Simulational Studyon Biaxial Tensile Test of the Envelope Material of Stratospheric Airship
Tear propagation is the typical fracture mode of fabric laminates,which is affected by stress and damage shape (size).In this paper,envelope material which is mainly composed of fabric laminates used in stratospheric airship is the objective of the study.The tear propagation and tearstrength of Cross-shaped specimens with initial damage whichwere in different situations (size,angle and shape) were studied through biaxial tensile test which was conducted in a tailor-made testing machine,and the strength is noted simultaneously to gain the mechanical properties of the specimens.A finite element model was also built in ABAQUS,simulating the biaxial tensile condition,and the simulation results were compared with the test results and observed to have good agreement between them.
Envelopematerial Biaxialtensile Tearstrength Finite element simulation
Yanbo Zhang Mingyun Lv Shouchao Gu Junhui Meng
School of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China
国际会议
广州
英文
1006-1011
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）