Fracture surface of laminations in spring steel wire

1970 ◽  
Vol 12 (11) ◽  
pp. 970-971
Author(s):  
Yu. L. Kirsanov ◽  
A. G. Venchikov
Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 2077 ◽  
Author(s):  
Lukas Merker ◽  
Sebastian J. Fischer Calderon ◽  
Moritz Scharff ◽  
Jorge H. Alencastre Miranda ◽  
Carsten Behn

Vibrissae are an important tactile sense organ of many mammals, in particular rodents like rats and mice. For instance, these animals use them in order to detect different object features, e.g., object-distances and -shapes. In engineering, vibrissae have long been established as a natural paragon for developing tactile sensors. So far, having object shape scanning and reconstruction in mind, almost all mechanical vibrissa models are restricted to contact scenarios with a single discrete contact force. Here, we deal with the effect of multi-point contacts in a specific scanning scenario, where an artificial vibrissa is swept along partly concave object contours. The vibrissa is modeled as a cylindrical, one-sided clamped Euler-Bernoulli bending rod undergoing large deflections. The elasticae and the support reactions during scanning are theoretically calculated and measured in experiments, using a spring steel wire, attached to a force/torque-sensor. The experiments validate the simulation results and show that the assumption of a quasi-static scanning displacement is a satisfying approach. Beyond single- and two-point contacts, a distinction is made between tip and tangential contacts. It is shown that, in theory, these contact phases can be identified solely based on the support reactions, what is new in literature. In this way, multipoint contacts are reliably detected and filtered in order to discard incorrectly reconstructed contact points.


2015 ◽  
Vol 112 (6) ◽  
pp. 606
Author(s):  
Xiaofei He ◽  
Xinhua Wang ◽  
Ying Wang ◽  
Yaoqing Meng
Keyword(s):  

2018 ◽  
Vol 880 ◽  
pp. 291-296 ◽  
Author(s):  
Anca Didu ◽  
Violeta Dumitru ◽  
Gelica Stanescu ◽  
Cristina Ploscaru

Samples from high compressibility powders (Ancorsteel 1000B) obtained by pressing at different pressures and sintering at 1150 °C, with (IPASW) and without spring steel wire (Φ = 0.5 mm) reinforcement (IPAS), coated and uncoated with zinc samples were selected for study of corrosion behaviour in salt spray and were subjected to mechanical tests (tensile strenght).


2013 ◽  
Vol 25 (7) ◽  
pp. 1635-1638 ◽  
Author(s):  
冯爱新 Feng Aixin ◽  
李彬 Li Bin ◽  
郭儒成 Guo Rucheng ◽  
薛伟 Xue Wei ◽  
韩振春 Han Zhenchun ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document