Details

Autor(en) / Beteiligte

• Rong, Jigang
• Yang, Jun
• Huang, Youjian
• Luo, Wenbo
• Hu, Xiaoling

Titel

Characteristic Tearing Energy and Fatigue Crack Propagation of Filled Natural Rubber

Ist Teil von

• Polymers, 2021-11, Vol.13 (22), p.3891

Ort / Verlag

Basel: MDPI AG

Erscheinungsjahr

2021

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Below the incipient characteristic tearing energy (T0), cracks will not grow in rubber under fatigue loading. Hence, determination of the characteristic tearing energy T0 is very important in the rubber industry. A rubber cutting experiment was conducted to determine the T0, using the cutting method proposed originally by Lake and Yeoh. Then, a fatigue crack propagation experiment on a edge-notched pure shear specimen under variable amplitude loading was studied. A method to obtain the crack propagation rate da/dN from the relationship of the crack propagation length (Δa) with the number of cycles (N) is proposed. Finally, the T0 obtained from the cutting method is compared with the value decided by the fatigue crack propagation experiment. The values of T0 obtained from the two different methods are a little different.