scholarly journals Developing Fall-impact Protection Pad with 3D Mesh Curved Surface Structure using 3D Printing Technology

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1800 ◽  
Author(s):  
Park ◽  
Lee
Keyword(s):  
3D Printing ◽  
Human Body ◽  
Curved Surface ◽  
Printing Technology ◽  
Mesh Structure ◽  
3D Printing Technology ◽  
Spacer Fabric ◽  
Impact Protection ◽  
Scan Data ◽  
The Impact

In this study, we present the development of fall-impact protection pads for elderly people using three-dimensional (3D) printing technology. To develop fall-impact protection clothing, it is important to maintain the functionality of the protection pad while ensuring that its effectiveness and appearance remain optimal in the process of inserting it. Therefore, this study explores the benefit of exploiting 3D scan data of the human body using 3D printing technology to develop a fall-impact protection pad that is highly suited to the human body shape. The purpose of this study was to present a 3D modeling process for creating curved protective pads comprising a hexagonal mesh with a spacer fabric structure and to verify the impact protection performance by printing curved pads. To this end, we set up a section that includes pads in the 3D human body scan data and extracted body surface information to be applied in the generation of the pad surface. The sheet-shaped hexagonal mesh structure was cut and separated according to the pad outline, and then deformed according to the curved surface of the human body. The pads were printed, and their protection performance was evaluated; a 79.2–81.8% reduction in impact force was observed compared to similar cases in which the pads were not used.

scholarly journals Development and Evaluation of Fall Impact Protection Pads Using Additive Manufacturing

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3440 ◽  
Author(s):  
Jung Hyun Park ◽  
Hee-Kyeong Jung ◽  
Jeong Ran Lee
Keyword(s):  
Additive Manufacturing ◽  
Human Body ◽  
Protective Clothing ◽  
Elderly Women ◽  
Impact Force ◽  
Thermoplastic Polyurethane ◽  
Ease Of Use ◽  
Mesh Structure ◽  
Impact Protection ◽  
The Impact

This paper presents the development and evaluation of fall-impact protection pants for elderly women using additive manufacturing. The protective pants were designed incorporating a protective pad in the hip area to reduce the impact of falls on the human body. The protective pad is a 3D mesh structure with a curved surface to fit the human body. Pads printed with flexible thermoplastic polyurethane were combined with foam to create the final pad. The impact-absorbing performance of the pad was verified through physical impact experiments. When dropping a bowling ball onto the protective pad from heights of 15, 20, and 25 cm, the protective pad was found to reduce the impact force by more than 82% in all cases. The impact force was less than the average fracture threshold of 3472 N. A subject group and an expert group evaluated the appearance, pad characteristics, motion functionality, and the wearability of the protection pants. Despite the insertion of a pad, the pants appeared natural and had a good fit. The pads were evaluated as being well-designed in terms of their position, shape, area, thickness, weight, flexibility, ease of insertion, and ease of use. Users were comfortable performing various motions when wearing the designed protective clothing. Therefore, this work can be considered to have developed protective clothing that provides satisfactory impact-protection performance and comfort thereby advancing the possibility of applying additive manufacturing to the creation of functional garments.

scholarly journals The Impact of 3D Printing Technology on Ship System’s Availability

Naše more ◽  
2015 ◽  
Vol 62 (4) ◽  
pp. 93-96
Author(s):  
Igor Vujović ◽  
◽  
Joško Šoda ◽  
Ivica Kuzmanić
Keyword(s):  
3D Printing ◽  
Printing Technology ◽  
3D Printing Technology ◽  
The Impact

The fourth industrial revolution: a game-changer for the tourism and maritime industries

2020 ◽  
Vol 12 (1) ◽  
pp. 13-23 ◽  
Author(s):  
A. Kobina Armoo ◽  
Lanna-Gaye Franklyn-Green ◽  
Atneil J. Braham
Keyword(s):  
3D Printing ◽  
Industrial Revolution ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
Fourth Industrial Revolution ◽  
Dry Dock ◽  
Maritime Industries ◽  
The Government ◽  
The Impact

Purpose This paper aims to examine the floating dry dock and 3D printing technologies in relation to the ways in which they have the potential to complement each other. This relates to how the tourism and maritime industries in Jamaica could become more robust and competitive. Design/methodology/approach This study used a qualitative approach through the application of personal interviews and data from secondary sources. Findings Although Jamaica is positioning itself to become one of the leading maritime and logistics centres in the world, the government has not fully taken advantage of the fourth industrial revolution and its enabling factors. The integration of the floating dry dock with 3D printing technology has the ability to advance Jamaica from its current position to become a more economically viable country. Research limitations/implications Time was a limitation for the researchers in conducting this study. As a result, a more robust field study is needed to fully understand the impact of the fourth industrial revolution technologies on the maritime and tourism industries. Practical implications An investment in a floating dry dock and 3D printing technology will spur job creation. The researchers expect improved economic activity in Jamaica resulting from many businesses being created and/or improved. Social implications The quality of life is expected to increase because of the greater economic yields the country will receive from such investments. Originality/value This paper explored the combination of the floating dry dock and 3D printing technologies and their impact on the tourism and maritime industries in relation to increasing service value and economic yields.

scholarly journals Study on the Application Value of CT Thin-Layer Scan Data Assisted 3D Printing Technology in Hip and Knee Replacement

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Shihua Sun ◽  
Yongbin Xi ◽  
Xingchen Shi ◽  
Li Zhao ◽  
Fuming Ma ◽  
...  
Keyword(s):  
3D Printing ◽  
Thin Layer ◽  
Knee Replacement ◽  
Operation Time ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Actual Application ◽  
Loss Of Reduction ◽  
Scan Data ◽  
Ankle Function

To better study hip and knee replacement, 50 eligible hip and knee patients from March 2020 to April 2021 were selected. A 1 : 1 scale solid model was printed with CT thin-layer scanning data assisted by 3D printing technology to evaluate the ankle function of patients six months after surgery. The results showed that the 3D rapid prototyping time of the 1 : 1 fracture model in 50 patients was 3-4 hours. The operation time was 70–90 min, and the average operation time was 80 min. The actual application in operation was consistent with that in the simulation of the 3D printing model, after surgery, and there was no infection of incision soft tissue or loss of reduction in all 50 patients. CT thin-layer scan data aided 3D printing technology can help clinical hip and knee replacement simulation and planning, improving surgery’s accuracy and safety.

Survey analysis for the adoption of 3D printing technology: consumers’ perspective

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Maria Mavri ◽  
Evgenia Fronimaki ◽  
Athanasia Kadrefi
Keyword(s):  
3D Printing ◽  
Environmental Changes ◽  
New Technology ◽  
Social Implications ◽  
Innovative Technology ◽  
Survey Analysis ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
The Impact

Purpose Although the adoption of 3D printing technology in many sectors such as medicine, aerospace, jewelry and the food industry is remarkable, the adoption of 3D printing technology by hobbyists remains unknown. The purpose of this paper is to map the attitude of individuals toward this new technology, define critical factors that have an impact on hobbyists’ behavior and, finally, explore the impact of 3D printing on social, economic and environmental changes, as 3D printing technology redesigns manufacturing, thereby impacting many sectors of day-to-day life. Design/methodology/approach A survey has been carried out on Greek hobbyists, and valuable conclusions have been drawn. Data were collected using a structured questionnaire survey performed on a sample of 344 Greek consumers in this sector. A questionnaire of 30 questions was distributed electronically. Findings This paper contributes to the determination of the percentage of individuals that know about 3D printing, the factors that have a significant contribution to adoption of the technology and, finally, identifies the profile of those that use 3D printing technology either in their work or for their hobby. Using a factor analysis, the authors classified users into five categories based on their attitudes towards 3D printing adoption: “innovators,” “informed,” “ecologists,” “engineers” and “re-users.” Research limitations/implications The authors believe that understanding the predictors of 3D printing technology adoption for personal use and its benefits will overcome a pertained research gap and establish an empirical nucleus for further studies in relevant contexts. This type of research is necessary to expand the survey to other European countries. Practical implications 3D printing is not new, but rather is an emerging technology. Individuals are willing to adopt this innovative technology. Based on the results of our survey, a desktop 3D printer will be necessary for every home and office in the near future. Social implications The impact of 3D printing technology on rural life and its social implications are open questions. In this paper, by identifying the groups of hobbyists, the authors determine their particular characteristics and their perspectives on this new technology. All of what is discussed above is valuable for mapping the characteristics of those who adopt this technology. Originality/value This study is attempting to determine the behavior of individuals towards 3D printing technology, their awareness and how familiar they are with this new technological innovation.

scholarly journals Integrating 3D Printing Technologies into Architectural Education as Design Tools

2020 ◽  
Vol 4 (2) ◽  
pp. 73-81 ◽  
Author(s):  
Hemza Boumaraf ◽  
Mehmet İnceoğlu
Keyword(s):  
3D Printing ◽  
Spatial Perception ◽  
Deep Understanding ◽  
Computational Design ◽  
Architectural Education ◽  
Small Scale ◽  
Support Design ◽  
Printing Technology ◽  
3D Printing Technology ◽  
The Impact

3D printing technology offers the chance to produce very small-scale, complex forms that could help to improve educational materials for architectural design. In this age of technological advances, architectural education needs to integrate modern teaching methods that could enhance students’ visual perception. This research thus examined the impact of computational design modeling and 3D printing technology on the spatial cognition of architecture students. It starts with the premise that the use of the 3D printed models will support design logic and improve the deep understanding of spatial perception among students. Thirty architecture students were asked about a designed project realized for the purpose of this study. They were presented both a project designed via computer modeling software and a printed model of the same project. The outcomes indicate that the use of 3D printing gave better results in the development of students’ spatial abilities. The findings also confirm that adopting this technology in the development of teaching tools will enhance students’ spatial perception and extend beyond the seamless materialization of the digital model which can continuously inform design ideation through emerging perception qualities.

scholarly journals The impact of 3D Printing Technology on the supply chain: Manufacturing and legal perspectives

2018 ◽  
Vol 205 ◽  
pp. 156-162 ◽  
Author(s):  
Hing Kai Chan ◽  
James Griffin ◽  
Jia Jia Lim ◽  
Fangli Zeng ◽  
Anthony S.F. Chiu
Keyword(s):  
Supply Chain ◽  
3D Printing ◽  
Printing Technology ◽  
3D Printing Technology ◽  
The Impact
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