Heat of Hydration
DIANA offers a range of early age concrete models and the ability to predict cracking with linear, and more detailed nonlinear analysis.
- Calculation of heat of hydration from:
- direct input of the heat production as function of the degree of reaction
- preprocessing from the adiabatic curver
- user supplied subroutine
Heat of hydration and early age cracking simulation
Simulate the short and long term effects on the stability of concrete structures
The analysis of early-age concrete can be followed by a sequence of analyses which reproduce the different events during the service life of the structure. With an advanced finite element analysis, you can model more realistically the stress state at any time of the life of the structure, taking into account possible deficiencies during construction, which may cause damage or reduce the long-term performance of the concrete structure.
Simulate the effect of pouring concrete technology
Massive concrete casting
Large concrete pours or casting can result in premature cracking, this can be especially detrimental in massive pivotal structures such as hydraulic structures.
DIANA offers a range of analysis features, for heat of hydration, which work in combination with an extensive concrete model library to enable you to choose the right mix, pouring time and casting sequence to help prevent or preclude cracking.
Dedicated features for heat of hydration
- Coupled thermo-stress with automatic conversion of temperature field to mechanical loading
- Possibility to add/remove elements or change boundary conditions during the analysis
- Calculation of heat of hydration from:
- direct input of the heat production as function of the degree of reaction
- preprocessing from the adiabatic curver
- user supplied subroutine
- Heat transfer by conduction, convection and radiation
- Dependence of thermal material properties on temperature, time and degree of reaction
- Time dependence on the convective heat coefficient, to simulate presence or removal of scaffolding, and presence of wind
- Cooling pipe elements
- Evolution of Young’s modulus according to:
- Reinhardt model
- Model codes (CEB-FIP Model Code 1990 & 2010, Eurocode, ACI 209, AASHTO, NEN 6720/A4, JSCE, JCI, KCI)
- Laboratory curves
- User supplied subroutine
- Visco elasticity: Double Power Law, Kelvin and Maxwell chains
- Crack prediction with tensile strength utilization index and degree of reaction dependent tensile strength (linear analysis)
- Crack prediction with non linear analysis:
- Smeared crack models with:
- Degree of reaction dependence of the tension cut-off and tension softening
- Degree of reaction dependence of shear behavior
- Degree of reaction dependence of compression functions
- Discrete crack model with degree of reaction dependence of the tension cut-off and tension softening
- Visco-elasticity with temperature dependent Young’s modulus: Power law, Kelvin and Maxwell chains
- Transient creep
- User-supplied subroutines
Licensing packages
Choose your subscription
We provide a wide range of flexible licensing modules and subscription plans for advanced calculations. Our Sales Team are always more than happy to discuss your requirements and can make individualized proposals based on your specific needs.
