作物茎秆剪切特性研究进展

The Research Progress of the Shear Properties of Crop Stalks

对作物茎秆剪切特性研究方法、内容等进行了阐述与分析,以期为后续相关研究提供借鉴和参考。目前研究仍采用工程力学方法与手段,沿用工程力学剪切参数以及分析体系,研究力学参数与作物茎秆物理特性、微观组织、化学成分关系方面。分析认为,目前制约其研究进程主要是剪切基础理论与茎秆宏观结构与微观组织的剪切行为。进行剪切基础理论研究,架构生物力学剪切理论分析与研究体系;借助现代图像处理与数值模拟技术,精确描述作物茎秆在剪切过程中的响应过程以及规律,两者相互融通,将是作物茎秆抑或生物材料剪切特性研究的方向。

In order to provide a reference for the follow-up study, the research method and content of the shear proper-ties of crop stalk is expounded and analyzed. The present study is still using the methods and means of engineering me-chanics, use the shear parameters and analysis system of engineering mechanics, the present research is focus on the re-lations of mechanical parameters and crop stalk physical characteristics, microstructure, chemical composition. The anal- ysis thinks that the mainly restriction and bottleneck is shearing behavior of shearing theory and stalk maerostructure and microstructure at the present research process. Studies on the fundamental theory of shear, analysis and research on the architecture of biomechanical shear theory; with the technology of modem image processing and numerical simulation, to accurately describe the response process and mechanism of crop stalk in the shearing process, both and mutual accommo-dation, will be the crop stalk or biological material shear properties of direction.