动物软组织的准线性理论(Ⅱ)——松弛函数G(t)与蠕变函数J(t)

QUASI-LINEAR THEORY IN ANIMAL SOFT TISSUE(Ⅱ)——Relaxation Funciton G(t) and Creep Function J(t)

利用准线性理论中的基本方程组异出了松弛函数 G(t)与需变函数J(t)所满足的方程。探讨了当瞬时应力T[λ(t)]、响应函数T[λ(t)]与应变率无关时所需满足的条件。结果表明,这时T^(?)[λ(t)]仅能为常数。

Equation for the relaxaton function G(t) and creep function J (t) are derived from the basic equations by the quasi-linear theory. The condition when the instantaneous stress T[λ(t)] and response function T^(?)[λ(t)] are independent of strain rate, is discussed.We conclude that the above condition will be satisfied only when T^(?)[λ(t)] is a constant.