Ana Pilipović

Ana Pilipović
University of Zagreb Faculty of Mechanical Engineering and Naval Architecture · Department of Technology

PhD

About

69
Publications
61,713
Reads
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978
Citations
Additional affiliations
July 2015 - present
University of Zagreb
Position
  • Professor (Assistant)
July 2015 - present
Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb
Position
  • Professor (Assistant)
January 2008 - June 2015
Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb
Position
  • Research Assistant
Education
January 2008 - October 2012
Faculty of Mechanical Engineering and Naval Architecture
Field of study
  • Mechanical Engineering
September 1999 - July 2006
Faculty of Mechanical Engineering and Naval Architecture
Field of study
  • Mechanical Engineering

Publications

Publications (69)
Article
Full-text available
Polymer composites have been utilized across various industries, especially in transportation, for many years. With a growing emphasis on sustainable production resources, the industry increasingly favours composite materials reinforced with natural fibres or particles. Unlike conventional fibres such as glass, carbon, or aramid, natural fibres typ...
Article
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Providing good protection for cultivated plants against weather conditions like hail, frost, and wind, as well as from animals like birds, insects, and wild boars, is important for enhancing plant growth and improving both production and quality. For this reason, plants are grown in covering systems (greenhouses) where covering materials play a maj...
Article
Full-text available
(1) Background: Digital technologies are available for denture base fabrication, but there is a lack of scientific data on the mechanical and chemical properties of the materials produced in this way. Therefore, the aim of this study was to investigate the residual monomer content, flexural strength and microhardness of denture base materials as we...
Article
Full-text available
Additive manufacturing procedures are being increasingly developed, from prototyping to finished functional products. However, their rapid development also brings along the testing of properties with different manufacturing parameters. In selective laser sintering, the most influential manufacturing parameter is the energy density, which also consi...
Article
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Due to its mechanical, rheological, and chemical properties high-density polyethylene (HDPE) is commonly used as a material for transport of various media. Low thermal conductivity (0.37 W/mK) limits usage of HDPE in the heat exchanger systems. This property can be improved by adding 20% synthetic carbon to the PE matrix which increases the thermal...
Article
Full-text available
Due to its mechanical, rheological, and chemical properties, high-density polyethylene (HDPE) is commonly used as a material for producing the pipes for transport of various media. Low thermal conductivity (0.4 W/mK) narrows down the usage of HDPE in the heat exchanger systems. The main goal of the work is to reduce the vertical depth of the HDPE p...
Article
Full-text available
Plastic films utilized as greenhouse coverings play a vital role in safeguarding plantations from diverse weather conditions like sunlight, rain, hail, and wind. It is essential for these films to preserve their properties even after extended exposure to sunlight and water, while also maintaining transparency to support the unhindered growth of pla...
Article
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(1) Background: Various materials are available for CAD-CAM denture base fabrication, for both additive and subtractive manufacturing. However, little has been reported on bond strength to soft denture liners. Therefore, the aim of this study was to investigate tensile bond strength, comparing between different denture base materials and soft dentu...
Article
Background Medial patellofemoral ligament (MPFL) reconstruction is a standard treatment option for selected patients with patellar instability. Although frequently performed, the optimal graft source for the procedure has not yet been established. This study aimed to determine whether a two-strand plantaris tendon construct possesses the biomechani...
Chapter
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In this chapter, general workflow in Additive Manufacturing process is shown, from preprocessing activities that include preparing appropriate CAD model, selecting required STL file resolution, up to setting processing parameters for AM process.
Article
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Polymer composites have various application in automotive industry. Achieving vehicle efficiency in public transportation, among other goals, is often done by lightweight materials like fibre reinforced plastics as structural elements of the vehicle. A concept solution for a V shaped structural floor element of a city bus is proposed in this paper....
Article
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Article presents analysis of the influence of infill pattern on 3D printed parts compression properties. Most of the researches from this field covered tensile 3D-printed parts properties, but for some applications compression mechanical properties are far more important. For the analysis of compression strength, 3D-printed specimens were produced...
Article
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The price of material is an important factor when selecting the additive polymer procedure. In selective laser sintering (SLS), the price can be reduced by the recycling of material, i.e., with different shares of original and recycled material, as well as by the orientation of the product during manufacturing. Numerous tests warn that orientation...
Article
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The aim of this research was to investigate the compressive strength (CS), breaking strength (BS), and compressive modulus (CM) of conventional glass ionomer cement (GIC) modified with TiO2 nano particles, marine-derived hydroxyapatite (md-HAp) microparticles (<45 µm), and a combination of TiO2 NP and md-HAp particles. The materials used in the stu...
Article
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In recent years biodegradable plastic films have been increasingly used for various purposes, most often as grocery bags and for collecting bio-waste. Typically, the biodegradation of these films should take place in industrial compost facilities where the biodegradation process occurs under controlled conditions. Nevertheless, many of these films...
Article
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From the very start of their use until today, processes in Additive Manufacturing (AM) have found a way to grow from prototype production to individual and small-series production. Improvements in machinery, materials and other challenges in AM development have improved product quality, its mechanical properties and dimensional accuracy. Research i...
Article
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The purpose of this study was to evaluate the effects of the incorporation of hydroxyapatite (HA) derived from cuttlefish bone on the mechanical properties of glass ionomer cements (GIC). Fuji II LC and Fuji IX GP Extra (GC Corporation, Tokyo, Japan) were used in the study. There were four groups (n = 11–18) for each material: a group without the a...
Article
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The automotive industry is one of the biggest consumers of polymer composites. Aside from good mechanical properties, polymer composites have low mass, which positively affects the overall vehicle weight reduction and improves energy efficiency. Although polymer composites are used in various vehicle components, this paper focused on the applicatio...
Article
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U industriji obuće, sve je veća pozornost na dizajnerski oblikovane potpetice. Ali taj dizajn uključuje mogućnost proizvodnje složene geometrije, personaliziranih potpetica male mase i ako je moguće jeftinu izradu. Tehnologija koja omogućuje i obuhvaća navedeno je aditivna proizvodnja (e. additive manufacturing - AM). Jedna od AM niskobudžetnih tehnol...
Article
Full-text available
In the footwear industry, increasing attention is paid to design-shaped heels. But that design involves production of the complicated geometry, personalised heels (i.g. small series), light weight heels and if possible cheap production. Technology that enables and combines that is additive manufacturing (AM). One of AM low budget technology and mac...
Article
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This work investigates the methodology of producing a 3D-printed microreactor from the acrylic resin by PolyJet Matrix process. The PolyJet Matrix technology employs different materials or their combinations to generate 3D-printed structures, from small ones to complex geometries, with different material properties. Experimental and numerical metho...
Article
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Polymer products manufactured by additive processes are today increasingly flooding the market. Given that they have broad application ranging from various consumer products to medicine and automotive industry, the products must satisfy certain mechanical properties. In the past studies of selective laser sintering (SLS) for polymer materials, the...
Article
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All created in the Nature is the result of natural technology. Solutions from Nature can be incentive for artificial, man's technology of living (biotechnology) and technology of abiogenesis. We have set ourselves the question what is a natural additive model for making parts. After geological analysis and playback of some products of Nature and ma...
Article
The concept of materials coming from nature with environmental advantages of being biodegradable and/or biobased (often referred to as bioplastics) is very attractive to the industry and to the consumers. Bioplastics already play an important role in the fields of packaging, agriculture, gastronomy, consumer electronics and automotive, but still th...
Article
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Additive technologies have their place in process of making new parts, from idea to final product. First step in all additive manufacturing is the development of a 3D CAD model which can be made by 3D modeling in any CAD software or 3D scanning and reverse engineering. When scanning parts in automated measuring cell on rotation table, some kind of...
Conference Paper
In selective laser sintering (SLS) of polymer products the price of material is not the most important factor, but it does play a significant role when analysing the overall i.e. final price of the product, and therefore recycling of material is becoming an increasingly important factor, as well as the ratio of the shares in combining the original...
Article
Full-text available
Purpose The purpose of this paper is the selection of production parameters in selective laser sintering – SLS for the production of quality products (e.g. good mechanical properties). The manufacturing procedure affects the properties, which is especially significant in additive procedures, as the products are not cheap and the procedure and mater...
Conference Paper
Full-text available
Development of new product is particularly complex because it involves understanding many areas of design, from an aesthetic design to knowledge of mechanical and product properties. Also specialty polymer materials and their processing presents difficulties in the development of the product itself. Nowadays, additive manufacturing is, especially f...
Conference Paper
Full-text available
High market demands that is oriented to the manufacturing of complicated products within short time at low cost have led to the increasing application of additive manufacturing, especially for small or individual series. These technologies can assist in identifying the basic mistakes that are expensive to correct if they are detected when the produ...
Article
Full-text available
Additive manufacturing (AM) is increasingly applied in the development projects from the initial idea to the finished product. The reasons are multiple, but what should be emphasised is the possibility of relatively rapid manufacturing of the products of complicated geometry based on the computer 3D model of the product. There are numerous limitati...
Article
According to market research forecasts the 3D-printing industry will grow by more than 31%annually through 2020 and generate more than $21 billion in global revenue; as much as 10%of that will come from the bioprinting segment of the market. Consumers will adopt personalized 3D printing for selfprinted clothing, parts, and household items, while bu...
Article
Full-text available
Polymer composites have been used in industry for more than fifty years, from shipbuilding all the way to aviation and vehicles. Numerous excellent properties of these materials, low costs and simplicity of production have resulted in large expansion of their application area. In the application in aviation industry materials have to be of low dens...
Article
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The 20th World Cup will be held in Brazil this year. This is the second time that Brazil is hosting the World Cup, the fi rst one being in 1950. Long ago, football became something more than the most important thing in the world. However, not many people noticed what a key role in this global sport the plastics and rubber play. The offi cial match...
Article
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With longer exposure to atmospheric impacts the products lose their properties and the life cycle decreases. Consequently, there is need to determine the material properties after a longer exposure to atmospheric impacts. The paper has studied the impact of natural and laboratory ageing on the mechanical properties of the reaction cast polyamide 6...
Article
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Excitement about any new technology should be balanced with the application of time-tested forecasting tools. To predict the cost curve of a new technology, we need to consider both the rate of volume growth and the rate of cost decline. It is a stretch to envision a near-term future in which the typical consumer uses a 3D printer at home to make a...
Article
From 16 to 23 October 2013 Dusseldorf hosted the world's largest exhibition of plastics and rubber and related industries - machinery and equipment, measuring devices, and other services - K'13. It was held in 19 halls on exhibition area of 171,326 m2 for 3,218 exhibitors from 59 countries, of which 782 materials manufacturers, 356 processors (manu...
Article
Additive technologies are entering the market in all price segments and the development of new machines and materials is rapidly growing. Machines under 2000 œ are more and more interesting for home and educational use. This paper presents the development of a 3D printer that shapes the parts layer by layer by depositing the material on a predefine...
Article
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In today's world environmental protection plays an important role. This also includes the rivers, lakes, seas and oceans. The general problem in the seas and oceans, among other things, are the discarded plastic products. Such fl oating plastic products act as absorbers of heavy metals, pesticides, polychlorinated biphenyls (PCBs) and other toxins...
Article
Euromold 2012 was held in Frankfurt/ Main from 27 to 30 November 2012 with the concept From Design to Prototyping to Series Production. At this year's EuroMold special topics was Jewellery Industry. Austria was the partner country of EuroMold 2012 because Austria is the 7th important export market for Germany and the country has a strong position i...
Article
Rapid prototyping (RP) has started to develop in the 1980s and then RP was used only for prototyping. At the same time Rapid Tooling (RT) was developed, which together with RP is called Rapid Manufacturing (RM). Since 2009, according to ASRM F42, the term Additive Manufacturing (AM), has been used. Additive technology can reduce the production time...
Article
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Rapid prototyping procedures make it possible to produce relatively complicated geometries based on the computer 3D model of products in relatively short time. This requires that the respective product features have good quality, good mechanical properties, dimensional accuracy and precision. However, the number of available materials that can be u...
Article
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By interweaving direct rovings, 40-60 mm wide edges of the fabrics are being cut as waste. With the aim of reducing waste accumulation, several possibilities of recycling discontinuous E-glass fibres have been studied. The intention of the study was not to develop a particular product, but to test the possibilities of materials preparation when dis...
Article
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The production of glass containers is a very complex and demanding procedure which has to be very well equipped and optimally adjusted in order to produce glass containers that satisfy even the most demanding customers, at the same time being competitive on the market. Glass containers have to be maximally light, as well as less expensive, and at t...
Article
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The basis in the production of elastomeric materials is rubber which becomes cured during crosslinking process. Curing is a chemical-physical modification in which mostly plastic rubber transfers to rubber-elastic state. The curing process requires a curing agent, most frequently sulphur, and the process is performed at higher temperatures for seve...
Article
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The key factor of success for the development of a project is risk identification, as well as the development of a risk management system. Risk management is a discipline which comprises methods and principles that are part of the lifecycle of a project. Successful realization of projects and their application greatly depend on the risk management....
Article
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Rubber is the basis in the production of elastomeric materials which is transformed into the rubber-elastic state through the crosslinking procedure. A crosslinking agent is used for crosslinking-sulphur, as well as accelerators, activators and retarders if pre-crosslinking of rubber compound is to be prevented. Crosslinking occurs at higher temper...
Article
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Adhesive bonding is a modern method for joining parts and is applied for connecting different types of materials.Adhesive bonding has many advantages over mechanical joining, because in adhesive bonding load is carried over entire surface of joint thus providing better resistance to flexural stress and vibrations. Adhesives are substances that, bas...
Article
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Rapid prototyping (RP) can substantially shorten the time and reduce the cost of developing a new product from the initial idea to production. Rapid prototyping can help in recognizing the basic defects whose subsequent correction may prove very expensive, especially if they have already been made when the product is ready for production. There are...
Article
Full-text available
Article
One of the basic disadvantages of rapid prototyping (RP) processes is still the limited number of materials for the prototype production. Moreover, the physics of prototype production is different than the one for e.g. injection moulding. Such state causes application of RP processes for production of elements or complete moulds - Rapid Tooling pro...
Article
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With Additive Manufacturing -AM it is possible to create physical models, prototypes, components, tools and functional parts from 3D data constructed using the computer (CAD), with complicated geometry, which is very difficult or even impossible to do with other manufacturing technologies. AM processes for the manufacturing of prototypes use metals...
Article
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By reason of the deposit model of the Ordinance on Packaging and Packaging Waste nearly the total beverage packaging waste is collected and recovered. Collectors, transporters and recyclers are designated by the Environmental Protection and Energy Efficiency Fund. Its duty is to pay for collection and transport, so the Fund is the owner of all gath...
Article
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The global population growth in the last decades has caused an ever increasing consumption of materials and natural resources, which consequently generated more solid waste, impacting negatively on the environment and requiring a sustainable waste management system. These discarded materials are mainly composed of plastics, glass, paper, metal and...

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