Understanding the need of the compression branch to characterize hyperelastic materials

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• 作者：Marcos Latorre^a ; ^{m.latorre.ferrus@upm.es} ; Erica De Rosa^b ; ^{eri.derosa@studenti.unina.it} ; Francisco J. Montá ; ns^a ; ^{fco.montans@upm.es}
• 关键词：Hyperelasticity ; Biological tissues ; Experimental determination ; Ogden model ; Sussman-Bathe model
• 刊名：International Journal of Non-Linear Mechanics
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：89
• 期：Complete
• 页码：14-24
• 全文大小：1087 K
• 卷排序：89

文摘

The compression branch is needed to characterize materials. Using only tensile tests a physically undetermined problem is obtained. When using only tensile tests, the several minima obtained correspond to different compression behaviors. Using more tests than needed results in a physically overdetermined problem. WYPIWYG procedures need both branches because the solution is exactly obtained.