CAJ | 학술논문

甜菜的力学特性是机具研发的基础。利用英国 Instron－4411型万能材料试验机，对“KWS3148”甜菜不同部位的试样进行压缩试验，分别研究了取样位置、加载速率和含水率对甜菜力学特性的影响，并得到收获期甜菜的弹性模量和抗压强度。试验结果表明：甜菜没有明显的屈服极限，破裂点较为明显；甜菜的力学特性受取样位置和加载速率的影响，且尾根处抗压强度最小；载荷加载速率对甜菜的弹性模量和最大抗压强度影响极显著，载荷位置对甜菜的最大抗压强度影响显著；随着加载速率的增加，同位置试样的弹性模量逐渐增大，最大抗压强度先减小后增大；甜菜的弹性模量和最大抗压强度分别随着含水率的减小而增大；弹性模量为（12．17±2．26） MPa，抗压强度为（2．67±0．3）MPa。
첨채적역학특성시궤구연발적기출。이용영국 Instron－4411형만능재료시험궤，대“KWS3148”첨채불동부위적시양진행압축시험，분별연구료취양위치、가재속솔화함수솔대첨채역학특성적영향，병득도수획기첨채적탄성모량화항압강도。시험결과표명：첨채몰유명현적굴복겁한，파렬점교위명현；첨채적역학특성수취양위치화가재속솔적영향，차미근처항압강도최소；재하가재속솔대첨채적탄성모량화최대항압강도영향겁현저，재하위치대첨채적최대항압강도영향현저；수착가재속솔적증가，동위치시양적탄성모량축점증대，최대항압강도선감소후증대；첨채적탄성모량화최대항압강도분별수착함수솔적감소이증대；탄성모량위（12．17±2．26） MPa，항압강도위（2．67±0．3）MPa。
The mechanical property of sugar beet is the foundation of the machinery research and development .In order to research the effects of the factors on the mechanical properties of sugar beet , such as sampling position , loading rate and moisture content , the compression test of the sample of “KWS3148” sugar beet root was carried out by universal tes-ting machine “Instron-4411”.And the elastic modulus and compressive strength of sugar beet in the harvest was ob-tained .The results show that sugar beets have not obvious yield limit , while broken point is more obvious .The properties of sugar beet were affected by sampling position and loading rate .And the tail root was prone to injury because compres-sive strength is relatively small .The loading rate has significant effects on the elastic modulus or the maximum compres-sive strength respectively .With the increasing of the loading rate , the elastic modulus is increased , while the maximum compressive strength increased after decrease .On the sugar beet samples , the load pressure position of sugar beet has effect on the maximum compressive strength , the elastic modulus or the maximum compressive strength increased as mois-ture content decreased .For“KWS3148” sugar beet in harvest , the elastic modulus was ( 12 .17 ±2 .26 ) MPa , the maxi-mum compressive strength was (2.67±0.3)MPa.