A finite deformation thermomechanical （热机的有限变形）.pdf

International Journal of Solids and Structures 51 (2014) 2777–2790 Contents lists available at ScienceDirect International Journal of Solids and Structures journal homepage: www.else /locate/ijsolstr A finite deformation thermomechanical constitutive model for triple shape polymeric composites based on dual thermal transitions Qi Ge a, Xiaofan Luo b,c, Christian B. Iversen b,c, Hossein Birjandi Nejad b,c, Patrick T. Mather b,c, Martin L. Dunn a, H. Jerry Qi a,⇑ a Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309, United States b Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY 13244, United States c Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, United States a r t i c l e i n f o a b s t r a c t Article history: Shape memory polymers (SMPs) have gained strong research interests recently due to their mechanical Received 8 October 2013 action that exploits their capability to fix temporary shapes and recover their permanent shape in Received in revised form 14 January 2014 response to an environmental stimulus such as heat, electricity, irradiation, moisture or magnetic field, Available online 8 April 2014 among others. Along with interests in conventional ‘‘dual-shape’’ SMPs that can recover from one tempo- rary shape to the permanent shape, multi-shape SMPs that can fix more than one temporary shapes and Keywords: recover sequentially from one temporary shape to another and