Jan 01, 2015· Although it has limitations, the Securisport was found to effectively distinguish between the prepared surfaces, and provided insights to how the turf components affected frictional behaviour of the overall artificial turf surface. These insights provide relevant considerations for improving the skin-friendliness of turf products, suggesting that improvements in the reduction of friction from the

Insights to Skin-turf Friction as Investigated Using the Securisport.... Insights to Skin-turf Friction as Investigated Using the Securisport.pdf. Available via license: CC BY-NC-ND 4.0.

Test results showed that turf fibers influenced the frictional behaviour of partially-filled systems to a great extent. The results from the Securisport were useful in providing insights to how various turf components affect the skin-turf interaction and may be beneficial in the development of more skin-friendly turf products

Insights to skin-turf friction as investigated using the Securisport. By Sock P. Tay, Paul R. Fleming... This is an open access article under the CC BY-NC-ND license.The objective of this study was to investigate the effect of the infill and fibers of an artificial turf surface to the overall frictional behavior of the surface. The...

To achieve a range of frictional behaviours, several “third generation” 3G carpet and infill combinations were investigated; friction time profiles throughout the Securisport rotations were assessed in combination with independent measurements of skin roughness before and after friction testing via 3D surface scanning. The results indicated that carpets without infill had greatest friction (coefficients of friction

The occurrence of skin friction related injuries is an issue for artificial turf sports pitches and remains a barrier to their acceptance. The purpose of this study was to evaluate the current...

Sep 18, 2016· Due to the greater shear stress at the wall, the skin friction drag is greater for turbulent boundary layers than for laminar ones. Skin friction drag is predominant in streamlined aerodynamic profiles, e.g. fish, airplane wings, or any other shape where most

To achieve a range of frictional behaviours, several “third generation” 3G carpet and infill combinations were investigated; friction time profiles throughout the Securisport rotations were assessed in combination with independent measurements of skin roughness before and after friction testing via 3D surface scanning. The results indicated that carpets without infill had greatest friction (coefficients

The occurrence of skin friction related injuries is an issue for artificial turf sports pitches and remains a barrier to their acceptance. The purpose of this study was to evaluate the current...

Aug 25, 2016· ABSTRACTThe occurrence of skin friction related injuries is an issue for artificial turf sports pitches and remains a barrier to their acceptance. The purpose of this study was to evaluate the current industry standard Securisport® Sports Surface Tester that measures skin surface related frictional behaviour of artificial turf. Little research has been published about the device and its...

Differences in the dynamic skin friction coefficients μ were investigated with respect to age, sex, and anatomical region.A total of 29 volunteers consisting of seven young females, seven old females, seven young males, and eight old males participated in the study.

The skin friction drag, on the other hand, is caused by the streamwise shear stress on the hull surface exerted by the flow of the water, thus dependent on the morphology of the surface Vorburger et. al., 1982. Lastly, residual drag accounts for the amount of energy responsible for the formation of bow

According to the range analysis, it is obvious that the primary and secondary sequences influencing the skin friction drag reduction ratio were factor C spacing, factor A depth, and factor B the angle of repose. The optimal combination A2B3C1 was a 7 mm depth, a 35° angle of repose, and a

Samples from the victim's skin where the assault had taken place and, where applicable, clothing worn over the assaulted area were collected using the double swabbing method. Offender DNA was observed on the victim's skin at 0 h in the majority of samples with a higher transfer rate observed where heavy pressure and friction was used.

In vivo friction properties of human skin M. Zhang * A. F. T. Mak * Abstract. In vivo frictional properties of human skin and five materials, namely aluminium, nylon, silicone, cotton sock, Pelite, were investigated. Normal and untreated skin over six anatomic regions of ten normal subjects were measured under a controlled environment.

Sep 18, 2016· Due to the greater shear stress at the wall, the skin friction drag is greater for turbulent boundary layers than for laminar ones. Skin friction drag is predominant in streamlined aerodynamic profiles, e.g. fish, airplane wings, or any other shape where most

Apr 19, 2017· Pre-tests using the model instead of on humans. In future, it will no longer be necessary for volunteers to rub against a t-shirt. The Empa researcher Agnieszka Dabrowska has developed a skin...

Acute skin injuries have been reported to be more common when playing on earlier generations of artificial turf. 18,30 In a more recent study, Ekstrand et al 16 concluded that burns and friction injuries caused by third-generation artificial turf pitches are not a problem anymore.

Sep 24, 2020· Background Healthcare workers around the world are experiencing skin injury due to the extended use of personal protective equipment PPE during the COVID-19 pandemic. These injuries are the result of high shear stresses acting on the skin, caused by friction with the PPE. This study aims to provide a practical lubricating solution for frontline medical staff working a 4+ hours shift wearing PPE.

Sep 25, 2020· They used the tribometer to test commercially available products to measure how they changed the friction between PDMS and the inner forearm skin

The hydrodynamic function of sharkskin has been under investigation for the past 30 years. Current literature conflicts on whether sharkskin is able to reduce skin friction similar to riblets. To contribute insights toward reconciling these conflicting views, direct numerical simulations are carried out to obtain detailed flow fields around...