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当前位置: 首页 > 文章 > 冬季覆盖地膜的拉伸试验及有限元仿真分析 农机化研究 2016,38 (6) 215-218
Position: Home > Articles > Study on the Tensile Test and Analysis of Winter Mulching Journal of Agricultural Mechanization Research 2016,38 (6) 215-218

冬季覆盖地膜的拉伸试验及有限元仿真分析

作  者：
杨业龙;叶云霞;谢建华;曹晓冉;孙超伟
单  位：
新疆农业大学
关键词：
残地膜;力学性能;ANSYS;有限元
摘  要：
通过对冬季覆盖厚度为0.006mm的聚乙烯残地膜纵向、横向和直角撕裂拉伸负荷,以及断裂伸长率等力学性能的测试,获得了残地膜力学本构特性。利用有限元软件ANSYS对拾膜杆齿捡膜时地膜的变形和应力应变情况进行仿真和分析。结果表明:冬季覆盖地膜纵向的拉伸强度大于横向的拉伸强度和直角撕裂的拉伸强度;拾膜时,杆齿端部的地膜变形最大,应力应变最大值都发生在与杆齿中部接触的地膜处。
译  名：
Study on the Tensile Test and Analysis of Winter Mulching
作  者：
Yang Yelong;Ye Yunxia;Xie Jianhua;Cao Xiaoyan;Sun Chaowei;Xinjiang Agricultural University;
关键词：
plastic film;;mechanical properties;;ANSYS;;finite element
摘  要：
Through the testing of the mechanical properties of the longitudinal,transverse and orthogonal tear tensile load and tensile elongation for the polyethylene mulching film covered in winter which thickness is 0.006 mm,the mechanical constitutive properties of the mulching film were obtained.The finite element software ANSYS was used to emulating and discussing the deformation and stress strain for the mulching film when was picked up by the mulching film pole tooth,the results show that:for the mulching film in winter,the tensile strength of longitudinal is greater to the transverse and the rectangular tear;the maximum variant of the mulching film was that it was picked up on the top of the mulching film pole tooth,the maximum of the deformation and stress strain was that it was picked up at the junction of the film and the central of pole tooth.

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