摘要
在皮革顶伸状态下蠕变性能研究中,采用2个单元的修正广义Kelvin模型,对不同载荷下的应变(ε)-时间(t)关系曲线进行了拟合,并用一元三次多项式拟合出了皮革在顶伸状态下的应变(ε)-负荷(F)关系曲线;采用补充数据的方法,拟合出应变(ε)-负荷(F)-时间(t)关系的三维曲面模型,并通过该模型可以在一定的范围内对皮革的蠕变性能进行预测,可以计算出皮革在特定条件下的蠕变性能参数。
In the study of leather creep behavior under lastometer state, a modified generalized Kelvin model with two Kelvin units was used to simulate the relationship of strain(ε) -time (t), and one monadic cubic polynomial was used to simulate the relationship of strain(ε) - force(F) , under different loads. A three - dimensional mathematics model with strain(ε) - force(F) - time (t) relation was simulated by adding data method. According to this three - dimensional mathematics model, leather creep behavior at different loads can be predicted, and parameters of leather creep behavior can be calculated in the certain range.
出处
《中国皮革》
CAS
北大核心
2009年第13期9-11,15,共4页
China Leather
基金
国家自然科学基金委员会(项目名称:拉伸
弯曲
压缩和顶伸变形状态下皮革蠕变性能研究
项目批准号:20776154)
关键词
皮革
蠕变
顶伸
数学模型
三维图
leather
creep
lastometer
mathematics model
three - dimensional diagram