CAJ | 학술논문

在分析甘蔗叶鞘的结构、生长性状和强度特性的基础上，进行了叶鞘个体的破坏试验和整体包裹茎秆叶鞘的摩擦破坏试验，得出了叶鞘个体破坏的基本强度值和破坏形式，提出了符合叶鞘生长性状和强度特性的剥离方式．叶鞘个体最容易实现的破坏形式为在横向拉伸力作用下的薄壁组织撕裂，最大横向抗拉强度（σ2max ）为0.90 MPa．撕裂后的叶鞘与茎秆在轴向上的最大连接强度（σtmax ）为0.78 MPa．在剥离叶鞘的过程中应首先对叶鞘进行横向拉伸作用造成叶鞘撕裂，破坏叶鞘对茎秆的包裹性能，再进行轴向刮擦作用将叶鞘从茎秆上撕扯脱落．叶鞘剥离应该同时满足2个基本条件：1）在垂直于叶鞘纤维方向的应力（σ2）不小于σ2max；2）轴向应力（σ1）不小于σtmax ．
재분석감자협초적결구、생장성상화강도특성적기출상，진행료협초개체적파배시험화정체포과경간협초적마찰파배시험，득출료협초개체파배적기본강도치화파배형식，제출료부합협초생장성상화강도특성적박리방식．협초개체최용역실현적파배형식위재횡향랍신력작용하적박벽조직시렬，최대횡향항랍강도（σ2max ）위0.90 MPa．시렬후적협초여경간재축향상적최대련접강도（σtmax ）위0.78 MPa．재박리협초적과정중응수선대협초진행횡향랍신작용조성협초시렬，파배협초대경간적포과성능，재진행축향괄찰작용장협초종경간상시차탈락．협초박리응해동시만족2개기본조건：1）재수직우협초섬유방향적응력（σ2）불소우σ2max；2）축향응력（σ1）불소우σtmax ．
Based on an analysis of the structure , traits and mechanical strength characteristics , sheath de-struction test of individuals and overall package of stem-leaf sheath rubbing destruction test were carried out separately .The basic strength and failure modes of individual damage of leaf sheath were established . The optimal split leaf sheath methods were summarized which were in line with its growth traits and strength characteristics of sheath .Destruction of the leaf sheath was best achieved by individuals in the form of parenchyma under transverse tensile forces tear , with the maximum transverse tensile strength (σ2max ) being 0.90 MPa.After tearing the leaf sheath , the connection strength of the leaf sheath and stern (σ2max) was 0.78 MPa.The first step of splitting leaf sheath was to stretch sheath laterally to tear sheath and destroy the cover of sheaths to the stalks .Then, sheaths should be scratched axially to rip sheath from the stem .To accomplish the sheath stripping completely , the following 2 basic conditions should be met .Stress that perpendiculars to the direction of leaf sheath fibers (σ2 ) should be no less than the maximum lateral tensile strength σ2max.Axial stress (σ1) should be no less than σtmax, which is the maximum strength of resisting ripping of leaf sheath and stem .