Partner: Z.X. Li


Ostatnie publikacje
1.Li Z.X., Mróz Z., Damage model for viscoplastic-softening behavior: cement paste and concrete, Theoretical and Applied Fracture Mechanics, ISSN: 0167-8442, DOI: 10.1016/0167-8442(94)00005-0, Vol.20, No.2, pp.105-113, 1994

Streszczenie:

A viscoplastic-softening model is developed; it invokes damage accumulation depending on the viscous strain and stress rates. For deformation beyond the peak on the uniaxial stress-strain curve, the softening behavior is modelled by applying the accounting for loss in stiffness due to localized material damage by cracking. Predicted are the hardening/softening behavior of cement paste. The results for applied strain rates of 3 × 10−3, 3 × 10−2 and 3 × 10−1 s−1 agreed well with the test data. Similar success was obtained for the creep of two types of concrete under compression.

Afiliacje autorów:

Li Z.X.-other affiliation
Mróz Z.-IPPT PAN