新加材料的问题和相关定义
哪位知道，线性硬化模型，幂指数硬化模型，分段线性硬化模型，都是什么意思？我在新加材料的时候，根据这三种模型，需要的参数也是不一样，很是迷糊，在材料网站上查到下面数据，只是不清楚哪些DYNAFORM里面需要，还请指教？
Titanium Ti-6Al-4V (Grade 5), STATitanium Ti-6Al-4V (Grade 5), STA
Physical Properties |
Metric |
English |
Comments |
Density |
4.43 g/cc |
0.160 lb/in³ |
|
Mechanical Properties |
Metric |
English |
Comments |
Hardness, Brinell |
379 |
379 |
Estimated from Rockwell C. |
Hardness, Knoop |
414 |
414 |
Estimated from Rockwell C. |
Hardness, Rockwell C |
41 |
41 |
|
Hardness, Vickers |
396 |
396 |
Estimated from Rockwell C. |
Tensile Strength, Ultimate |
1170 MPa |
170000 psi |
|
Tensile Strength, Yield |
1100 MPa |
160000 psi |
|
Elongation at Break |
10.0 % |
10.0 % |
|
Modulus of Elasticity |
114 GPa |
16500 ksi |
Average of tension and compression |
Compressive Yield Strength |
1070 MPa |
155000 psi |
|
Notched Tensile Strength |
1550 MPa |
225000 psi |
Kt (stress concentration factor) = 6.7 |
Ultimate Bearing Strength |
2140 MPa |
310000 psi |
e/D = 2 |
Bearing Yield Strength |
1790 MPa |
260000 psi |
e/D = 2 |
Poissons Ratio |
0.330 |
0.330 |
|
Charpy Impact |
23.0 J |
17.0 ft-lb |
V-notch |
Fatigue Strength |
160 MPa |
23200 psi |
Kt (stress concentration factor) = 3.3 |
700 MPa |
102000 psi |
Unnotched |
|
Fracture Toughness |
43.0 MPa-m½ |
39.1 ksi-in½ |
|
Shear Modulus |
44.0 GPa |
6380 ksi |
|
Shear Strength |
760 MPa |
110000 psi |
Ultimate shear strength |
Electrical Properties |
Metric |
English |
Comments |
Electrical Resistivity |
0.000178 ohm-cm |
0.000178 ohm-cm |
|
Magnetic Permeability |
1.00005 |
1.00005 |
at 1.6 kA/m |
Magnetic Susceptibility |
0.00000330 |
0.00000330 |
cgs/g |
Thermal Properties |
Metric |
English |
Comments |
CTE, linear |
8.60 µm/m-°C |
4.78 µin/in-°F |
|
9.20 µm/m-°C |
5.11 µin/in-°F |
average |
|
9.70 µm/m-°C |
5.39 µin/in-°F |
average |
|
Specific Heat Capacity |
0.5263 J/g-°C |
0.1258 BTU/lb-°F |
|
Thermal Conductivity |
6.70 W/m-K |
46.5 BTU-in/hr-ft²-°F |
|
Melting Point |
|||
Solidus |
1604 °C |
2919 °F |
|
Liquidus |
1660 °C |
3020 °F |
|
Beta Transus |
980 °C |
1800 °F |
|
