首页|Study on Thermo-mechanical Behaviors of Shape Memory Polymer

Study on Thermo-mechanical Behaviors of Shape Memory Polymer

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Dynamic mechanical analysis (DMA) tests are conducted on styrene-based shape memory polymer(SMP) to investigate its glass transition behaviors. The tensile tests at various temperatures are operated to detect the stress-strain relationship of styrene-based SMP. The material elastic moduli and yielding limits at 25℃, 30℃, 40℃, and 50℃ are determined according to the results of tensile test. A new material parameter function is supposed to express the glass transition behavior of styrene-based SMP. The shape memory thermo-mechanical cycle of styrene-based SMP is numerically simulated by Tobushi's constitutive equation coupled with the new material parameter function. Numerical results show the new material parameter function can express the thermo-mechanical properties of styrene-based SMP effectively.

shape memory polymerglass transition behaviormaterial parameter function

Bo ZHOU、Yanju LIU、Jinsong LENG、Tao LI

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College of Aerospace and Civil Engineering, Harbin Engineering University, No. 145 Nantong Street, Harbin 150001, P. R. China Center for Composite Materials and Structures, Science Park of Harbin Institute of Technology, P.O. Box 3011, No.2 Yikuang Street, Harbin 150080, P. R. China

Department of Aerospace Science and Mechanics, Harbin Institute of Technology, P.O. Box 301, No. 92 Xidazhi Street, Harbin 150001, P. R. China

Center for Composite Materials and Structures, Science Park of Harbin Institute of Technology, P.O. Box 3011, No.2 Yikuang Street, Harbin 150080, P. R. China

College of Aerospace and Civil Engineering, Harbin Engineering University, No. 145 Nantong Street, Harbin 150001, P. R. China

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2010

Key engineering materials

Key engineering materials

ISSN:1013-9826
年,卷(期):2010.419/420