CAJ | 학술논문

以兴安落叶松成熟材为研究对象，探讨以早晚材物理力学为基本单元建立无疵试样力学模型的可行性。首先通过试验法获得兴安落叶松成熟材早、晚材薄片的物理力学性质，然后运用经典层板理论建立顺纹抗拉弹性模量力学模型，并进行试验验证。结果表明：以早晚材物理力学性质为建模基础的方法可行；密度是成熟材弹性模量变异性的主要影响因素；利用该方法建立的无疵试样力学模型，其相对误差低于5%，同时该方法能够为进一步建立兴安落叶松成熟材其他力学模型打下基础。
이흥안락협송성숙재위연구대상，탐토이조만재물리역학위기본단원건립무자시양역학모형적가행성。수선통과시험법획득흥안락협송성숙재조、만재박편적물리역학성질，연후운용경전층판이론건립순문항랍탄성모량역학모형，병진행시험험증。결과표명：이조만재물리역학성질위건모기출적방법가행；밀도시성숙재탄성모량변이성적주요영향인소；이용해방법건립적무자시양역학모형，기상대오차저우5%，동시해방법능구위진일보건립흥안락협송성숙재기타역학모형타하기출。
In order to research the feasibility of modeling the mechanical performances of clear wood,in which the properties of earlywood(EW)and latewood(LW)were chosen as the fundamental elements of the models,Larix gmelinii mature wood was taken as research object. The properties of EW and LW were obtained by experiment at first. Then, according to the classical laminate theory,the model of clear wood longitudinal elastic modulus( LMOE) ,was established and verified. The results of LMOE model showed that it was possible to set up Larix gmelinii mature clear wood mechanical models based on EW and LW,and density was the mainly factor influencing elastic property of mature soft wood in the models. There relative errors of LMOE model were less than 5%. Besides it was a basic method to set up other mechanical models of Larix gmelinii mature wood,of which EW and LW properties were the components.