendo mejorar las propiedades mecanicas termicas sin fibra. Investigaciones...