欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
通过对PP木纤维复合材料进行应变率为10-4～10-2s-1、温度为90、130、170℃下的单向应力条件下的力学性能试验,结果表明,PP木纤维复合材料的力学响应对温度和应变率都是敏感的,并且升高温度与降低应变率对PP木纤维复合材料的力学性能有等效的影响。利用Maxwell模型提出了该PP木纤维复合材料的一个非线性热粘弹性本构方程,拟合出了相应的粘弹性参数。利用该本构模型模拟了PP木纤维复合材料的热压缩实验,理论计算所得应力-应变曲线与实验结果吻合较好。
英文摘要：
PP wood composite specimens were tested at strain rates from 10^-4 to 10^-2 s^-1 and at temperature of 90, 130, 170℃. Their mechanical responses were shown to be sensitive both to the strain rate and temperature. Besides, it was found that raising the temperature has an equivalent effect as decreasing the strain rate. Based on maxwell model, a nonlinear thermal viscoelastic constitutive model was proposed for the PP wood Composite. Corresponding viscoelastic parameters were obtained through curve fitting with experimental results. Then the model was used to simulate thermal compression of the wood composite. The predicted theoretical results coincided quite well with experimental data.
同期刊论文项目
同项目期刊论文
Comparison of Material Models for Spring Back Prediction in an Automotive Panel Using Finite Element
A simple anisotropic hyperelastic constitutive model for textile fabrics with application to forming
Biomechanical analysis of lumbar interbody fusion with an anisotropic hyperelastic model for annulus
A Phenomenological Thermal-Mechanical Viscoelastic Constitutive Modeling for Polypropylene Wood Comp
期刊信息
位置：