EN 1992

The density of normal weight concrete is specified in 11.3.2 as 2200 kg/m³.

The design strength is given in 3.1.6 by

$$f_{cd}=\alpha_{cc}f_c/ \gamma \\$$

For the rectangular stress block this is modified to

$$f_{cd}=\alpha_{cc}f_c / \gamma \space \space \space \space \space \space \space \space \space \space \space \space \space \space \space f_c \leq 50 MPa \\ f_{cd}=\alpha_{cc}1.25(1-f_c /250)f_c/ \gamma \space \space \space \space \space \space f_c >50MPa \\$$

The tensile strength is given in Table 3.1 as

$$f_{ct}=0.3f_c^{2/3} \space \space \space \space \space \space \space \space \space \space \space f_c \leq 50 MPa \\ f_{ct}=2.12ln(1+(f_c+8)/10) \space \space \space \space \space \space \space \space f_c > 50 MPa \\$$

The modulus is defined in Table 3.1

$$E=22\biggl(\frac{f_c+8}{10}\biggl)^{0.3} \\$$

The strains are defined as:

	$\varepsilon_{cu}$	$\varepsilon_{ax}$	$\varepsilon_{plas}$	$\varepsilon_{max}$	$\varepsilon_{peak}$
Parabola-rectangle	$\varepsilon_{cu2}$	$\varepsilon_{c2}$	$\varepsilon_{c2}$
Rectangle	$\varepsilon_{cu3}$	$\varepsilon_{c3}$	$\varepsilon_{\beta}$
Bilinear	$\varepsilon_{cu3}$	$\varepsilon_{c3}$	$\varepsilon_{c3}$	$\varepsilon_{cu3}$	$\varepsilon_{c3}$
Linear				$\varepsilon_{cu2}$	$\varepsilon_{c2}$
Non-linear				$\varepsilon_{cu1}$	$\varepsilon_{c1}$
Popovics
EC2 Confined	$\varepsilon_{cu2,c}$	$\varepsilon_{c2,c}$	$\varepsilon_{c2,c}$
AISC filled tube
Explicit	$\varepsilon_{cu2,c}$	$\varepsilon_{c2,c}$		$\varepsilon_{c2,c}$

$$\varepsilon_{c1}=0.007f_{cm}^{0.31} \space \space \space \space \space \leq0.0028 \\$$

$$\varepsilon_{cu1}= \begin{cases}0.0035 \space \space \space \space \space f_c\leq 50MPa \\ 0.028+0.027\bigl(\frac{90-f_c}{100}\bigl)^4 \\ \end{cases} \\$$

$$\varepsilon_{c2}= \begin{cases}0.002 \space \space \space \space \space f_c\leq 50MPa \\ 0.002+0.000085(f_{ck}-50)^{0.53} \\ \end{cases} \\$$

$$\varepsilon_{cu2}= \begin{cases}0.0035 \space \space \space \space \space f_c\leq 50MPa \\ 0.0026+0.035\bigl(\frac{90-f_{c}}{100}\bigl)^4 \\ \end{cases} \\$$

$$\varepsilon_{c3}= \begin{cases}0.00175 \space \space \space \space \space f_c\leq 50MPa \\ 0.00175+0.00055\bigl(\frac{f_{ck}-50}{40}\bigl) \\ \end{cases} \\$$

$$\varepsilon_{cu3}= \begin{cases}0.0035 \space \space \space \space \space f_c\leq 50MPa \\ 0.0026+0.035\bigl(\frac{90-f_c}{100}\bigl)^4 \\ \end{cases} \\$$

See also the Theory section on Concrete material models.