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

Cheng Yuan-sheng

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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.

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.

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

Cheng Yuan-sheng

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai

Received Date: 1985-06-06
Publish Date: 1986-03-15

Abstract

Abstract

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).

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References(5)

References

[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.