ISSN:
1662-8985
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Adhesives are widely used in our life and industrial world. However, it is difficult tocharacterize their mechanical properties because those strongly depend on environmental andmechanical conditions such as temperature, humidity or strain rate. In this paper, we focus on thestrain rate dependence of the interfacial strength and investigate the interfacial strength by peel testsunder several peel rates. The results show that, in lower rate region (under 1.0 mm/s), the interfacialstrength is constant and, in transition region (1.0 to 10 mm/s) the interface strength increased with thepeel rate. In middle rate region (10 to 103 mm/s), the interfacial strength is constant again. Over 103mm/s region, the interfacial strength drops and became lower than those in middle rate cases. Fromthe observation of peeling front by a high speed video camera, the deformation behavior of adhesiveschanges with the peel rate.??Finite element analysis by using cohesive zone model is also conducted,and influence of the rate dependency of adhesive and base material is discussed
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.339.pdf
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