The subsurface stress field caused by both normal loading and tangential loading |
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Authors: | Young-Pil Koo Tae-Wan Kim Yong-Joo Cho |
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Affiliation: | (1) Mechanical Material & Parts Center Busan Techno-Park, Busan 609- 735 Geumjeong-gu, Korea;(2) Nanotribology Laboratory, Ohio State University, Busan 609- 735 Geumjeong-gu, Korea;(3) School of Mechanical Engineering, Pusan National University, Busan 609- 735 Geumjeong-gu, Korea |
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Abstract: | The subsurface stress field caused by both normal loads and tangential loads has been evaluated using the rectangular patch
solution. The effect of tangential loading on the subsurface stress field has been investigated in detail for both the cylinder-on-cylinder
contact and a spur gear teeth contact. For the cylinder-on-cylinder contact, the subsurface stress fields are moved more to
the direction of tangential loads and the positions where the maximum stress occur are getting closer to the surface with
the increasing tangential loads. The subsurface stress fields of the gear teeth contact are expanded more widely to the direction
of tangential loads with the increasing tangential loads. The friction coefficient of a gear teeth contact is low because
they are operated in a lubricated condition, and therefore surface tractions in the EHL condition hardly affect on the subsurface
stress field. |
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Keywords: | Subsurface Stress Tangential Load Elasto-hydrodynamic Lubrication Spur Gear |
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