Cheng Yuan-sheng. Determination of Expression of Continuous Damage Parameter for Non-Ageing Materials Under Constant Tensije Load[J]. Applied Mathematics and Mechanics, 1986, 7(3): 279-284.
 Citation: Cheng Yuan-sheng. Determination of Expression of Continuous Damage Parameter for Non-Ageing Materials Under Constant Tensije Load[J]. Applied Mathematics and Mechanics, 1986, 7(3): 279-284.

# Determination of Expression of Continuous Damage Parameter for Non-Ageing Materials Under Constant Tensije Load

• Publish Date: 1986-03-15
• Under constant uniazial tensile load continuous damage parameter for non-ageing brittle materials may be ezpressed as
w(P/A0)=g(P/A0)+f1(P/A0)f2(t)
The determination of the expression for g(P/A0)had been pointed out by[4].Hut how to determine the expressions for f1(P/A0)and f2(t), the solution to this problem is not yet in sight.Now the solution to this problem is given by the present paper, This paper points out f1(P/A0) f2(t)=φ(P/A0)t and the method of the determination of the expression for φ(P/A0).
•  [1] Kachanov, L, M On failure time under conditions of creep, (in Russian) Izv, Akod,Nauk SSSR, 8 (1958), 26-31. [2] Odqvist, F, K, G, and J, Hult, Some aspect of creep rupture, Arkiv for Fysik.,19,4 (1961), 379-382. [3] Broberg, H A new criterion for brittle creep rupture, T, Appl, Merh.,41(1974),809-811. [4] Piechnik, S.and H.Pachla, Law. of continuous damage parameter for non-ageing materials, Engng Fracture Mech.,12, 2 (1979), 199-209. [5] Cheng Yuan-sheng, A review on the law of continuous damage parameter for non-ageing materials, Engng Fracture Mech.,17, 3 (1983), 211-217.

### Catalog

###### 通讯作者: 陈斌, bchen63@163.com
• 1.

沈阳化工大学材料科学与工程学院 沈阳 110142