Simulation and experimental verification of thermal expansion of metal and glass cementing bodies
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摘要: 仿真分析了热膨胀系数不同的金属和玻璃胶合体在不同温度下的形变，同时使用热膨胀仪测试了不同金属的热膨胀系数，随后，将热膨胀系数不同的金属分别与相同材料的玻璃进行胶合，最后将胶合体置于半封闭空间并对其整体进行加热，采用哈特曼波前测试系统测试胶合体的形变。结果表明，胶合体的仿真数据和实验数据基本吻合。该仿真与实验结果，对不同材料属性的胶合体在热膨胀匹配设计方面具有一定的指导意义。Abstract: The stress of different adhesive bodies were simulated and analyzed at different temperature, and the thermal expansion coefficient of different metals were tested by the Thermal Expansion Instrument. Then, the metals with different thermal expansion coefficient were bonded to the glass separately, then the adhesive bodies were heated in a semi-enclosed space and their deformation were measured by Hartmann. The results show that the simulation data of the adhesive bodies agree well with the experiment data. It can be used to guide the design of thermal expansion matching for different attributes materials.
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Key words:
- thermal expansion coefficient /
- adhesive body /
- hartmann
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图 1 DIL 402热膨胀仪和双样品支架
Figure 1. Thermal expansion instrument DIL 402 and double sample bracket
图 6 金属1+玻璃胶合体40，50，60 ℃的应变
Figure 6. Strain of the adhesive body of metal 1 and glass at 40，50，60 ℃
图 7 金属1+玻璃胶合体40，50，60 ℃的应力
Figure 7. Stress of the adhesive body of metal 1 and glass at 40，50，60 ℃
图 8 金属2+玻璃胶合体40，50，60 ℃的应变
Figure 8. Strain of the adhesive body of metal 2 and glass at 40，50，60 ℃
图 9 金属2+玻璃胶合体40，50，60 ℃的应力
Figure 9. Stress of the adhesive body of metal 2 and glass at 40，50，60 ℃
图 10 金属3+玻璃胶合体40，50，60 ℃的应变
Figure 10. Strain of the adhesive body of metal 3 and glass at 40，50，60 ℃
图 11 金属3+玻璃胶合体40，50，60 ℃的应力
Figure 11. Stress of the adhesive body of metal 3 and glass at 40，50，60 ℃
表 1 三种金属和玻璃材料在40，50，60 ℃时的应力和应变汇总表
Table 1. Strain and stress of the adhesive bodies at 40，50，60 ℃
No. temperature/℃ strain/μm stress/MPa metal 1+ glass metal 2+ glass metal 3+ glass metal 1+ glass metal 2+ glass metal 3+ glass 1 40 1.35 7.05 92.4 0.39 2.39 31.37 2 50 2.02 10.58 139 0.59 3.53 47.06 3 60 2.69 14.1 185 0.78 4.71 62.75 
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