Analysis of composite laminate degradation with use of thermodynamical basis / Janusz German // W: Deterioration and failure of structural materials : chair of strength of materials studies / ed. by Janusz ... więcej

Analysis of composite laminate degradation with use of thermodynamical basis / Janusz German // W: Deterioration and failure of structural materials : chair of strength of materials studies / ed. by Janusz German ; tł. Robin Gill ; Politechnika Krakowska im. Tadeusza Kościuszki. – Kraków : Wydaw. PK, 2014. – (Monografia / Politechnika Krakowska im. Tadeusza Kościuszki. Inżynieria Lądowa). – S. 37-56 : rys. – Bibliogr. 32 poz., Streszcz., Summ. – Tyt. streszcz.: Termodynamiczne podstawy analizy degradacji laminatów kompozytowych. – Seria gł.: Monografia / Politechnika Krakowska im. Tadeusza Kościuszki, ISSN 0860-097X ; 469

The present paper, the damage of fiber-reinforced polymeric matrix laminates is considered with the aim to examine the change of their mechanical properties under external loading. The damage mode in the ... więcej

The present paper, the damage of fiber-reinforced polymeric matrix laminates is considered with the aim to examine the change of their mechanical properties under external loading. The damage mode in the form of intralaminar cracks has been described in terms of damage tensor by Vakulenko and Kachanov. It allows considering the orientation of the defects, which is determined by the orientation of the constituent layers. The crack discontinuity parameter is estimated in the frame of linear elastic fracture mechanics. To describe the changes of the mechanical properties of a body caused by the damage – the constitutive relations, which take into account developing damage, along with stress and strain are needed. In order to derive an adequate description, the approach based on the thermodynamics with internal state variables by Coleman and Gurtin is employed.