基于abaqus的木材顺纹动态压缩仿真实验  

Experimental study on dynamic compression simulation of wood?parallel to grain based on abaqus

作　　者：李树森[1] 马文龙[1] 曾剑锋[1] 彭程[1] 

机构地区：[1]东北林业大学机电工程学院,黑龙江哈尔滨150040

出　　处：《中南林业科技大学学报》2013年第4期102-105,共4页Journal of Central South University of Forestry & Technology

基　　金：哈尔滨市科技创新人才研究专项基金项目(2012RFXXG077);东北林业大学重点课程建设项目(Z00397)

摘　　要：以一维应力波理论和破坏理论为基础,利用abaqus有限元分析软件进行动力学仿真实验。介绍了一维应力波的传播过程,并推导了杆中质点沿x轴方向速度与质点轴向应力、应变之间的关系。根据影响木材力学特性的因素,选取了具有一定代表性的顺纹樟子松作为实验试件.使用abaqus软件对木材顺纹动态压缩进行建模,约束边界条件、设定参数、仿真。本实验通过对仿真结果的分析获得了木材动态压缩的力学特性关系,为检测木材在高应变率压缩状态下的力学性能提供了有利的参考依据。Based on one-dimensional stress wave theory and failure theory, by adopting abaqus to simulate the dynamics experiment was conducted, the one-dimensional stress wave propagation process was introduced, and the relationship between the velocity of particle in the rod along the x-axis and particle axial stress, strain was deduced. According to the factors of influencing wood mechanical properties, the experiment chose P. sylvestris var. mongolica wood parallel to grain as the specimen. The dynamic compression model about the wood was established, and constraint boundary conditions, setup parameters and simulation were also accomplished by using abaqus soft-ware. Through the simulation experiments, the mechanical properties relation of wood dynamic compression was set up, thus providing the references to detecting wood mechanical properties under the condition of high strain rate.

关 键 词：樟子松 木材顺纹压缩 动态压缩 有限元分析 仿真 

分 类 号：S791.253[农业科学—林木遗传育种]