Thermomechanical fatigue damage of laminated composites
Posted: Thu Oct 19, 2023 6:38 pm
The thermomechanical and fatigue damage code abaqus-ddm-tm-2017.obj can simulate the following:
Quasi-static
1- Quasi-static (monotonic) thermal load from SFT to whatever temperature T < SFT. See Ex-11-1 in https://barbero.cadec-online.com/feacm- ... hapter_11/
2- Quasi-static mechanical load at constant temperature (new example Ex-11-3), similar to the examples in chapter 9 of the textbook FEACM 2nd Edition.
3- Quasi-static combined thermo-mechanical load.
Fatigue
4- Quasi-static thermal-fatigue load for any number of cycles N. See Ex-11-2 in https://barbero.cadec-online.com/feacm- ... hapter_11/
5- Quasi-static mechanical-fatigue load for any number of cycles N.
6- Quasi-static combined thermo-mechanical-fatigue load for any number of cycles N.
State variables (SDV) that can be visualized (module: Visualization > Toolbar: Field Output Dialog) are listed in p. 428 of the textbook, and summarized here:
True state variables
SDV 1,13,25,etc, for laminas 1,2,3, etc.: crack density \lambda
SDV 2,14,etc.: Longitudinal tensile activation function g1t
SDV 3,etc.: Longitudinal compression activation function g1c
Not true state variables, but included for visualization
SDV 4,etc.: Longitudinal tensile damage D1t
SDV 5,etc.: Transverse tensile damage D2
SDV 6,etc.: Shear damage D6
SDV 7,etc.: Longitudinal stress in lamina c.s.
SDV 8,etc.: Transverse stress in lamina c.s.
SDV 9,etc.: Shear stress in lamina c.s.
SDV 10,etc.: Transverse damage activation function g2t
SDV 11,etc.: ERR mode I, GI, useful for using the Master Paris Law (Chapter 11)
SDV 12,etc.: ERR mode II, GII, useful for using the Master Paris Law (Chapter 11)
Temperature dependent properties in Table 11.4 (p. 429) and cited papers.
Quasi-static
1- Quasi-static (monotonic) thermal load from SFT to whatever temperature T < SFT. See Ex-11-1 in https://barbero.cadec-online.com/feacm- ... hapter_11/
2- Quasi-static mechanical load at constant temperature (new example Ex-11-3), similar to the examples in chapter 9 of the textbook FEACM 2nd Edition.
3- Quasi-static combined thermo-mechanical load.
Fatigue
4- Quasi-static thermal-fatigue load for any number of cycles N. See Ex-11-2 in https://barbero.cadec-online.com/feacm- ... hapter_11/
5- Quasi-static mechanical-fatigue load for any number of cycles N.
6- Quasi-static combined thermo-mechanical-fatigue load for any number of cycles N.
State variables (SDV) that can be visualized (module: Visualization > Toolbar: Field Output Dialog) are listed in p. 428 of the textbook, and summarized here:
True state variables
SDV 1,13,25,etc, for laminas 1,2,3, etc.: crack density \lambda
SDV 2,14,etc.: Longitudinal tensile activation function g1t
SDV 3,etc.: Longitudinal compression activation function g1c
Not true state variables, but included for visualization
SDV 4,etc.: Longitudinal tensile damage D1t
SDV 5,etc.: Transverse tensile damage D2
SDV 6,etc.: Shear damage D6
SDV 7,etc.: Longitudinal stress in lamina c.s.
SDV 8,etc.: Transverse stress in lamina c.s.
SDV 9,etc.: Shear stress in lamina c.s.
SDV 10,etc.: Transverse damage activation function g2t
SDV 11,etc.: ERR mode I, GI, useful for using the Master Paris Law (Chapter 11)
SDV 12,etc.: ERR mode II, GII, useful for using the Master Paris Law (Chapter 11)
Temperature dependent properties in Table 11.4 (p. 429) and cited papers.